IL119487A - Semiochemical field trap for blood feeding arthropods - Google Patents

Description

A SEMIOCHEMICAL FIELD TRAP FOR BLOOD FEEDING ARTHROPODS INTERNATIONAL FLAVORS & FRAGRANCES INC.

C26151 clopentanone, ining or the mixture of compounds having the structures: taken alone, or in admixture for repelling blood feeding arthropods, including species of mosquitoes and house flies as well as apparatus for determining repellency and attractancy of semiochemicals such as the aforementioned cycloalkanol de i ative-containing compositions against and for such blood feeding arthropods.

Our invention is also directed to a semiochemical field trap for blood feeding arthropods which has the capability of causing determination of repellency and attractancy of semiochemicals against and for blood feeding arthropods. The field trap comprises: an upright vertically disposed hollow housing means: having arthropod-impenetrable vertical side wall means defining a vertically disposed inner void, (for example, a cylindrical rigid plastic housing produced from a phenol-formaldehyde polymer); having an upper terminal end means provided with gas entry means; having and piercing said side wall means, at least two horizontally-disposed separate sets of apertures, including an aperture set and an aperture set S2; with aperture set being vertically distant from and substantially adjacent to aperture set S2 ; with the apertures of aperture sets and S2 being gas transmission apertures containing gas transmission means (e.g., a polyethylene tube) or having first radiation means sealably inserted therethrough (for example, a light emitting diode or a laser diode ) ; horizontally disposed hollow housing means (for example, horizontally disposed open ended hollow cylinders fabricated from aluminum or rigid plastic such as acrylic plastic) having substantially horizontally disposed arthopod impenetrable side walls defining horizontally disposed inner void means; having oppositely juxtaposed inner and outer open terminal end means; the inner terminal end means being circumferent ially sealably contiguous with a portion of the outer surface of said vertical side wall means of said upright housing means which portion circumscribes a section of the vertical side wall means including at least one aperture of aperture set and at least one aperture of aperture set S2, one of the apertures being a gas transmission aperture containing the gas transmission means (e.g., the polyethylene tubing) and the other of the apertures having sealably contained therethrough radiation means (for example, the light emitting diode or the laser diode); having incorporated into the inner structure thereof arthropod entrapment means (for example, a sticky insect trapping substance as disclosed in the prior art) and having a sustainably releasable insect attractant or repellent semiochemical substance means located within (i) said horizontally disposed inner void means or (ii) said gas transmission means, for example, a matrix comprising a porous containment agent (e.g., polyethylene, polypropylene, a polyamide, a polyurethane or the like) containing in the interstices thereof at least one semiochemical sustainably releasable therefrom (e.g., the cycloalkanol substance-containing composition of our invention) or, for example, the substances and structures described at columns 13, 14 and 15 of U.S. Letters Patent 4,748,860 issued on June 7, 1988 the specification for which is incorporated by reference herein; gas transmission effecting means for causing conveyance of a gas (such as air or carbon dioxide) through said gas entry means into and through said vertically disposed inner void, through a gas transmission aperture of aperture set and/or of aperture set S2 into and through said horizontally disposed inner void means and into the environment surrounding the field trap (for example, such gas transmission effecting means can be a carbon dioxide gas supply means for supplying gasous carbon dioxide simultaneously with the operation of power supply means ) ; (4) optionally second radiation means located within said vertically disposed inner void for conveying insect attracting radiation through substantially each of said gas transmission apertues of aperture set and/or aperture set (5) optionally radiation pulsing means connected to said first radiation means and/or said second radiation means causing said first insect attracting radiation and/or said second insect attracting radiation to have a frequency mimicking insect wing beat and/or insect visual sensing frequencies; (6) at least one power supply means associated with the trap at least energizing the first radiation means and, when applicable, second radiation means and/or the radiation pulsing means; whereby on engagement of the power supply means with the radiation effecting means and simultaneous activation of the gas transmission effecting means and the radiation pulsing means, blood feeding arthropods in the vicinity of the trap are attracted by (i) activated radiation emitted by the radiation means and/or (ii) gas emanating from the outer open terminal end means of the horizontally disposed hollow housing means to a location so close to the trap that in the event that an attracting semiochemical in the sustainably releasable substance means is detected and attracts at least one of the arthropods, such arthropods will enter the horizontally disposed inner void means counter-current to the flow of the emanating gas or gaseous ion (e.g., CO., or ion) and will remain permanently entrapped therein (usually as a result of a sticky substance adhering to the inner portion of the horizontally disposed housing(s)).

It is preferable when using the radiation emission means, to use infra-red light. Control experiments are preferably run using carbon dioxide with the use of infra-red radiation lights (light emitting diodes) and without the use of infra-red radiation lights. However, experiments using the trap may also be carried out with other lights such as bright green lights and blue lights (in the form of light emitting diodes). In both cases the radiation emission means utilizes preferably the circuit of Figure 11 or Figure 12 described, inf a. Other circuits are used when using laser diodes instead of light emitting diodes. An example of the green light being used is one manufactured by the Marktech International Corporation of Menands, New York, Catalog Part No. MT300-CUG (T-1.75 water clear ultra-bright green light emitting diode lamp). When using infra-red radiation means, it is preferable to utilize a gallium arsenide infra-red light emitting diode such as Model MTE 1080 gallium arsenide emitter manufactured by Marktech of 120 Broadway, Menands, New York 12204. When using a laser diode, laser diodes such as those marketed under Catalog Nos. P451 or P452 by the DIGI-KEY® Corporation of 701 Brooks Avenue South, P.O. Box 677, Thief River Falls, Minnesota 56701-0677 are useful and operable.

When used, the radiation pulsing means is intended herein to be a flicker fusion frequency generator to present a frequency of from about 50 up to about 400 cycles per second (Herz). Such frequencies are intended to mimic blood feeding arthropod wing beat frequencies and visual sensing frequencies. The radiation pulsing means is intended to cause the firing of, for example, radiation emitting diodes having a range of from about 400 up to about 1000 nm (nanometers).

The radiation pulsing means can be in the form of a direct radiation stroblight such as that illustrated in Figure 17 or it can be in the form of an off-apparatus stroblight unit which causes radiation pulsing to be conveyed through fiber optic strands as set forth, for example, in Figure 19, described, infra .

In any event, radiation pulsing means which can be used in the practice of our invention are set forth in the following publ ications : (i) published Canadian Patent Application 2,040,615 published on October 17, 1992 (title: "Cel-Alert1 An Easy το-use Emergency Strobe-Light Road Safety Device " ; (ii) the Stroboscope/Tachometer marketed by the Edmund Scientific Company of Barrington, New Jersey; (iii) the "Realistic Wide Angle Strobe Light" Catalog No. 42-3009A marketed by the Radio Shack Division of Tandy Corporation of Ft. Worth, Texas; (iv) the Enerlite Personal Strobe, Catalog No. 61-2506 marketed by the Radio Shack Division of Tandy Corporation of Ft. Worth, Texas Other light emitting diodes that are useful in the practice of our invention are, for example, those set forth in Canadian Published Patent Application 2,065,577 published on October 17, 1992 entitled "Encapsulated Light Emitting Diode And Method For Encapsulation" .

When preparing the semiochemical matrix which is preferably a block, 10 microliters of test material, e.g., the alkyl cyclopentanone and phenyl alkanol derivative-containing compositions of our invention are soaked onto a 9 mm x 9 mm x 9 mm block .

The carbon dioxide supply source is most con dry ice placed in a "zippered" bag (with tubing outlet). The dry ice is placed in a zippered bag and the bag is then placed in an insulated ice chest. Preferably between 4 and 5 kilograms of dry ice is used, preferably in the form of pellets or blocks.

On placing the trap in the test area, the motor means is engaged with the power supply means, preferably, simultaneously, with the engagement of the radiation means with the power supply means. Thus, at the instant that the trap is commenced to be in use, the air flow creation means (e.g., a propeller) begins its rotation simultaneously with the radiation means being energized and with the motor means being energized. Thus, arthropods, e.g., mosquitoes and house flies as set forth, supra, in the vicinity of the trap are attracted by the radiation to a location so close to the trap that in the event that an attracting semiochemical in the matrix is detected by the arthropods, the arthropods will enter the air stream or the C02 stream created by the air flow creation means, e.g., the propeller or the C02 flow or both and be carried into the 3-space within the horizontally disposed hollow housing means. Once within the trap the arthropods will not escape in view of the fact that they are in the vicinity of such gas as carbon dioxide being emitted by the carbon dioxide supply source and they are in the vicinity of radiation emitted by radiation emission means and are attracted thereto. Furthermore, in the event of the presence of a sticky substance within the horizontally disposed hollow housing means, they are trapped by a sticky substance known in the prior art.

The traps are usually run for a period of from about 36 hours up to about 40 hours. They are set up in usually linear transects across flight ranges replicated (6-12 replications) about 10 meters apart.

The gas transmission means transmitting gas from the ! vertically disposed hollow housing to the horizontally disposed ;! hollow housing (e.g., TYGON tubing) requires a screen or i; mesh substance at the orifice thereof within the horizontally !j disposed hollow housing means. Preferably, a nylon mesh is ji used which nylon mesh extends entirely around the upright i •! vertically disposed hollow housing means covering each of the i; gas transmission means (e.g., TYGO >—' tubing orifices).

!' Pr.eferably, the mesh size of the mesh (e.g., nylon mesh) used I for this purpose should range from about 10 up to about 200 lines per inch and thus, for example, may be 20/6 T-66 textured nylon or 70/32 polyester (e.g., a polymer of phthalic anhydride and ethylene glycol).

More specifically, our invention is directed to a method for repelling at least one of the insect species: ( a ) Musca domestica L. (DipterarMuscidae) ; (b) Aedes aegypti; ( c ) Aedes albopictus; (d) Anopheles spp . · ( e ) Coqui llettidia perturbans; (f ) Culiseta spp. ; (g) Culex spp . ; (h) Psorophora spp.; ( i ) Cul icoides spp . ; ( j ) Lutzomyia spp . ; (k ) Aedes spp.; (1) Culex nigripalpus; (m ) Aedes atlanticus; ( n ) Culex salinarius; ( o ) Aedes vexans; (p) Si uliidae spp.; (q) Psoroforia ferox; ( r ) Aedes infirmatus; ( s ) Drosophila melanogaster ; ( t ) Coccinellidae ; (u) Anopheles crucian; and ( v ) Psorophor ia col umbiae for a finite period of time from a three dimensional space comprising the step of exposing said three dimensional space inhabited by: a ) Musca domestica L . ( Diptera : Muscidae ) ; b) Aedes aegypti; c ) Aedes albopictus; d) Anopheles spp . ; e ) Coquillettidia perturbans; f ) Culiseta spp. ; g) Culex spp.; h) Psorophora spp.; i ) Cul icoides spp . ; j ) Lutzomyia spp.; k ) Aedes spp . ; 1 ) Culex nigripalpus; ) Aedes atlanticus; n ) Culex salinarius; o ) Aedes vexans; p) Simul i idae sp . ; ) Psoroforia ferox; r ) Aedes infirmatus; s ) Drosophila melanogaster; t ) Coccinellidae ; u ) Anopheles crucian; and ) Psorophoria columbiae for a finite period of time from a three dimensional space comprising the step of exposing said three dimensional space inhabited by: a) Musca domestica L .( Diptera: Muscidae ) b ) Aedes aegypti ; c) Aedes albopictus ; d ) Anopheles spp . ; e) Coguillettidia perturbans f ) Cul iseta spp . ; g ) Culex spp . ; h ) Psorophora spp . ; i ) Cul icoides spp . ; j) Lutzomyia spp.; k ) Aedes spp . ; 1 ) Culex nigr ipalpus ; ) Aedes atlanticus; n ) Culex sal inar ius ; o) Aedes vexans ; P ) Simuliidae spp . ; q) Psorofor ia fero ; ) Aedes infi r atus ; s ) Drosophila melanogaster ; t ) Coccinel 1 idae ; u) Anopheles crucian; and v) Psorophoria columbiae to a composition of matter which is a cycloalkanol or cyclopentanone or phenyl alkanol derivative-containing composition of matter having the structure: (i) or mixtures of two or more of (i), (ii) and/or (iii).

The mixture (iii), supra, may be [produced by means of a process of reacting a lower alkanoic acid with methyl cyclopentadiene dimer which is a mixture of compounds having the structures: in the presence of a protonic acid such as sulfuric acid or a Lewis acid such a boron trifluoride etherate; and then i .

I saponifying the resulting product with base such as aqueous 50% sodium hydroxide in accordance with the process of Examples I, II, III, IV and V of U.S. Letters Patent 4,275,251 issued on June 23, 1981 (corresponding to issued European Patent Specification 0039232 published on July 27, 1983) the specification for which is incorporated by reference herein.

Our invention is also directed to the use of an insect repelling soap which can on use thereof cause the repellence from the user of any of the species of insects set forth above comprising a soap base and in intimate contact therewith, a cycloalkanol , an alkylcylopentanone or phenylalkanol derivative containing composition having the structure: (i) O or (ii) or a mixture of cycloalkanol derivatives having the structures: or mixtures of two or more of (i) , (ii) and/or (iii).

Such soap articles can be prepared according to the specification of Application for U. S. Letters patent, Serial No. 824,591 filed on January 23, 1992, the specification for which is incorporated herein by reference. j! Our invention is also directed to insect repelling perfume i| bases which can on use thereof effect repellents from the user jl of any of the species of insects set forth above comprising a perfume base and intimately admixed therewith a cycloaknaol or j alkyl cyclopentanone or phenyl alkanol derivati e-containing or mixtures of two or more of (i), (ii) and/or (iii).

Such insect repelling perfume bases can be prepared according to the teachings of Application for U.S. Letters Patent, Serial No. 691,635 filed on April 25, 1991 (now abandoned), the specification for which is incorporated by reference herein.

The insect repelling articles containing the alkyl cyclopentanone or phenylal kanol derivative-containing compositions of our invention taken alone or further in combination with the mixture of cycloalkanol derivatives useful for repelling the insect species set forth, supra, may be produced according to processes set forth at columns 12, 13, 14 and 15 of U.S. Letters Patent 4,748,860 issued on June 7, 1988 the specification of which is incorporated herein by reference. In addition to using the field trap apparatus of our invention, olfactometer apparatus of, for example, U.S.

Letters Patent 4,748,860 of June 7, 1988 may be used in testing the materials for their insect attractancy or repellency, for example, the apparatus of Figure 14 described in detail, infra.

Accordingly, the following Tables I-V(B), inclusive, show the results of utilization of the olfactometer apparatus of Figure 14 in testing for the attractancy or repellency of Musca domest ica L_. (Diptera: Muscidae) and Aedes aegypti using both (i) the cycloalkanol derivati e-containing composition of matter (versus bay leaf oil and clean air); and (ii) the alkyl cyclopentanone or phenylal kanol derivative-containing compositions of our invention (versus clean air): TABLE I AEDES AEGYPTI COMPOSITION TESTED INSECTS PER INTERVAL Air 0 275 375 417 373 359 321 Bay Leaf Oil 0 4 5 14 0 1 1 Cycloalkanol Derivative Containing Composition which is a mixture of compounds having the structures: and TABLE II MUSCA DOMESTICA L . ( DIPTERA: MUSCIDAE ) COMPOSITION TESTED INSECTS PER INTERVAL Air 0 0 62 1 1 1 19 Bay Leaf Oil 0 0 1 0 0 0 1 Cycloalkanol derivative-containing composi tion of Table 1 0 0 2 0 0 1 1 Cycloalkanol derivative- containing composition of Table I.

TABLE III(B) AEDES AEGYPTI (SIX HOURS ) COMPOSITION TESTED INSECTS PER INTERVAL 0 253 231 162 117 125 16 Composition having the structure: 0 0 3 5 2 3 2 xr Cycloalkanol derivative-containing composi tion 0 0 0 0 0 TABLE IV ( A ) AEDES AEGYPTI (ONE HOUR) COMPOSITION TESTED INSECTS PER INTERVAL 0 4 93 213 77 25 28 Cycloalkanol derivative-containing composition of Table I. 0 5 0 0 0 0 0 Composition having the structure: TABLE IV(B) AEDES AEGYPTI (SIX HOURS) COMPOSITION TESTED INSECTS PER INTERVAL Air 0 29 134 95 242 186 289 Cycloalkanol derivative-containing composition of Table I. 0 0 0 1 0 0 0 Composition having the structure: 0 1 3 1 0 1 0 o r Composition having the structure: 0 4 4 1 2 1 4 TABLE V(A) AEDES AEGYPTI (ONE HOUR) COMPOSITION TESTED INSECTS PER INTERVAL 0 86 79 30 114 17 16 Compound having the structure: 36 TABLE V(B) j AEDES AEGYPTI (TWELVE HOURS ) : COMPOSITION TESTED INSECTS PER INTERVAL ! Air 0 30 43 50 20 23 156 Compound having the structure BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a perspective view of the semiochemical field trap for blood feeding arthropods of our invention.

Figure lA is a perspective schematic diagram of the axes in three dimensions used in defining the directional vectors and directions with which the apparatus of our invention is concerned .

Figure 2 is a side elevation view of the predecessor of one embodiment of the semiochemical field trap for blood feeding arthropods of our invention.

Figure 3 is a cut-away side elevation view of the embodiment of the semiochemical field trap of Figure 2.

Figure 4 is a top cut-away view of the apparatus of Figure 2 taken along lines 4-4.

Figure 4A is a cut-away top view of a variation of the apparatus of Figure 2 where the light emitting diodes are located behind a translucent end cover of the horizontally disposed hollow housing means of the apparatus.

Figure 5 is a cut-away top view of the apparatus of Figure 2 taken along lines 5-5.

Figure 5A is a cut-away top view of a variation of the apparatus of Figure 2 showing a mesh screen covering the orifices of the gas transmission means communicating between the void within the vertically disposed hollow housing means and the horizontally disposed hollow housing means.

Figure 6 is a cut-away top view of the apparatus of Figure 2 taken along lines 6-6.

Figure 7 is an electric circuitry diagram of the electric circuit used to activate the radiation means 112A and 112B and 114A and 114B of Figure 2.

Figure 8 is a cut-away side elevation view of an embodiment of a horizontally disposed hollow housing means useful in the apparatus of Figures 2, 3 and 10. ! j j Figure 9 is a cut-away side elevation view of another embodiment of horizontally disposed hollow housing means used in the apparatus of Figures 2, 3 and 10.

Figure 10 is a cut-away side elevation view of a predecessor of a second embodiment of the semiochemical field trap for blood feeding arthropods of our invention.

Figure 10A is a cut-away side elevation view, in detail, of that part of the apparatus of Figure 10 which is concerned with the horizontally disposed hollow housing means; and shows a variation wherein the light emitting diode or laser diode is located behind a translucent end portion of the horizontally disposed hollow housing means.

Figure 10B is a cut-away side elevation view of another :> embodiment of the horizontally disposed hollow housing means illustrated in Figure 10A wherein the radiation emission means • is shown as a laser diode having a diffusion lens between the laser diode and the horizontally disposed hollow housing means translucent end section.

Figure 11 is a diagram showing the circuitry useful in operating the apparatus of Figure 10 using two separate switches; one for the radiation emission entering the horizontally disposed hollow housing means and the other for the radiation emission below the horizontally disposed hollow housing means.

Figure 12 is a schematic diagram of the circuitry for the apparatus of Figure 10 using a single switch for the radiation means as well as for the motor means useful in said apparatus of Figure 10.

Figure 13 is a bar graph showing a comparison of the field trial tests in the semi ochemical field trap for blood feeding arthropods of our invention of repellents against mosquitoes, e.g., Aedes aegypti, Aedes albopictus, Anopheles spp. , Cogui llettidia per turbans , Cul iseta spp . , Culex spp., Psorophora spp . , Aedes spp . , Culex nigripalpus , Aedes atlanticus, Culex salinarius, Aedes vexans , Simul iidae spp., Psoroforia fero , Aedes infirmatus , Drosophila melanogaster , Coccinellidae , Anopheles crucian , and Psorophor ia columbiae comparing in combination with the use of infra-red light emitting diodes and carbon dioxide, air alone, bay leaf oil, the cycloalkanol derivati e-containing composition, lavender oil and vetiver oil.

Figure 14 is a schematic diagram (blown up for illustration purposes) of laboratory olfactometer apparatus useful in ascertaining the efficacy of the cycloalkanol derivative-containing composition of Parent Application, Serial No. 887,138 filed on May 22, 1992 as a repellent for house flies (Musca domestica L. (Diptera:Muscidae) ) and Aedes aegypti indicating in schematic block flow diagram form the utilization of computer assisted efficacy measuring apparatus.

Figure 14A is a detailed section of the apparatus of Figure 14 showing a specific landing site on which an insect lands if attracted by, for example, the cycloalkanol derivati e-containing composition or does not land if repelled by the cycloalkanol derivative-containing composition.

Figure 15 is a series of graphs depicted in three dimensions (in a rectangular mode for the "x" and "y" axes) showing the relative repellency of air, bay leaf oil and the cycloalkanol derivative-containing composition of Parent Application, Serial No. 887,138 filed on May 22, 1992. The graphs are based on experiments run for a total of one hour with six intervals of 10 minutes each. The results are tabulated in Table II, infra. This series of graphs is for the attractiveness or repellency as against house flies (Musca domestica L . (Diptera: uscidae ) ) .

Figure 16 is a series of graphs depicted in three dimensions (in a rectangular mode for the "x" and "y" axes) showing the relative attractiveness or repellency for air, bay leaf oil or the cycloalkanol derivative-containing composition for or against Aedes aegypti . The graphs are based on experiments run for a period of one hour with six intervals of 10 minutes each. The results are tabulated in Table I, supra.

Figure 17 is a side elevation view of one embodiment of the semiochemical field trap for blood feeding arthropods of our invention containing internally-located radiation pulsing means.

Figure 18 is a side elevation view of a second embodiment of the semiochemical field trap for blood feeding arthropods of our invention containing internally-located radiation pulsing means .

Figure 19 is a side elevation view of a third embodiment of the semiochemical field trap for blood feeding arthropods of our invention containing externally-located radiation pulsing means .

Figure 20 is a side elevation view of a fourth embodiment of the semiochemical field trap for blood feeding arthropods of our invention containing internally-located radiation pulsing means .

Figure 21 is top cut-away view of the apparatus of Figure 17 taken along lines 21-21.

Figure 22 is a cut-away side elevation view in detail of the radiation pulsating means radiation source used in the apparatus of Figure 18.

Figure 23 is a top cut-away view of the apparatus of Figure 19 taken along lines 23-23.

Figure 24 is a schematic diagram showing in perspective the radiation source powered by radiation pulsating means for use in the apparatus of Figure 19 taken together with the radiation pulsating means located externally from the apparatus of our invent ion .

Figure 25 is a perspective view of an ell ipsoidally-shaped detergent tablet containing a solid core which includes fused foamed polymeric particles which contain insect repellents which can be one of the alkyl cyclopentanone or phenylalkanol derivative-containing compositions of our invention and if desired also containing an additional polymer, e.g., polyethylene. The polymer particles may, if desired, also contain additional aromatizing agents and insect repelling agents .

Figure 26 is the top view of the ell ipsoidally-shaped detergent tablet of Figure 25.

Figure 27 is a cut-away front view of the ell ipsoidally-shaped detergent tablet of Figure 25 in the direction of the arrows in Figure 26.

Figure 28 is a side view of the ell ipsoidally-shaped detergent tablet of Figure 26.

Figure 29 is a perspective view of a rectangular parallelpiped-shaped detergent tablet containing a rectangular parallelpiped-shaped core comprising a major proportion of fused foamed polymeric particles which contain insect repellents, (e.g., one or more of the alkyl cyclopentanone or phenylalkanol derivative-containing compositions of our invention) and may or may not be aromatized and, if desired, an additional polymer which may or may not contain insect repellent compositions and which may or may not be aromatized.

Figure 30 is a top view of the rectangular parallelpiped-shaped detergent tablet of Figure 29.

Figure 31 is a cut-away front view of the rectangular parallelpiped-shaped detergent tablet of Figure 29 looking in the direction of the arrows in Figure 30.

Figure 32 is a perspective view of an ellipsoidally-shaped detergent tablet containing a hollow insect repellent agent (and, if desired, an aromatizing agent) containing core which includes fused foamed polymeric particles (the insect repellent and, if desired, the aroma imparting agent is in the solid polymer and not in the void of the plastic core).

Figure 33 is a top view of the ellipsoidally-shaped detergent tablet of Figure 32.

Figure 34 is a front cut-away view of the ellipsoidally-shaped detergent tablet of Figure 32 looking in the direction of the arrows in Figure 33, the core thereof being hollow and either containing an insect repellent material (and, if desired, an aroma imparting liquid) or in the alternative being a hollow core wherein the insect repellent material (and, if desired, the aroma imparting material) is in the solid fused foamed polymeric particles which make up the core and wherein the void does not contain anything.

Figure 35 is a bar graph showing a comparison of the field trial tests in the semiochemical field trap of Figure 1 for blood feeding arthropods of our invention of repellence against mosquitoes and house flies, e.g., Musca domestica L . ( Diptera : uscidae ) , Aedes aegypti, Aedes albopictus, Anopheles spp . , Coquillettidia per turbans ,Culiseta spp . , Culex spp . , Psorophora spp . , Aedes spp . , Culex nigr ipalpus , Aedes atlant icus , Culex sal inar ius , Aedes vexans , Simul iidae spp . , Psoroforia ferox , Aedes inf ir atus , Drosophila melanogaster , Coccinel 1 idae , Anopheles crucian , and Psorophor ia columbiae comparing in combination (with the use of pulsating infra-red light emitting diodes) air alone, the compound having the Figure 36(A) is a series of graphs depicting in three dimensions (in a rectangular mode for the "x" and "y" axes) showing the relative repellency of air, the compound having the structure: H The graphs are based on experiments run for a total of one hour with six intervals of ten minutes each. The results are :| tabulated in Table 111(A), infra. This series of graphs is for the attractiveness or repellency as against mosquitoes ( Aedes aegypti ) .

Figure 36(B) is a series of graphs depicted in three dimensions (in a rectangular mode for the "x" and "y" axes) showing the relative repellency of air, the compound having the ! structure: and the mixture of compounds having the structures: ! ! The graphs are based on experiments run for a total of six hours with six intervals of one hour each. The results are tabulated in Table 111(B), infra. This series of graphs is for the attractiveness or repellency as against mosquitoes ( Aedes aegypti ) .

Figure 37(A) is a series of graphs depicted in three dimensions (in a rectangular mode for the "x" and "y" axes) showing the relative repellency of air, the compound having the structure : 1 19,487/2 -40- and The graphs are based on experiments run for a total of one ho with six intervals of ten minutes each. The results are tabulated in Table IV(A), infra. This series of graphs is fo the attractiveness or reoellency as against mosquitoes ( Aedes aegypti ) .

Figu re 37(B) is a series of graphs depicted in three dimensions (in a rectangular mode for the "x" and "y" axes) showing the relative repeller.cy of air, the compound having tl structure: and The graphs are based on experiments run for a total of six hours with six intervals of one hour each. The results are tabulated in Table IV(B), infra. This series of graphs is for the attractiveness or repellency as against mosquitoes ( Aedes aegypti ) .

Figure 38(A) is a series of graphs depicted in three dimensions (in a rectangular mode for the "x" and "y" axes) showing the relative repellency of air and the compound having the structure: of our invention. The graphs are based on experiments run for a total of one hour with six intervals of ten minutes each. The results are tabulated in Table V(A), infra. This series of graphs is for the attractiveness or repellency as against mosquitoes (Aedes aegypti).

Figure 38(B) is a series of graphs depicted in three dimensions (in a rectangular mode for the "x" and "y" axes) showing the relative repellency of air and the compound having the structure: of our invention. The graphs are based on experiments run for a total of twelve hours with six intervals of two hours each. The results are tabulated in Table V(B), infra. This series of graphs is for the attractiveness or repellency as against mosquitoes (Aedes aegypti ) .

DETAI LED DESCRIPTION OF THE DRAWINGS Referring to Figures 1-12 and 17-24, the semiochemical field tr*ap 100 for blood feeding arthropods is located in a three-space (as shown in Figure lA) defined by a vertical "y" axis and horizontal "x" and "z" axes each of which "x" and "z" axes is perpendicular to said "y" axis and each of which "x" and "z" axes is perpendicular to one another. The semiochemical field trap 100 is shown in perspective view in Figure 1, standing in a field on stand 280 held in cup 282.

Referring to the embodiment of the semiochemical field trap for blood feeding arthropods illustrated in Figures 2, 3, 4, 4A, 5, 5A and 6, such a field trap comprises: (1) an upright vertically disposed first hollow outer housing 102 having a vertical axis parallel to and on the "y" axis, having substantially rigid arthropod-impermeable vertically disposed side walls 104 encompassing and defining a first inner void 106 surrounded by said side walls and surrounding said "y" axis, said housing (A) having a side wall upper terminal end (with circumference 144 ) located in a first "x-z" plane perpendicular to said "y" axis; (B) having an upper a thropod-impermeable horizontal surface located in said first "x-z" plane being entirely contiguous with said side wall upper terminal end (having circumference 144 ) said upper horizontal surface (i) being substantially perpendicular to the vertical "y" axis of said hollow outer housing 102 and (ii) having an upper horizontal surface vertically- directed aperture therethrough 108; having an upper circumferentially disposed outer housing section having outer surface area a middle circumferen ially disposed outer housing section having outer surface area and a lower ci cumferentially disposed outer housing section having outer surface area with the overall surface area of the outer housing A, being related to the other surface areas, thusly : with the overall surface area being indicated by reference numeral 142 ; the lower end of said upper outer housing section having a circumferential boundary with the upper end of said middle outer housing section; and the lower end of said middle outer housing section having a circumferential boundary with the upper end of said lower outer housing section; said upper outer housing section having a first horizontally arranged set of apertures 110a and 110b therethrough and a second horizontally arranged set S2 of apertures 112a and 112b therethrough, each of the apertures of set being located along a vertical directional vector parallel to the "y" axis, each of the apertures of set S2 being located along said vertical directional vector thereby enabling an aperture of set to correspond with an aperture of set S2 (for example, aperture 110a and aperture 112b ) forming a corresponding aperture pair with each of said apertures being located along the same vertically disposed directional vector each aperture in said first aperture set S^, 110a and 110b being located along a directional vector v, in a second "x-z" plane with said directional vector being perpendicular to said "y" axis and vertically-disposed side walls 104 with and each aperture in said second aperture set S2 112a and 112b being located in a directional vector being perpendicular to said "y" axis and said vertically-disposed side walls, wi th and said middle outer housing section having a third horizontally arranged set of apertures (indicated by reference numerals 114a and 114b) at a location below and proximate said boundary B^, each aperture in said third aperture set being located along a directional vector fourth "x-z" plane, said directional vector being perpendicular to said "y" axis and said vertically disposed side walls 104 ; extending outwardly from said first hollow outer housing 102 , a plurality of horizontally disposed hollow housings 116a and 116b, with each of said horizontally disposed hollow housings; (A) having rigid arthropod (impermeable substantially horizontally disposed side wall 118a; (B) encompassing and defining a second inner void 120a; (C) having a central axis located along a directional vector wherein located in a fifth "x-z" plane with V being perpendicular to said "y" axis; being substantially parallel to vector being substantially parallel to being substantially perpendicular to (D) having a circumferential substantially disposed outer terminal end located in a first "y-x/z" plane 190 ; (E) having a circumferentially substantially vertically disposed inner terminal end 180 located in a second "y-x/z" plane, said inner terminal end 180 (i) being circumferentially and sealably contiguous with an outer surface area section 142 of said upper first outer housing section; and (ii) circumscribing an aperture pair and (F) having located in said second inner void 120a a fixedly-positioned gas stream activatable semiochemical-containing matrix 126 comprising a porous containment agent containing in the interstices thereof at least one semiochemical sustainably releasable therefrom, with the matrix being supported by matrix support 128 ; one aperture of each of the aperture pairs of aperture sets and S2 containing a tightly sealably fitted radiation means 122a which effects transmission of insect attracting radiation to the interior of said horizontally disposed hollow housing 120a the second aperture of each of the aperture pairs of aperture sets and S2 being capable of conveying a gas from the first inner void 106 of said first vertically disposed hollow outer housing 102 to the second inner void 120a of said horizontally disposed housing 116a and 116b in a direction whereby a substantial portion of the gas stream (coming through tubing 8j5 [in Figure 5A] ) impinges upon said semiochemical-containing matrix 126; however, the semiochemical matrix may be supported in the gas transmission tubing as shown in Figure 5 where semiochemical matrix 127 , 127a , 127 , 127y , 127z and 127b are supported in tubing. The tubing can have a screen on its outer orifice (in the inner void of the horizontally disposed hollow housing 120a ) , the screen being indicated by reference numerals 198a and 198b; or the orifice may be protected by means of cotton plug 199a, 199b and 199c (shown in Figure 5). In the alternative the orifice of tube _88 may be protected from arthropods entering the inner void 106 using nylon mesh shown in use in Figure 5A with the nylon mesh being indicated by reference numeral 98.

Although shown to pierce the horizontally disposed hollow housing 116a and 116b, the radiation means 122a (e.g., light emitting diode) is preferably employed in back of the end surface plane 180 of horizontally disposed hollow housings 116a and 116b as shown in Figure 4A with the inner end of horizontally disposed hollow housing 116a and 116b being indicated by reference numeral 9_6 in Figure 4A. each of the apertures of said aperture set (114a and 114b) containing a tightly sealably-f itted radiation means (e.g., light emitting diode 122a ) which transmits insect attracting radiation to a location in the immediate vicinity of said semiochemical field trap 100; (6) at least one power supply means 130 (e.g., one or two batteries or a power supply means necessary to operate a laser diode shown by reference numeral 930 in Figure 10B) associated with trap 100 energizing the radiation means 122a and 124a; (7) air, 138 and/or carbon dioxide supply means 134 , 136 , for supplying air and/or carbon dioxide into said first inner void 106 via said vertically directed aperture 108 and then into said second inner void 120a via at least one of the apertures of aperture sets S1 and S2 (e.g., through tube 8_8, for example); whe r eby on engagement of the power supply means 130 with said radiation means 122a and 124a and operation of said air 138 and/or carbon dioxide supply means 134, 136 , arthropods 160 in the vicinity of said trap are attracted by the activated radiation means 124a associated with aperture set and the gas emanating from said horizontally disposed hollow housings 116a to a location so close to said trap 100 that in the event that an attracting semiochemical in said matrix 126 is detected by at least one of said arthropods 160 , said at least one of said arthropod 160 will enter the said inner void 120a of the horizontally disposed hollow housing 116a , 116b counter-current the gas stream emanating therefrom and remain permanently entrapped therein. The trapping means 140 facilitates trapping of the insects with the insects entering the horizontally disposed hollow housings 116a and 116b through orifice 246. Furthermore, carbon dioxide coming from carbon dioxide source I 134 (e.g., dry ice held in a zippered bag) travels through line 136 and mixes with air 138 at mixing center 140. Optionally, i trap 100 shown in Figure 3 and in Figure 2 may have a circular substantially planar shading means 132 extending substantially in the first "x-z" plane outwardly from the immediate vicinity of the circumference 144 of the first side wall upper terminal end .

The radiation means 124a preferably are located at a location in a "x-z" plane intermediate the radiation means 122a as shown in Figure 4.

As shown in Figure 8, the trapping means can be a sticky trapping means 140A located in plane 190 of the horizontally ~ disposed hollow housings 116a and 116b in Figures 2 and 3 or the horizontally disposed hollow housings 216a and 216b in Figure 10. The horizontally disposed hollow housings may have a screen 148 surrounding orifice 146 as shown in detail in Figure 9. Circuitry for the light emitting diode radiation means 122a and 124a shown in Figure 3 is shown in Figure 7 wherein the power supply means is shown by reference numeral 130a and the switch to engage the power supply means is shown by reference numeral 152a . The light emitting diodes 122a , 122b and the like are shown by reference numerals 12a, 12br 12c (for the LED) and 13a , 13b and 13c (for resistors associated with said LED ' s ) . The light emitting diode circuitry for LED 124a of set is shown by reference numerals 14a , 14b and 14c for the LED ' s and reference numerals 15a , 15b and 15c for resistors associated with said LED's.

With regard to that aspect of the present invention which is an alternative to the aforementioned embodiment, radiation pulsating means (e.g., such as that illustrated in Figures 22 and 24) are associated with the apparatus of Figures 2, 3, 4, 4A, 5, 5A and 6.

Hence, additional radiation means can be located within said vertically disposed inner void 106 for conveying insect attracting radiation through substantially each of said gas transmission apertures of aperture set (110a and 110b ) and/or aperture set S2 (112a and 112b) .

Furthermore, radiation pulsing means shown in Figures 22 or 24 is connected to any or all of the radiation means causing the insect attracting radiation to have a frequency mimicking insect wing beat and/or insect visual sensing frequencies.

Thus, referring to Figure 3, radiation pulsating means of Figure 22 can be located in inner void 106 emitting pulsating radiation through tubes 88_ into voids 120a and 120b. Thus, strobelight unit 1205 being held by holder 1209 contains strobelight tube 1203 connected via electronic components 1201 to power source 130. The strobelight tube 1203 emits pulsating radiation through holes 1207 and then through tube 88.

Figure 10 sets forth a second embodiment of the semio-chemical field trap 200 for blood feeding arthropods which is located in a 3-space defined by a vertical "y" axis and horizontal "x" and "z" axes each of which "x" and "z" axis is perpendicular to said "y" axis and each of which "x" and "z" axis is perpendicular to one another (with the axes shown in Figure 1A) comprising: (1) a first upright vertically-disposed hollow outer housing 202 having a vertical central axis parallel to and/or on said "y" axis, having an outer surface area Π9,487/2 d arthropod-impermeable side walls 204 encompassing r void 206, said housing: e wall upper terminal end ntial upper edge 244 ) located lane perpendicular to said st side wall lower terminal a second "x-z" plane perpendicular to said "y" axis oppositely juxtaposed with respect to said first side wall upper terminal end 245 ; (B) having a first upper arthropod-impermeable horizontal surface 243 located in said first "x-z" plane and being entirely contiguous with said upper first side wall terminal end 245 ; said upper horizontal surface 243 (i) being substantially perpendicular to the vertical "y" axis of said hollow outer housing 202 and (ii) ' having a first upper horizontal surface vertically directed aperture 208 of effective diameter therethrough; having a lower arthropod impermeable horizontal surface 277 located in said second "x-z" plane and being entirely contiguous with said first side wall lower terminal end 275 , said lower horizontal surface (i) being substantially perpendicular to the vertical axis of said first hollow outer housing 202 and (ii) having a lower horizontal surface vertically disposed aperture 271 of effective diameter therethrough wherein is substantially greater th'an having an upper ci rcumferentially disposed first outer housing section having outer surface area and a lower ci rcumferentially disposed first outer housing section having outer surface area with said lower first outer housing section having a first horizontally arranged set of apertures 210a therethrough and a second horizontally arranged set S2 of apertures 212a therethrough, each of the apertures of said set being located along a vertical directional vector parallel to the "y" axis and each of the apertures of set being located along said vertical directional vector parallel to the "y" axis thereby enabling an aperture 210a of aperture set to correspond with an aperture 212a of aperture set S forming a corresponding aperture pair with each of the apertures 210a and 212a being located along the same vertically disposed directional vector each aperture in said first set being located along the horizontally disposed directional vector v, being perpendicular to said "y" axis and said vertically disposed side walls; with J- V5r and each aperture 212a in said second aperture set S- being located in a directional vector fourth "x-z" plane, said directional vector being perpendicular to said "y" axis and said vertically disposed side walls 204, with the lower end of said upper outer housing section being the upper end of said lower outer housing section at a boundary located in a fifth "x-z" plane parallel to said first, second, third and fourth "x-z" plane; a second upright vertically disposed hollow inner housing 276 substantially coaxial with said first hollow outer housing 202 said inner housing 276 being partially circumscribed by said outer housing 202 ? (A) having an upper circumfer ent ially disposed outer section having area · located within said outer housing 202 ; a middle circumferent ially disposed outer housing section having area located immediately below the lower end of said outer housing, and a lower circumferentially disposed section having area located immediately below said middle section with the lateral boundary between said upper section and said middle section being located at boundary B2 in said second "x-z" plane, said lateral boundary B2 being coplanar with and parallel to said first side wall lower terminal end 275 ; (B) having rigid arthropod-impermeable second vertically disposed side walls 278 ; (C) having a second side wall upper terminal end 1275 located in said fifth "x-z" plane substan ially coplanar with said boundary B, ; having a second upper arthropod-impermeable horizontal surface 1243 located in said fifth "x-z" plane and being entirely contiguous with said second side wall upper terminal end 1275 , substantially coplanar with said boundary B^, said second upper horizontal surface 1243 being a finite distance below said first upper horizontal surface 243 , said second upper horizontal surface 1243 having a vertically directed aperture 1208 therethrough substantially coaxial with the vertical "y" axis of said second hollow inner housing 276 ; and having a third horizontally arranged set of apertures (indicated by reference numeral 214a ) at a location below and proximate said boundary B2, each aperture 214a in said third set being located along a directional vector in a sixth "x-z" plane, said directional vector being perpendicular to said "y" axis and said vertically disposed side walls 278 ; (F) the outer surface of said inner housing being sealably fitted at boundary within and circumferent ially contiguous with the inner circumferential edge of the lower horizontal surface vertically disposed aperture 271 of said hollow outer housing 202 ; extending outwardly from said first hollow outer housing 202 , a plurality of horizontally disposed hollow housings 216a and 216b, with each of said horizontally disposed hollow housings 216a and 216b; (A) having rigid arthropod (impermeable horizontally disposed side walls 218a; (B) encompassing and defining a second inner void 220a; (C) having a central axis located along a directional vector wherein is located in a seventh "x-z" plane with being perpendicular to said "y" axis; being substantially parallel to vector V, being substantially parallel to substantially perpendicular having a circumferential substantially vertically disposed outer terminal end 241 located in a first "y-x/z" plane; , ential substantially vertically disposed inner terminal end 296 oppositely juxtaposed to said vertically disposed outer terminal end 241 located in a second "y-x/z" plane, said inner terminal end 296 (i) being sealably contiguous with an outer surface section 242 of said lower first outer housing section 202 and (ii) circumscribing an aperture pair (indicated by reference numerals 210a and 212a; (F) having located in said second inner void 220a a fixedly-positioned gas stream-activa table semiochemical-containing matrix 226 comprising a porous containment agent containing in the interstices thereof at least one semiochemical sustainably releasable therefrom (with the matrix being supported by matrix support 228 extending from outer terminal end 2 1; and (G) having arthropod 260 entrapment means 240 (e.g., a sticky substance) located substantially within said second inner void 220a; (4) one aperture 210a or 212a of each of the aperture pairs S : j - 2 of aperture sets and S2 containing a tightly sealably fitted radiation means 222a (e.g., a light emitting diode or a laser diode) which effects , transmission of insect-attracting radiation to the interior 220a of said horizontally disposed hollow housing 216a , 216b ; the second aperture of each of the aperture pairs of aperture sets and S2 being capable of conveying a gas (e.g., through tube 288 protectively screened by nylon mesh 298) of said first vertically disposed hollow outer housing 202 to the second inner void 220a of said horizontally disposed outer housing 216a, 216b , in a direction whereby a substantial portion of the gas stream impinges upon said semio-chemical containing matrix 226 ; each of the apertures of said aperture set (indicated by reference numeral 214a ) containing a tighly sealably fitted radiation means 224a (e.g., a light emitting diode which may be blue light, green light or infra-red radiation) which transmits insect attracting radiation to a location in the immediate vicinity of said semiochemical field trap 200 ; a substantially vertically disposed drive shaft 272 coaxial with said "y" axis supported for rotary motion about its axis, extending from within said second upright vertically disposed hollow inner housing below the bottom at boundary B2 of said upright vertically disposed hollow outer housing 202 , through said vertically directed aperture 1208 of said second upper horizontal surface 1243 of said second upright vertically disposed hollow inner housing 276 , into said first inner void 206 of said first upright hollow outer housing 202 , along the longitudinal dimension of said second upright hollow inner housing 276 and along the longitudinal dimension of said first upright hollow outer housing 202 ; (7) motor means 270 connected to a first lower end of said drive shaft 272 for rotating said drive shaft 272 about its axis; (8) air flow creation means attached to a second upper end of said drive shaft (e.g., a propeller 274 ) , being of such a design whereby the rotation of said drive shaft 272 directly causes the rotation of said air flow creation means 274 and induces the flow of air downwardly through said first upper horizontal surface vertically directed aperture 208 into and through said first inner void 206 , and then through one aperture of each of said aperture pairs of aperture sets and S2 into and through each of said second inner voids 220a of each of said horizontally disposed hollow housings 216a , 216b; and at least one power supply means (e.g., batteries 230 ) associated with said trap 200 , energizing said radiation means 222a and 224a and said motor means 270 whe r eby on engagement of the power supply means 230 with said motor means 270 and said radiation means 222a and 224a , arthropods 260 in the vicinity of said trap 200 are attracted by the radiation means associated with aperture set S^, 224a and gas emanating from the outer terminal end 241 of said horizontally disposed hollow housings 216a , 216b to a location so close to said trap that in the event that an attracting semiochemical in said matrix 226 is detected by at least one of said arthropods 260 , said at least one arthropod will enter said second inner void 220a of said horizontally disposed hollow inner housing 216a, 216b counter-current to the gas stream emanating therefrom and remain permanently entrapped therein, e.g., using trapping means 240. The carbon dioxide source can be solid dry ice enclosed in a zippered bag as indicated by reference numeral 234 and may be passed through line 236 mixing with air coming from air line 238 at mixing point 240. The mixture of air and C02 is then passed into the first inner vertically disposed hollow housing void 206.

With regard to the present invention which is an improvement on the aforementioned Figure 10 embodiment, preferred embodiments of which are illustrated in Figures 17, 18, 19, 20, 21 and 23, radiation pulsating means (for example, as illustrated in Figures 22 and 24) are associated with such apparatus.

Hence, additional radiation means (2203 in Figure 17; 1203 in Figure 18; and 3201 and 3202 in Figure 19) can be located within said vertically disposed inner void 206 for conveying insect attracting radiation through substantially each of said gas transmission apertures of aperture set and/or aperture set S .

Fur thermore, radiation pulsing means shown in Figures 22 and 24 connected to one or more radiation means cause the insect attracting radiation to have a frequency mimicking insect wing beat frequencies and/or insect visual sensing frequencies .

More specifically, strobelight tube 2203 is located in closed box unit 2205 in Figure 17. The radiation therefrom is emitted through holes 2207 in the apparatus of Figure 17 (referred to as unit 2000 ) . The circuitry powering the strobelight tube is indicated by reference numeral 2201.

Figure 17 is also shown in detail by reference to Figure 21, the top cut-away view of Figure 17 taken along lines 21-21. Thus, the radiation emitted by strobelight tube 2203 through holes 2207 is emitted through tube 8_8 into the horizontally disposed hollow housing means 116a and 116b .

Strobelight tube 1203 located in strobelight unit 1205 in the apparatus of Figure 18 (indicated by reference numeral 1000 ) is shown in detail in Figure 22. Strobelight tube 1203 emits pulsating radiation as a result of pulsating radiation power emitted via electronic components 1201. The said pulsating radiation from strobelight tube 1203 is emitted through holes 1207. The strobelight box 1205 is affixed to the ceiling of unit 1000 via holders 1209. Simultaneously with the emission of pulsating radiation from strobelight unit 1205, gas through gas passages 1260 is forced into the horizontally disposed hollow outer housings.

Referring to Figure 19 which illustrates unit 3000 , the strobelight power unit is external to the vertically disposed hollow void. Circuitry and strobelight (combined) 3201 emits radiation through fiber optic assembly 3202 through connection 3212 into suspended ring light assembly 3216 wherefrom as shown in Figure 24, pulsating radiation is emitted through holes 3217 located in suspended ring 3216. The fiber optic strands are indicated by reference numerals 3212a and 3202 (on the outside of unit 3000 ) . Figure 23 is a cut-away top view of the apparatus of Figure 19 looking in the direction of the arrows 23-23. Thus, the radiation emitted from 3214b and 3214a passes through tubes 8_8 into the horizontally disposed hollow housing voids 116a and 116b .

Referring to Figure 20, (indicated by reference numeral 4000 ) , diode bulbs 4122a and 4122b are connected via electronic circuitry 4201 through wires 4250 to radiation pulsing means. Thus, instead of using an actual "strobelight" , the radiation pulsing means will cause radiation emitted from diodes 4122a and 4122b to pulse at specific frequencies between 50 and 400 Her z .

Optionally, trap 200 may have a circular substantially planar shading means 232 extending substantially in said first "x-z" plane outwardly from the immediate vicinity of the ci cumference 244 of said first side wall upper terminal end 245.

Figure 10A sets forth in detail a cut-away side elevation view of a horizontally disposed hollow outer housing embodiment useful with the apparatus of our invention as embodied in Figures 2, 3 and 10. In Figure 10A, gas emanating from tube 288 covered with mesh 298 impinges upon semiochemical containing matrix 226 which causes evolution of an attractant or a repellent. If an attractant is evolved, blood feeding arthropods 260 are attracted into the horizontally disposed I I ! housing. Radiation from LED 922a is emitted from behind inner || surface 296 of the horizontally disposed hollow housing with '! the inner surface 296 being translucent so that the radiation is diffused from the entire surface 296 into the inner void of the hollow outer housing. Radiation from LED 222a is emitted to further attract arthropods 260 into the area of the trap.

J Figure 10B shows in detail another embodiment of the I horizontally disposed hollow housing using instead of a LED a ij laser diode 922. Between the laser diode and the inner surface j! of the horizontally disposed hollow housing 997 is a diffusion lens 923 for the laser diode 922. The laser diode 922 is powered using power source 930 and laser circuitry 931. The laser diode preferably emits CC^ wave length radiation, e.g., approximately 960 nanometers. Air evolved from tube 988 j screened with nylon mesh screen 998 (to prevent arthropods from travelling through tube 988 from the inner void of the horizontally disposed housing impinges upon semiochemical- containing matrix 926. If a repellent is evolved from semiochemical matrix 926 , then arthropods are trapped in the hollow outer housing , for example, on sticky surface 940a.

Figures 11 and 12 set forth the circuitry for the motor ,· means and radiation means circuits for the apparatus of the embodiment of Figure 10. An embodiment shown in Figure 11 shows the use of two separate switches; whereby, switch 252b !; will cause the engagement of power with diodes 412a , 412b and 412c associated with resistors 413a, 413b and 413c, respec-ji tively. Switching on switch 252a will activate motor means i! 270b as well as diodes 312a, 312b, 312c, 312d, 312e and 312f ;! associated with resistors 313a, 313b, 313c, 313d , 313e and 313f . j ; ; ! i! !' ii The embodiment shown in Figure 12 shows the use of one switch 252 which will activate diodes 612a, 612b and 612c associated with resistors 613a , 613b and 613c as well as diodes 512a, 512b, 512c, 512d , 512e and 512f associated with resistors 513a , 513b, 513c, 513d , 513e and 513f , respectively, along with motor means 270a using power supply source 230a . The power supply source in Figure 11 is shown by reference numeral 230b .

The bar graph of Figure 13 shows the employment of the apparatus of Figure 10 in testing the attractancy or repellency of various materials. It is shown that the mixture of compounds having the structures: ί I repels mosquitoes as shown by a low mean of bar graph 803 ♦ This repellency is similar to the repellency effect on mosquitoes of bay leaf oil shown by bar graph 802. On the other hand bar graph 801 (for a 50:50 molermole mixture of C02 and air (at 2.71 gram moles C02 per hour feed rate)) shows attractancy for mosquitoes as do bar graphs 804 (lavender oil) and 805 (vetiver oil).

The data shown in Figure 13 is confirmed using a laboratory olfactometer of Figures 14 and 14A. This data is set forth in Figures 15 and 16. In Figure 15, Musca Domestica L.(Diptera Muscidae) is shown to be attracted by clean air (the graph indicated by reference numeral 811 ) and is shown to be repelled by the mixture of compounds having the structures: (shown by graph 813 ) and are shown to be repelled by bay leaf oil (as shown in the graph indicated by reference numeral 812 ) .

In Figure 16, clean air is shown to attract mosquitoes (as indicated by the graph indicated by reference numeral 821 ) .

The mixture of compounds having the structures: is shown to repel mosquitoes as indicated by the graph indicated by reference numeral 823. Bay leaf oil is also indicated to repel mosquitoes as indicated by the graph indicated by reference numeral 822.

The bar graph of Figure 35 shows the employment of the apparatus of Figure 17 in testing the attractancy or repellency of various materials. It is shown that the mixture of compounds having the structures: and ar graph 1804. It re: ar graph 1803. It re: repels mosquitoes as shown by a low mean of bar graph 1802. On the other hand bar graph 1801 (for a 50:50 mole:mole mixture of air and C02 with a feed rate of C02 being 2.71 gram moles ij per hour) shows attractancy for mosquitoes.

I ;' The data shown in Figure 35 is confirmed using a laboratory '· olfactometer of Figures 14 and 14A. This data is set forth in jj Figures 36A, 36Bf 37A, 37B, 38A and 38B. In Figure 36A Aedes ;; aegypti is shown to be attracted by clean air (the graph ! indicated by reference numeral 2801 and is shown to be repelled by the compound having the structure: and (shown by graph 2806.

In Figure 36B, Aedes aegypti is shown to be attracted by clean air (the graph indicated by reference numeral 2811 ) and is shown to be repelled over a period of six hours by the compound having the structure: (shown by the graph indicated by reference numeral 2813 ) and the mixture of compounds having the structures: (shown by the graph indicated by reference numeral 2815 ) .

In Figure 37A, Aedes aegypti is shown to be attracted by clean air (the graph indicated by reference numeral 3801 ) ; is shown to be repelled by the compound having the structure: (the graph indicated by reference numeral 3805 ) ; is shown to be repelled by the compound having the structure: (the graph indicated by reference numeral 3807 ) and is shown to be repelled by the mixture of compounds having the structures: (the graph indicated by reference numeral 3803 ) . In Figure 37B, Aedes aegypti is shown to be attracted by clean air (the graph indicated by reference numeral 3811) and is shown to be repelled by the mixture of compounds having the structures: (the graph indicated by reference numeral 3813); is shown to be repelled by the compound having the structure: (the graph indicated by reference numeral 3815 ) and is shown to be repelled by the compound having the structure: o (the graph indicated by reference numeral 3817 ) . In Figure 38A, Aedes aegypti is shown to be attracted by clean air (the graph indicated by reference numeral 4813 ) and is shown to be repelled by the compound having the structure: (the graph indicated by reference numeral 4811 ) . In Figure 38B, Aedes aegypti is shown to be attracted by clean air (the graph indicated by reference numeral 4803) and is shown to be repelled by the compound having the structure: (the graph indicated by reference numeral 4801). Π9.487/2 -85- The olfactometer illustrated in Figure 14 and the olfactometer section illustrated in Figure 14A are described in U.S. Letters Patent 4,748,860 issued on June 7 , 1988 the specification for which is incorporated herein by reference.

In Figure 14, air source 734 feeds air through line 735 through air distributors 736, 736a, et seq. onto base plate 717 containing insect landing sites 710, 710a, et seq. The base plate 7 7 is separated from the spacer plate 729 for the air lines 736, 736a, et seq. whereby the air lines 736 , 736a, et seq. are held in place at positions 731 and 731a. Air exits through l ne 733a using exhaust fan 733. The olfactometer is assisted with computer apparatus shown in schematic form and block flow diagram form using reference numerals 720, 721 ,. 723, 724 and 739 ■ Dampers 711 , 7 llg, et seq. hold base plate 717 in place hor zontally. When an insect lands on sensor landing site 7 0, 7 0a et seq. the landing is recorded electrically through a sensor shown in magnified form in Figure 14A.' The sensor landing site includes a transducer 713 and causes an electrical impulse to proceed through wire 7 8 and then through wire 719 to a multi-channel A-D converter 723 (using electric power source 739) which is associated w th program tape storage 724, printer 720 and digital computer which is associated with modem and main frame 721. Reference numeral 722 shows a "Faraday" cage completing the olfactometer circuit. The electical impulse thus effects a recording of data as set forth in Figures 15 and 16.

Figure 14A is a detailed section showing one specific landing site 710 of Figure 14 on which the insect lands if attracted by one of the alkyl cyclopentanone or phenylalkanol derivative-containing compositions of our invention taken alone or in admixture with the cycloalkanol derivative-containing composition containing compounds having the structures: j: or does not land if repelled by, for example, one of the alkyl !i cyclopentanone or phenylalkanol derivative-containing : i !j compositions of our invention having the structures: taken alone or in admixture with the mixture of compounds having the structures: which is also located at specific landing sites. At other landing sites nothing is located (and these are the "control" landing sites). At other sites, a second repellent can be located, e.g., the bay leaf oil or an attractant can be located. The olfactometer includes a base 781 on which the damper 711a, 711b, et seq. are located, namely base 781. Base plate 717 is preferably covered with a film such as SARAN WRAP ® 725 so that any insects that are attracted to the landing sites are not distracted to any other areas on base plate 717.

A preferred embodiment of our invention involves the use of articles set forth in Figures 25-34 which comprises first forming an ell ipsoidally-shaped detergent tablet 830 containing a solid plastic core 832 which can be fabricated from, for example, polyethylene, polypropylene, nylon or any polymer capable of having therein microvoids from which an insect repelling substance, e.g., the compound having the structure: and/or the compound having the structure: I will be controllably transported from the plastic core into and j through the soap cake over a reasonable period of time during ; the use of the soap cake (as when the user washes skin with j said soap cake); then applying the soap cake in a washing j procedure to skin, whereby subsequent to drying insects will be j repelled from the user as the result of carrying out the washing procedure. Such polymers can be microporous polymers ] such as those described in U.S. Patent No. 4,247,498 issued on January 27, 1981, the specification for which is incorporated herein by reference. Surrounding the central plastic core con-I taining insect repellent 832 is detergent 830 ' which is in the solid phase at ambient conditions, e.g., room temperature and atmospheric pressure. Examples of workable detergents 830 ' are "elastic" detergents such as those described in U.S. Patent No. 4,181,632 issued on January 1, 1980, the disclosure of which is incorporated herein by reference, or "transparent" soaps such as those set forth in U.S. Patent No. 4,165,293 issued on August 21, 1979, the disclosure of which is incorporated herein by reference. Other examples of the detergent 830 ' useful in our invention are those set forth as "variegated soaps" in Canadian Letters Patent No. 1,101,165 issued on May 19, 1981, the disclosure of which is incorporated herein by reference.

On use of the soap tablet 830 or detergent bar, the insect repellent agent, e.g., the compound having the structure: šnd ore 832 is transported at a core surface 831 through the the surface of the detergent and 836. of our invention may be of rectangular parallelpiped nd 31 containing solid lent located in solid rgent bar passes through at 31, detergent 838 and t 838 at, for example, locations 841 , 842 , 843 and 844. The environment surrounding the detergent bar on use thereof is then treated with insect repellent, e.g., the compound having the structure: o ; or the compound having the structure: ! i locations 841 , 842 , 843 and 844 , for example.

As shown in Figures 32, 33 and 34 the plastic core of the detergent tablet 830 may have a single finite void at its center 851 (of Figures 33 and 34) in which the insect repellent agent and optionally the aromatizing agent is contained. The plastic core then is a shell 848 having outer surface 852 (shown in Figures 33 and 34). The insect repellent agent (and optionally the aromatizing agent) contained in the void in the plastic core permeates through shell 848 , past surface 852 at a steady state, through the detergent 847 into the environment at, for example, 856 , 857 , 858 and 859.

In addition to the insect repellent contained in the core, e.g., core 839 or core void, the core can also contain other materials for therapeutic use, for example, bacter iostats , deodorizing agents and the like which are compatible with insect repellents such as the compound having the structure: f compounds of our invention. In the alternative, the plastic core of the detergent tablet of Figures 32, 33 and 34 may have an empty single finite void at its center 851 with the insect repellent contained in the shell 848.

At the end of the use of the detergent tablet (e.g., using it in a washing machine, for example) the hollow core or the solid core can be used as an insect repelling and aroma imparting or air freshener household article. In addition, depending on the ratio of the volume of the void 851 , to the solid part of the detergent tablet of Figures 32, 33 and 34, the detergent tablet of Figures 32, 33 and 34 can be so fabricated that it will float on the surface of the liquid in which it is being used and this physical attribute has certain obvious advantages. 119487/2 -99-

Claims (7)

1. A semiochemical field trap for blood feeding arthropods located in a 3-space defined by a vertical "y" axis and horizontal "x" and "z" axis each of which "x" and "z" axis is perpendicular to said "y" axis and each of which "x" and "z" axes is perpendicular to one another comprising: (1) upright vertically disposed hollow housing means: (A) having arthropod-impenetrable vertical side wall means defining a vertically disposed inner void; (B) having an upper terminal end means provided with gas entry means; (C) having and piercing said side wall means, at least two horizontally-disposed separate sets of apertures including an aperture set Si and an aperture set S2 with aperture set Si being vertically distant from, and substantially adjacent to aperture set S2; with apertures of aperture sets Si and S2 being gas transmission apertures containing gas transmission means and having radiation means sealably inserted therethrough; (2) horizontally disposed hollow housing means having an inner structure: (A) having substantially horizontally disposed arthropod-impenetrable side walls defining horizontally disposed inner void means; (B) having oppositely juxtaposed inner and outer open terminal end means; the inner terminal end means being circumferentially sealably contiguous with a portion of the outer surface of said vertical side wall means of said upright housing means which portion circumscribes a section of said vertical side wall means including at least one aperture of said Si and at least one aperture of said S2> one of said apertures being a gas transmission aperture containing gas transmission means and the other of said apertures having sealably contained therethrough radiation means; (C) having incorporated into the inner structure thereof, arthropod entrapment means; and (D) having sustainably releasable insect attractant or repellent semiochemical substance means located within (i) said horizontally disposed inner void means or (it) said gas transmission means; (3) gas transmission effecting means for causing conveyance of a gas through said gas entry means into and through said vertically disposed inner void, through a gas transmission aperture of aperture set Si, into and through said horizontally disposed inner void means and into the environment surrounding said field trap; (4) at least one power supply means associated with said trap at least energizing said radiation means; whereby on engagement of the power supply means with said radiation means and 1 19487/2 - 100- simultaneous activation of said gas transmission effecting means, blood feeding arthropods in the vicinity of said trap are attracted by (i) activated radiation emitted by said radiation means and/or (ii) gas emanating from the outer open terminal end means of said horizontally disposed hollow housing means to a location so close to said trap that in the event that an attracting semiochemical in said sustainably releasable substance means is detected and attracts at least one of said arthropods, said at least one of said arthropods will enter said horizontally disposed inner void means countercurrent to the flow of said emanating has and will remain permanently entrapped therein.

2. The semiochemical field trap for blood feeding arthropods located in a 3-space defined by a vertical "y" axis horizontal "x" and "z" axis, each of which "x" and "z" axis is perpendicular to said "y" axis and each of which "x" and "z" axes is perpendicular to one-another comprising: (1) upright vertically disposed hollow housing means: (A) having arthropod-impenetrable vertical side wall means defining a vertically disposed inner void; (B) having an upper terminal end means provided with gas entry means; (C) having, and piercing said side wall means, three horizontally-disposed separate sets of apertures, set S], set S2 and set S3 located in separate parallel "x-z" planes, set Si being in an upper level "x-z" plane; set S2 being in a middle level "x-z" plane; and set S3 being in a lower level "x-z" plane, with aperture set Si being vertically distant from, and substantially adjacent to aperture set S2; with apertures of aperture sets Si and S2 being gas transmission apertures or having radiation means sealably inserted therethrough and with aperture set S3 having radiation means sealably inserted therethrough; (2) horizontally disposed hollow housing means having an inner structure; (A) having substantially horizontally disposed arthropod impenetrable side walls defining horizontally disposed inner void means; (B) having oppositely juxtaposed inner and outer terminal end means; the inner end means being circumferential ly sealably contiguous with a portion of the outer surface of said vertical side wall means of said upright housing means, which portion circumscribes a section of said vertical side wall means including an aperture "Aw" of set Si and an aperture "A2i" of set S2, one of said apertures being a gas transmission aperture and the other of said apertures having sealably contained therethrough radiation means; an aperture of said aperture set S3 being below and in the 1 19487/2 -101 -proximity of the lowermost location of the circumference of said inner end means; (C) having incorporated into the inner structure thereof, arthropod entrapment means; and (D) having a sustainably releasable insect attractant or repellent semiochemical substance means located within said horizontally disposed inner void means; (3) gas transmission means for causing conveyance of a gas selected from the group consisting of air and carbon dioxide through said gas entry means, into and through said vertically disposed inner void, through a gas transmission aperture of aperture set Si, into and through said horizontally disposed inner void means and into the environment surrounding said field trap; (4) at least one power supply means associated with said trap at least energizing said radiation means; whereby on engagement of the power supply means with said radiation means and simultaneous activation of said gas transmission means, arthropods in the vicinity of said trap are attracted by (i) activated radiation emitted by said radiation means associated with aperture set S3 and/or (ii) gas emanating from the outer terminal end means of said horizontally disposed hollow housing means to a location so close to said trap that in the event that an attracting semiochemical in said sustainably releasable substance means is detected and attracts at least one of said arthropods, one or more attracted arthropods will enter said horizontally disposed inner void means counter-current to the flow of said emanating has and will remain permanently entrapped therein.

3. A semiochemical field trap for blood feeding arthropods of claim 1, located in a 3-space defined by a vertical "y" axis and horizontal "x" and "z" axis, each of which "x-z" axis is perpendicular to said "y" axis and each of which "x-z" axis is perpendicular to one another, comprising: (1) a first upright vertically disposed hollow outer housing having a vertical central axis parallel to and/or on said "y" axis, having an outer surface area AQ having substantially rigid arthropod-impermeable first vertically disposed side walls encompassing and defining a first inner void, said housing; (A) having a first side wall upper terminal end located in a first "x-z" plane perpendicular to said "y" axis and a first side wall lower terminal and located in a second "x-z" plane perpendicular to said "y" axis oppositely juxtaposed with respect to said first side wall upper terminal end; (B) having a first upper arthropod impermeable horizontal surface located in said first "x-z" plane and being entirely contiguous with said upper first side wall terminal end; said upper horizontal surface (i) being substantially perpendicular to the vertical "y" axis of said hollow outer housing and (ii) having a first upper horizontal surface vertically-directed aperture of effective 1 19487/2 - 102- diameter DH therethrough; (C) having a lower arthropod impermeable horizontal surface located in said second "x-z" plane and being entirely contiguous with said first side wall lower terminal end, said lower horizontal surface (i) being substantially perpendicular to the vertical axis of said first hollow outer housing and (ii) having a lower horizontal surface vertically disposed aperture of effective diameter D/ therethrough wherein D/ is substantially greater than D„ (D) having an upper circumferentially disposed first outer housing section having outer surface area Auo and a lower circumferentially disposed first outer housing section having outer surface area A/o with Ao = A o + Auo said lower first outer housing section having a first horizontally arranged set Si of apertures therethrough, and a second horizontally arranged set S2 of apertures therethrough, each of the apertures of said set Sj being located along a vertical directional vector vsj parallel to the "y" axis and each of the apertures of said set S2 being located along said vertical directional vector v parallel to the "y" axis thereby enabling an aperture of said aperture set Si to correspond with an aperture of aperture set S2 forming a corresponding aperture pair PPs:i-2 with each of the apertures being located along the same vertically disposed directional vector v each aperture in said first set Si being located along a horizontally disposed directional vector vi in a third "x-z" plane, said directional vector vi being perpendicular to said "y" axis and said vertically disposed side walls; with vilv¾ and each aperture in said second aperture set S2 being located in a directional vector 2 in a fourth "x-z" plane, said directional vector V2 being perpendicular to said "y" axis and said vertically disposed side walls, with V2±vSj the lower end of said upper outer housing section being the upper end of said lower outer housing section at a boundary "Bi" located in a fifth "x-z" plane parallel to said first, second, third and fourth "x-z" planes; (2) a second upright vertically disposed hollow inner housing substantially coaxial with said first hollow outer housing, said inner housing being partially circumscribed by said outer housing; (A) having an upper circumferentially disposed outer section having area A;,, located within said outer housing; a middle circumferentially disposed outer section having A;,„ located immediately below the lower end of said outer housing, and a lower circumferentially disposed section having area A,/ located immediately below said middle section with A, = A;„ + A / + AJm the lateral boundary between said upper section and said middle section being located at boundary B2 in said second "x-z" plane, said lateral boundary B2 being coplanar with and parallel to said first side wall lower terminal end; 1 19487/2 -103- (B) having rigid arthropod-impermeable second vertically disposed side walls; (C) having a second side wall upper terminal end located in said fifth "x-z" plane substantially coplanar with said boundary Bi; (D) having a second upper arthropod-impermeable horizontal surface located in said fifth "x- z" plane and being entirely contiguous with said second side wall upper terminal end, substantially coplanar with said boundary Bj, said upper horizontal surface being a finite distance below said first upper horizontal surface, said second upper horizontal surface having a vertically directed aperture therethrough substantially coaxial with the vertical "y" axis of said second hollow inner housing; (E) having a third horizontally arranged set of apertures S3 at a location below and proximate said boundary B2, each aperture in said third set S3 being located along a directional vector V3 in a sixth "x-y" plane, said directional vector V3 being perpendicular to said "y" axis and said vertically disposed side walls; and (F) the outer surface of said inner housing being sealably fitted within and circumferentially contiguous with the inner circumferential edge of the lower horizontal surface vertically disposed aperture of said hollow outer housing; (3) extending outwardly from said first hollow outer housing, a plurality of horizontally disposed hollow housings, with each of said horizontally disposed hollow housings: (A) having rigid arthropod-impermeable horizontally-disposed side walls; (B) encompassing and defining a second inner void; (C) having a central axis located along a directional vector VH wherein VH is located in a seventh "x-z" plane with VH being perpendicular to said "y" axis; VH being substantially parallel to vector vi VH being substantially parallel to v2 and VH being substantially perpendicular to ν*< (D) having a circumferential substantially vertically disposed outer terminal end located in a first "y-x/z" plane; (E) having a circumferential substantially vertically disposed inner terminal end oppositely juxtaposed to said vertically disposed outer terminal end located in a second "y-x/z" plane, said inner terminal end (i) being sealably contiguous with an outer surface section of said lower first outer housing section and (ii) circumscribing an aperture pair PPs: l.2 (F) having located in said second inner void a fixedly-positioned gas stream-activatable semiochemical-containing matrix comprising a porous containment agent containing in the interstices thereof at least one semiochemical sustainably releasable therefrom; and 1 19487/2 - 104- (G) having arthropod entrapment means located substantially within said second inner void; (4) one aperture of each of the aperture pairs PPs; i.2 of aperture sets Si and S2 containing a tightly sealably fitted radiation means which effects transmission of insect-attracting radiation to the interior of said horizontally disposed hollow housing; the second aperture of each of the aperture pairs PPs: i-2 of aperture sets Si and S2 being capable of conveying a gas from the said first inner void of said first vertically disposed hollow outer housing to the said second inner void of said horizontally disposed outer housing, in a direction whereby a substantial portion of the gas stream impinges upon said semiochemical-containing matrix; (5) each of the apertures of said aperture set S3 containing a tightly sealably fitted radiation means which transmits insect attracting radiation to a location in the immediate vicinity of said semiochemical field trap; (6) a substantially vertically disposed drive shaft coaxial with said "y" axis supported for rotary motion about its axis, extending from within said second upright vertically disposed hollow inner housing below the bottom, at boundary B2j of said upright vertically disposed hollow outer housing, through said vertically directed aperture of said second upper horizontal surface of said second upright vertically disposed hollow inner housing, into the said first inner void, of said first upright hollow outer housing, along the longitudinal dimension of said second upright hollow inner housing and along the longitudinal dimension of said first upright hollow outer housing; (7) motor means connected to a first lower end of said drive shaft for rotating said drive shaft about its axis; (8) air flow creation means attached to a second upper end of said drive shaft, being of such a design whereby the rotation of said drive shaft directly cause the rotation of said air flow creation means and induces the flow of air downwardly through said first upper horizontal surface vertically-directed aperture into and through said first inner void, and then through one aperture of each of said aperture pairs PPs; 1.2 of aperture sets Si and S2 into and through each of said second inner voids of each of said horizontally disposed hollow housings; and (9) at least one power supply means associated with said trap, energizing said radiation means and said motor means; whereby on engagement of the power supply means with said motor means and said radiation means, arthropods in the vicinity of said trap are attracted by the radiation means associated with aperture set S? and gas emanating from said outer terminal end of said horizontally disposed hollow housings to a location so close to said trap that in the event that an attracting semiochemical in said matrix is detected by at least one of said arthropods, said at least one 1 19487/2 - 105-arthropod will enter said second inner void of said horizontally disposed hollow inner housing counter-current to the gas stream emanating therefrom and remain permanently entrapped therein.

4. The semiochemical field trap for blood feeding arthropods of claim 1 located in a 3-space defined by a vertical "y" axis and horizontal "x" and "z" axis, each of which "x" and "y" axis is perpendicular to said "y" axis and each of which "x" and "z" axis is perpendicular to one another, comprising: (1) an upright vertically disposed hollow housing having a vertical central axis parallel to and one said "y" axis, having an outer surface area Ac having substantially rigid arthropod-impermeable vertically disposed side walls encompassing and defining a first inner void surrounded by said side walls and surrounding said "y" axis, said housing: (A) having a side wall upper terminal end located in a first "x-z" plane perpendicular to said V axis; (B) having an upper arthropod-impermeable horizontal surface located in said first "x-z" plane being entirely contiguous with said side wall upper terminal end, said upper horizontal surface (i) being substantially perpendicular to the vertical "y" axis of said hollow outer housing and (ii) having an upper horizontal surface vertically directed aperture therethrough; (C) having an upper circumferentially disposed outer housing section having outer surface area A„0 a middle circumferentially disposed outer housing section having outer surface area Amo and a lower circumferentially disposed outer housing section having outer surface area A/0 with A0=A/0+AW0+AU0 the lower end of said upper outer housing section having a circumferential boundary Bi with the upper end of said middle outer housing section; and the lower end of said middle outer housing section having a circumferential boundary B2 with the upper end .of said lower outer housing section; (D) said upper outer housing section having a first horizontally arranged set Si of apertures therethrough and a second horizontally arranged set S2 of apertures therethrough, each of the apertures of the set S i being located along a vertical directional vector v.y parallel to the "y" axis; each of the apertures of set S: being located along said vertical directional vector vsj thereby enabling an aperture of set S i to correspond with an aperture of set S2 forming a corresponding aperture pair PPS: 1.2 with each of said apertures being located along the same vertically disposed directional vector P each aperture in said first aperture set S i being located along a directional vector v i in a second ''x-z" plane with said directional vector vi being perpendicular to said "y" 1 19487 2 -106- axis and said vertically disposed side walls with v i±v, and each aperture in said second aperture set S2 being located in a directional vector V2 in a third "x-z" plane, said directional vector v∑ being perpendicular to said "y" axis and said vertically disposed side walls, with v2-Lv and v v2 (E) said middle outer housing section having a third horizontally arranged set of apertures S3 at a location below and proximate said boundary Bj, each aperture in said third aperture set S3 being located along a directional vector V 3 in a fourth "x-z" plane, said directional vector V3 being perpendicular to said "y" axis and said vertically disposed side walls; (2) extending outwardly from said first hollow outer housing, a plurality of horizontally disposed hollow housings, with each of said horizontally disposed hollow housings: (A) having rigid arthropod-impermeable substantially horizontally disposed side walls; (B) encompassing and defining a second inner void; (C) having a central axis located along a directional vector VH wherein VH is located in a fifth "x-z" plane with VH being perpendicular to said "y" axis; VH being substantially parallel to vi H being substantially parallel to i>2 and VH being substantially parallel to v (D) having a circumferential substantially vertically disposed outer terminal end located in a first "y-x/z" plane; (E) having a circumferentially substantially vertically disposed inner terminal end oppositely juxtaposed to said outer terminal end located in a second "y-x/z" plane, said inner terminal end (i) being circumferentially and sealably contiguous with an outer surface area section of said upper first outer housing section, and (ii) circumscribing an aperture pair PPs:i-2 and (F) having located in said second inner void a fixedly-positioned gas stream activatable semiochemical-containing matrix comprising a porous containment agent containing in the interstices thereof at least one semiochemical sustainably releasable therefrom; (4) one aperture of each of the aperture pairs PPs. i-2 of aperture sets S, and S2 containing a tightly sealably fitted radiation means which effects transmission of insect-attracting radiation to the interior of said horizontally disposed hollow housing; the second aperture of each of the aperture pairs PPs: 1.2 of aperture sets S| and S2 being capable of conveying a gas from the said first inner void of said first vertically disposed hollow outer housing to the said second inner void of said horizontally disposed housing in a direction whereby a substantial portion of the gas stream impinges upon said semiochemical-containing matrix; 119487/2 -107- (5) each of the apertures of said aperture set S3 containing a tightly sealably-fitted radiation means which transmits insect-attracting radiation to a location in the immediate vicinity of said semiochemical field trap; (6) at least one power supply means associated with said trap energizing said radiation means; and (7) air and/or carbon dioxide supply means for supplying air and/or carbon dioxide into said first inner void via said vertically directed aperture and then into said second inner void via at least one of the apertures of aperture sets Si and S ; whereby on engagement of the power supply means with said radiation means and operation of said air and/or carbon dioxide supply means, arthropods in the vicinity of said trap are attracted by the activated radiation means associated with aperture set S3 and the gas emanating from said horizontally disposed hollow housings, to a location so close to said trap that in the event that an attracting semiochemical in said matrix is detected by at least one of said arthropods, said at least one of said arthropods will enter said second inner void of said horizontally disposed hollow housing countercurrent the gas stream emanating therefrom and remain permanently entrapped therein.

5. The trap of claim 3 having a circular substantially planar shading means extending substantially in said first "x-z" plane outwardly from the immediate vicinity of the circumference of said first side wall upper terminal end.

6. The trap of claim 4 having a circular substantially planar shading means extending substantially in said first "x-z" plane outwardly from the immediate vicinity of the circumference of said first side wall upper terminal end

7. An insect repelling device as in any of claims 1-6, wherein the sustainably releasable insect attractant or repellant semiochemica] means includes a composition which is an alkylcycl pentanone or phenylalkanol or cycloalkanol derivative-containing composition which is the alternative : ( i ) ( ii ) and/or -109- (iii) a mixture of compounds having the structures: 109487/2 -πο· rises id matrix and f an insect or phenylalkanol ition having a ( iii ) a mixture of cycloalkanol derivatives having the structures : C: 26151