CA1095718A - Insect trap - Google Patents
Insect trapInfo
- Publication number
- CA1095718A CA1095718A CA281,710A CA281710A CA1095718A CA 1095718 A CA1095718 A CA 1095718A CA 281710 A CA281710 A CA 281710A CA 1095718 A CA1095718 A CA 1095718A
- Authority
- CA
- Canada
- Prior art keywords
- chimney
- insect
- heater
- pheromone
- trap
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M1/00—Stationary means for catching or killing insects
- A01M1/14—Catching by adhesive surfaces
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/002—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing a foodstuff as carrier or diluent, i.e. baits
- A01N25/006—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing a foodstuff as carrier or diluent, i.e. baits insecticidal
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M2200/00—Kind of animal
- A01M2200/01—Insects
- A01M2200/012—Flying insects
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Zoology (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Environmental Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Insects & Arthropods (AREA)
- Wood Science & Technology (AREA)
- Food Science & Technology (AREA)
- Dentistry (AREA)
- Toxicology (AREA)
- Plant Pathology (AREA)
- Agronomy & Crop Science (AREA)
- Catching Or Destruction (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
A B S T R A C T
An insect trap which comprises a chimney member adapted to allow a flow of air to be forced therethrough, a reservoir of insect attractant which under the influence of the flow of air is evaporated and borne as a stream of attractant vapour emanating from the chimney member into the surrounding atmosphere, and a tacky substance provided inside the chimney member which will trap flying insects lured therein by the stream of attractant vapour.
An insect trap which comprises a chimney member adapted to allow a flow of air to be forced therethrough, a reservoir of insect attractant which under the influence of the flow of air is evaporated and borne as a stream of attractant vapour emanating from the chimney member into the surrounding atmosphere, and a tacky substance provided inside the chimney member which will trap flying insects lured therein by the stream of attractant vapour.
Description
~9S718 The present invention relates to an insect trap and, more particu-larly, to a trap which lures the insects to a tacky substance within the trap.
Insect traps are known which employ attractants to draw the insects thereto and trap them by means of a sticky or tacky substance located in or on the trap.
It has been found that the efficiency of such traps can be consid-erably improved by ensuring that the attractant is forced into the immediate vicinity of the trap in a controlled manner.
Accordingly, the present invention provides an insect trap compris-ing a chimney member, a heater located underneath the base of the chimney member, a reservoir containing an insect pheromone located adjacent to and above the heater, and a tacky substance located inside the chimney member, whereby the heater evaporates the insect pheromone and generates a convection flow of air which carries the pheromone out of the top of the chimney and into the surrounding atmosphere and the insects thereby lured by the pheromone through the top of the chimney become trapped by the tacky substance.
;~ According to another aspect of the invention, there is provided a kit for assembly into an insect trap, said kit comprising a chimney member, a heater adapted to be located underneath the base of the chimney member, a reservoir containing an insect pheronome adapted to be located adjacent to and above the heater, and a tacky substance located inside the chimney mem-ber, whereby when assembled the heater evaporates the insect pheromone and generates a convection flow of air which carries the pheromone out of the top of the chimney and illtO the surrounding atmosphere and the insects there-by lured by the pheromone through the top of the chimney become trapped by the tacky substance.
In environmental terms the trap according to the invention is particularly advantageous because it succeeds in reducing substantially the flying insect population of a room or other enclosed area without the need ~L
l~9S7~8 of a chemical pesticide.
The essential feature of the insect trap according to the invention is the provision of a stream of insect attractant emanating from the trap and it has been found that, without this feature of forced convection, the effi-ciency in terms of the insects caught falls off dramatically. The flow of air forced through the chimney is achieved by means of a small ~95'718 heater which may be powered electrically; it has been found that a small electrically powered heater provided at the base of the chimney produces the desired effect, especially since the insect attractant reservoir, e.g., in the form of a solid disc or pellet, is placed adjacent thereto.
The chimney may be square, rectangular or circular in cross-section although other shapes may be employed if desired, e.g., bowl shape or plate, dish or tray shape. Both ends of the chimney are open or partially open so that a flow of air can be forced therethrough.
In addition to the tacky substance, the heater and the attractant may also be housed within the chimney but it has been found more convenient to mount one end of the chimney over a heater and place the insect attractant reservoir on the heater so that when the heater is in operation it produces convection air currents sufficient to produce the required flow of air and also assist in the evaporation of the attractant from the reservoir.
Better results may be obtained if the end of the chimney remote from the heater, i.e., the end from which the stream of attractant is emanating is provided with a re-entrant hole as flying insects, houseflies especially, find difficulty in escaping from such a chimney having once been lured therein.
A re-entrant generally conically shaped hole is particularly useful. The inside of the chimney is preferably light-coloured because flying insects prefer entering a light area as opposed to a dark area and further, the outside of the enclosure is preferably a warm or dark colour, i.e., a brown, red, black or similar colour as such colours attract flying insects.
There are many attractants which may be used to lure ~ 5'718 flying insects to the trap, ~or example;
(1) 1,3-propanediol, 1-(3,4-methylenedioxylphenyl)-2-phenyl-;
Insect traps are known which employ attractants to draw the insects thereto and trap them by means of a sticky or tacky substance located in or on the trap.
It has been found that the efficiency of such traps can be consid-erably improved by ensuring that the attractant is forced into the immediate vicinity of the trap in a controlled manner.
Accordingly, the present invention provides an insect trap compris-ing a chimney member, a heater located underneath the base of the chimney member, a reservoir containing an insect pheromone located adjacent to and above the heater, and a tacky substance located inside the chimney member, whereby the heater evaporates the insect pheromone and generates a convection flow of air which carries the pheromone out of the top of the chimney and into the surrounding atmosphere and the insects thereby lured by the pheromone through the top of the chimney become trapped by the tacky substance.
;~ According to another aspect of the invention, there is provided a kit for assembly into an insect trap, said kit comprising a chimney member, a heater adapted to be located underneath the base of the chimney member, a reservoir containing an insect pheronome adapted to be located adjacent to and above the heater, and a tacky substance located inside the chimney mem-ber, whereby when assembled the heater evaporates the insect pheromone and generates a convection flow of air which carries the pheromone out of the top of the chimney and illtO the surrounding atmosphere and the insects there-by lured by the pheromone through the top of the chimney become trapped by the tacky substance.
In environmental terms the trap according to the invention is particularly advantageous because it succeeds in reducing substantially the flying insect population of a room or other enclosed area without the need ~L
l~9S7~8 of a chemical pesticide.
The essential feature of the insect trap according to the invention is the provision of a stream of insect attractant emanating from the trap and it has been found that, without this feature of forced convection, the effi-ciency in terms of the insects caught falls off dramatically. The flow of air forced through the chimney is achieved by means of a small ~95'718 heater which may be powered electrically; it has been found that a small electrically powered heater provided at the base of the chimney produces the desired effect, especially since the insect attractant reservoir, e.g., in the form of a solid disc or pellet, is placed adjacent thereto.
The chimney may be square, rectangular or circular in cross-section although other shapes may be employed if desired, e.g., bowl shape or plate, dish or tray shape. Both ends of the chimney are open or partially open so that a flow of air can be forced therethrough.
In addition to the tacky substance, the heater and the attractant may also be housed within the chimney but it has been found more convenient to mount one end of the chimney over a heater and place the insect attractant reservoir on the heater so that when the heater is in operation it produces convection air currents sufficient to produce the required flow of air and also assist in the evaporation of the attractant from the reservoir.
Better results may be obtained if the end of the chimney remote from the heater, i.e., the end from which the stream of attractant is emanating is provided with a re-entrant hole as flying insects, houseflies especially, find difficulty in escaping from such a chimney having once been lured therein.
A re-entrant generally conically shaped hole is particularly useful. The inside of the chimney is preferably light-coloured because flying insects prefer entering a light area as opposed to a dark area and further, the outside of the enclosure is preferably a warm or dark colour, i.e., a brown, red, black or similar colour as such colours attract flying insects.
There are many attractants which may be used to lure ~ 5'718 flying insects to the trap, ~or example;
(1) 1,3-propanediol, 1-(3,4-methylenedioxylphenyl)-2-phenyl-;
(2) 3-cyclohexene~l-carboxylic acid, 6-methyl, 2-methyl-pentyl ester;
(3) 4,7-methanoinden-6-ol-3a,4,5,6,7,7a-hexahydro-,formate
(4) m-toluic acid, 2-methoxyethyl ester;
(5) m-toluic acid, 2-(2-butoxyethoxy)ethyl ester;
(6) pyran, tetrahydro-2-(2-propynyloxy);
(7) Staley's* Bait No. 2;
(8) Staley's* Bait No. 7; and
(9) feather meal hydrolysate *Trademark ~9S71~3 There are also the naturally occurring pheromones and the following list gives the most important of these together with the species of insect which is affected.
Chemical name Insect affected . _ . . ~ .
4-(p-hydroxypnenyl)-2-butanone melon fly, Dacus cucurbattae acetate (Coquillett) cis-7,8-epoxy-2-methylocta- gypsy moth, Porthetria decane dispar (L~
(Z)-7-hexadecen-o-ol acetate pink bollworm, Pectinophora . gossypiella (Saunders) (Z)-7-dodecen-1-ol acetate cabbage looper, Trichoplusia ni (Hubner) (Z)-7-dodecen-l~ol cabbage looper 4-allyl-1,2-dimethoxy oriental fruit fly, Dacus benzene dorsalis (Hendel) (Z)-9-tricosene housefly, Musca domestica (L) phenethylpropionate + Japanese beetle, opi.llia eugenol (7 : 3) japonica (Newman) tert.-butyl-4-(or 5)-chloro- Mediterranen fruit fly, 2-methylcyclohexane Ceratitis capitata carboxylate (Weidemann) . . _ _ ._ ~ther compounds that have been shown to be attractive to houseflies can be grouped into the following classes:-~' ~S '' `` 1095718 (1) Products of putrefaction (mainly amines);(2) Products of fermentation (aldehydes, ketones and alcohols);
(3) Simple carbohydrates (mono- and di~saccharides);
(4) Esters.
Some of the more effective attractants within these four classes are : skatole, indole, ammonium hydroxide, maltose, acetophenone, benzyl alcohol, pyridine, thymol, dioctyl phthalate, glycerol dioleate, o-mono-oleate, 'Jasmyn'*, 'Radoxane'*, 'Herboxane'*.
For the purposes of trapping the common housefly, Musca domestica, the Applicant has found that muscalure ((Z)-9-tricosene) or a mixture of that compound with (Z)-9-heneicosene works very effectively in the trap according to the invention.
The reservoir for the attractant may take a wide variety of forms, for example it may be in liquid form in a container or alternatively it may be in solid form, for example, dispersed in cellulose or mineral absorbents. However, a simple effective reservoir consists of a porous material such as filter paper or blotting paper which is impregnated with the desired attractant and, generally speaking, when discs of paper of about 1 inch diameter are used loadings of about 0.5-150 mg of attractant have been found to give the desired result. If desired, stabili-zation of the attractant may be achieved by incorporating an anti-oxidant into the reservoir.
*Trademark ,~
-7 10957~8 The tacky substance which traps the flying insects must clearly be a substance which maintains its tackiness over prolonged periods of time and examples of such substances are solutions of gum, rubber and mineral oil~ polybutenes, and mixtures of wax and resins.
The invention will now be further described with refer-ence to the accompanying drawings, in which:
Figure 1 is a perspective view of one embodiment of an insect trap according to the invention;
Figure 2 is a perspective view of a heater unit to-gether with an attractant reservoir for the trap shown in Figure 1;
Figure 3 is a perspective view of a further embodiment of an insect trap according to the invention.
The insect trap shown in Figures 1 and 3 and partly in Figure 2 comprises an electrically-powered heater unit 1, a cylindrical bowl-type enclosure or chimney 2, an insect attractant reservoir 3 and an inner sleeve 4 bearing a tacky substance (not shown) for trapping flying insects entering the bowl-type enclosure or chimney 2.
The heater unit 1 comprises an electrical element (not shown) housed in a casing 5 which is provided with a number of slots 6 and above the element a grid 7 on which is placed the insect attractant reservoir 3 in the form of a round disc made from absorbent paper and impregnated with an insect attractant. Protrudirlg from ~5718 the top of the casing 5 are two lugs 8 and 9 for locating the chimney 2 in the correct position on the heater unit.
The chimney 2 as shown in Figure 1 is rectangular in cross-section fully open at the base and provided with a re-entrant generally conically-shaped hole 10 at the top. A bowl-type equivalent of the chimney 2 is shown in Figure 3. Inside the chimney 2 is an inner sleeve 4 which supports the tacky sub-stance (not shown); the sleeve itself may be ree-standing, i.e., supported on the grid 7, or may be clipped or otherwise fixed to the chimney 2.
When the current is switched on and the heater unit 1 is warm a forced air draught is generated by air passing through the slots 6, through the grid 7, over the insect attractant reservoir 3, through the chimney 4 and, according to Figure 1, out through the hole 10 into the surrounding atmosphere. Insect attractant vapour is taken with the air draught to form a stream of attractant vapour emanating from the top of the chimney 2.
Flying insects of the type attracted to the particular attractant employed in the reservoir are lured to the trap, enter through the re-entrant hole 10, and are trapped by the tacky substance (glue: HYVIS-200*) on the inner sleeve 4. Using a bowl-type modified structure as shown in Figure 3, the forced air draught is generated by air passing over the bowl 4 and into the surrounding atmosphere. Insect attractant vapour is taken with the air draught to form *Trademark 10957~8 a stream of attractant vapour emanating from the upper end of the bowl.
Flying insects of the type attracted to the particular attractant employed in the reservoir are lured to the trap, and are trapped by the tacky sub- -stance on the inner sleeve 4.
In the embodiment shown in the drawings the tacky substance is mounted on the inner sleeve and it has been found convenient to make this sleeve of a disposable material so that when it is fully loaded with dead flies it can be discarded and replaced by a fresh sleeve. It will also be appreciated that the sleeve may be of any convenient configuration and in-deed could even take the shape of a flat sheet, if desired. In an alterna-tive embodiment where an inner sleeve is not re~uired the tacky substance can be mounted on the interior of the chimney and the chimney itself can be made of disposable material so that it also can be discarded and replaced with a fresh chimney when fully loaded.
In further alternative embodiments the chimney, or when used the inner sleeve, can have the insect attractant reservoir incorporated therein either in the sleeve or chimney or supported across the base of the sleeve or chimney so that it is positioned adjacent or close to the heater unit.
The insect trap according to the invention may in practice be sold as a kit.
As has been indicated above flying insects prefer entering a light area as opposed to a dark area and thus the chimney and interior sleeve could be made of transparent material. However, for aesthetic reasons, ~ 095718 this is not an attractive design and the chimney is preferably made from opaque material, the outside being warm- or dark-coloured and the interior (as well as the interior sleeve if present) being light in colour. Further, the base of the chimney can be made of transparent material so as to illuminate the chimney interior. Alternatively, the heater unit may either be fabricated from transparent or light-coloured material or have disposed around and above a gridlthetransparent wall which co-operates with the chimney and thus effectively produces a transparent base to the chimney.
As also stated above one important advantage of the present trap is the fact that it avoids the use of a chemical pesticide and relies on the tacky substance trapping and killing the flying insect. However, it may be desirable in certain circumstances to employ a pesticide inside the chimney in addition to the tacky substance and the invention also includes a trap con-taining such a pesticide for the flying insects trapped.
The action of the insect trap according to the in-vention will now be illustrated by reference to the following test:
The insect trap shown in Figures 1 and 2 of the drawings was placed in a 28 m3 room maintained at 23C
(+ 2C), 60% t+ 5%) relative humidity and ventilated at 3 air changes per hour. The attractant employed was ~ 10S~57~8 a 7:3 weight mixture of (Z)-9-tricosene and (Z)-9-heneicosene which is an attractant for houseflies ~u~ca domestica) and a filter paper pad was loaded with 10 mg of this mixture, this pad then representing the attractant reservoir.
The trap was placed on a transparent table top 0.7 m above floor level and a number of free flying 2-3 day old milk-fed houseflies of mixed sexes was introduced into the room. The numbers of free-flying and trapped flies were counted and sexed thr~e hours after the introduction of flies to the room and this procedure was repeated a number of times. The results are shown in the following Table.
Trent flies used Catch (%) after 3 hours j Room Male Female Male Female Total ature _. _ , 1 15 4 60 25 53 24.0 2 11 9 100 56 80 25.2 3 19 1 84 100 85 2l~.0 4 14 8 100 25 73 25.0 1013 100 69 83 23.5 6 19 3 84 33 77 20.3 7 16 7 81 29 65 20.2 percentage catch of total flies used - 86 47 73 23.2 , . _ ~ lass7l~
It will be seen from the above results that an aver-age of more than 70% of the free-flying house-fly population was successfully caught by the trap. This compares with a 9% catch when no attractant is used, and a nil catch when the heater is not in operation.
Chemical name Insect affected . _ . . ~ .
4-(p-hydroxypnenyl)-2-butanone melon fly, Dacus cucurbattae acetate (Coquillett) cis-7,8-epoxy-2-methylocta- gypsy moth, Porthetria decane dispar (L~
(Z)-7-hexadecen-o-ol acetate pink bollworm, Pectinophora . gossypiella (Saunders) (Z)-7-dodecen-1-ol acetate cabbage looper, Trichoplusia ni (Hubner) (Z)-7-dodecen-l~ol cabbage looper 4-allyl-1,2-dimethoxy oriental fruit fly, Dacus benzene dorsalis (Hendel) (Z)-9-tricosene housefly, Musca domestica (L) phenethylpropionate + Japanese beetle, opi.llia eugenol (7 : 3) japonica (Newman) tert.-butyl-4-(or 5)-chloro- Mediterranen fruit fly, 2-methylcyclohexane Ceratitis capitata carboxylate (Weidemann) . . _ _ ._ ~ther compounds that have been shown to be attractive to houseflies can be grouped into the following classes:-~' ~S '' `` 1095718 (1) Products of putrefaction (mainly amines);(2) Products of fermentation (aldehydes, ketones and alcohols);
(3) Simple carbohydrates (mono- and di~saccharides);
(4) Esters.
Some of the more effective attractants within these four classes are : skatole, indole, ammonium hydroxide, maltose, acetophenone, benzyl alcohol, pyridine, thymol, dioctyl phthalate, glycerol dioleate, o-mono-oleate, 'Jasmyn'*, 'Radoxane'*, 'Herboxane'*.
For the purposes of trapping the common housefly, Musca domestica, the Applicant has found that muscalure ((Z)-9-tricosene) or a mixture of that compound with (Z)-9-heneicosene works very effectively in the trap according to the invention.
The reservoir for the attractant may take a wide variety of forms, for example it may be in liquid form in a container or alternatively it may be in solid form, for example, dispersed in cellulose or mineral absorbents. However, a simple effective reservoir consists of a porous material such as filter paper or blotting paper which is impregnated with the desired attractant and, generally speaking, when discs of paper of about 1 inch diameter are used loadings of about 0.5-150 mg of attractant have been found to give the desired result. If desired, stabili-zation of the attractant may be achieved by incorporating an anti-oxidant into the reservoir.
*Trademark ,~
-7 10957~8 The tacky substance which traps the flying insects must clearly be a substance which maintains its tackiness over prolonged periods of time and examples of such substances are solutions of gum, rubber and mineral oil~ polybutenes, and mixtures of wax and resins.
The invention will now be further described with refer-ence to the accompanying drawings, in which:
Figure 1 is a perspective view of one embodiment of an insect trap according to the invention;
Figure 2 is a perspective view of a heater unit to-gether with an attractant reservoir for the trap shown in Figure 1;
Figure 3 is a perspective view of a further embodiment of an insect trap according to the invention.
The insect trap shown in Figures 1 and 3 and partly in Figure 2 comprises an electrically-powered heater unit 1, a cylindrical bowl-type enclosure or chimney 2, an insect attractant reservoir 3 and an inner sleeve 4 bearing a tacky substance (not shown) for trapping flying insects entering the bowl-type enclosure or chimney 2.
The heater unit 1 comprises an electrical element (not shown) housed in a casing 5 which is provided with a number of slots 6 and above the element a grid 7 on which is placed the insect attractant reservoir 3 in the form of a round disc made from absorbent paper and impregnated with an insect attractant. Protrudirlg from ~5718 the top of the casing 5 are two lugs 8 and 9 for locating the chimney 2 in the correct position on the heater unit.
The chimney 2 as shown in Figure 1 is rectangular in cross-section fully open at the base and provided with a re-entrant generally conically-shaped hole 10 at the top. A bowl-type equivalent of the chimney 2 is shown in Figure 3. Inside the chimney 2 is an inner sleeve 4 which supports the tacky sub-stance (not shown); the sleeve itself may be ree-standing, i.e., supported on the grid 7, or may be clipped or otherwise fixed to the chimney 2.
When the current is switched on and the heater unit 1 is warm a forced air draught is generated by air passing through the slots 6, through the grid 7, over the insect attractant reservoir 3, through the chimney 4 and, according to Figure 1, out through the hole 10 into the surrounding atmosphere. Insect attractant vapour is taken with the air draught to form a stream of attractant vapour emanating from the top of the chimney 2.
Flying insects of the type attracted to the particular attractant employed in the reservoir are lured to the trap, enter through the re-entrant hole 10, and are trapped by the tacky substance (glue: HYVIS-200*) on the inner sleeve 4. Using a bowl-type modified structure as shown in Figure 3, the forced air draught is generated by air passing over the bowl 4 and into the surrounding atmosphere. Insect attractant vapour is taken with the air draught to form *Trademark 10957~8 a stream of attractant vapour emanating from the upper end of the bowl.
Flying insects of the type attracted to the particular attractant employed in the reservoir are lured to the trap, and are trapped by the tacky sub- -stance on the inner sleeve 4.
In the embodiment shown in the drawings the tacky substance is mounted on the inner sleeve and it has been found convenient to make this sleeve of a disposable material so that when it is fully loaded with dead flies it can be discarded and replaced by a fresh sleeve. It will also be appreciated that the sleeve may be of any convenient configuration and in-deed could even take the shape of a flat sheet, if desired. In an alterna-tive embodiment where an inner sleeve is not re~uired the tacky substance can be mounted on the interior of the chimney and the chimney itself can be made of disposable material so that it also can be discarded and replaced with a fresh chimney when fully loaded.
In further alternative embodiments the chimney, or when used the inner sleeve, can have the insect attractant reservoir incorporated therein either in the sleeve or chimney or supported across the base of the sleeve or chimney so that it is positioned adjacent or close to the heater unit.
The insect trap according to the invention may in practice be sold as a kit.
As has been indicated above flying insects prefer entering a light area as opposed to a dark area and thus the chimney and interior sleeve could be made of transparent material. However, for aesthetic reasons, ~ 095718 this is not an attractive design and the chimney is preferably made from opaque material, the outside being warm- or dark-coloured and the interior (as well as the interior sleeve if present) being light in colour. Further, the base of the chimney can be made of transparent material so as to illuminate the chimney interior. Alternatively, the heater unit may either be fabricated from transparent or light-coloured material or have disposed around and above a gridlthetransparent wall which co-operates with the chimney and thus effectively produces a transparent base to the chimney.
As also stated above one important advantage of the present trap is the fact that it avoids the use of a chemical pesticide and relies on the tacky substance trapping and killing the flying insect. However, it may be desirable in certain circumstances to employ a pesticide inside the chimney in addition to the tacky substance and the invention also includes a trap con-taining such a pesticide for the flying insects trapped.
The action of the insect trap according to the in-vention will now be illustrated by reference to the following test:
The insect trap shown in Figures 1 and 2 of the drawings was placed in a 28 m3 room maintained at 23C
(+ 2C), 60% t+ 5%) relative humidity and ventilated at 3 air changes per hour. The attractant employed was ~ 10S~57~8 a 7:3 weight mixture of (Z)-9-tricosene and (Z)-9-heneicosene which is an attractant for houseflies ~u~ca domestica) and a filter paper pad was loaded with 10 mg of this mixture, this pad then representing the attractant reservoir.
The trap was placed on a transparent table top 0.7 m above floor level and a number of free flying 2-3 day old milk-fed houseflies of mixed sexes was introduced into the room. The numbers of free-flying and trapped flies were counted and sexed thr~e hours after the introduction of flies to the room and this procedure was repeated a number of times. The results are shown in the following Table.
Trent flies used Catch (%) after 3 hours j Room Male Female Male Female Total ature _. _ , 1 15 4 60 25 53 24.0 2 11 9 100 56 80 25.2 3 19 1 84 100 85 2l~.0 4 14 8 100 25 73 25.0 1013 100 69 83 23.5 6 19 3 84 33 77 20.3 7 16 7 81 29 65 20.2 percentage catch of total flies used - 86 47 73 23.2 , . _ ~ lass7l~
It will be seen from the above results that an aver-age of more than 70% of the free-flying house-fly population was successfully caught by the trap. This compares with a 9% catch when no attractant is used, and a nil catch when the heater is not in operation.
Claims (4)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. An insect trap comprising a chimney member, a heater located underneath the base of the chimney member, a reservoir containing an insect pheromone located adjacent to and above the heater, and a tacky substance located inside the chimney member, whereby the heater evaporates the insect pheromone and generates a convection flow of air which carries the pheromone out of the top of the chimney and into the surrounding atmosphere and the insects thereby lured by the pheromone through the top of the chimney become trapped by the tacky substance.
2. An insect trap as claimed in claim 1, wherein the insect pheromone is (Z)-9-tricosene or a mixture of (Z)-9-tricosene and (Z)-9-heneicosene.
3. An insect trap as claimed in claim 1 or 2 wherein the heater is electrically powered.
4. A kit for assembly into an insect trap, said kit comprising a chimney member, a heater adapted to be located underneath the base of the chimney member, a reservoir containing an insect pheromone adapted to be located adjacent to and above the heater, and a tacky substance located inside the chimney member, whereby when assembled the heater evaporates the insect pheromone and generates a convection flow of air which carries the pheromone out of the top of the chimney and into the surrounding atmosphere and the insects thereby lured by the pheromone through the top of the chimney become trapped by the tacky substance.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB30818/76 | 1976-07-23 | ||
| GB30813/76A GB1577333A (en) | 1976-07-23 | 1976-07-23 | Insect trap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1095718A true CA1095718A (en) | 1981-02-17 |
Family
ID=10313626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA281,710A Expired CA1095718A (en) | 1976-07-23 | 1977-06-29 | Insect trap |
Country Status (21)
| Country | Link |
|---|---|
| JP (2) | JPS5317173A (en) |
| AT (1) | AT367961B (en) |
| AU (1) | AU511536B2 (en) |
| BE (1) | BE857030A (en) |
| CA (1) | CA1095718A (en) |
| CH (1) | CH638950A5 (en) |
| DE (1) | DE2733033A1 (en) |
| DK (1) | DK155411C (en) |
| ES (1) | ES460907A1 (en) |
| FI (1) | FI61605C (en) |
| FR (1) | FR2358830A1 (en) |
| GB (1) | GB1577333A (en) |
| IE (1) | IE45531B1 (en) |
| IT (1) | IT1081145B (en) |
| LU (1) | LU77813A1 (en) |
| NL (1) | NL7708114A (en) |
| NO (1) | NO772599L (en) |
| NZ (1) | NZ184702A (en) |
| PT (1) | PT66836B (en) |
| SE (1) | SE432174B (en) |
| ZA (1) | ZA774407B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3316045A1 (en) * | 1983-05-03 | 1984-11-08 | Willi 6909 Mühlhausen Reiß | Mosquito trap |
| US4817868A (en) * | 1987-06-05 | 1989-04-04 | Dow Corning Corp. | Carrier for scented material |
| WO1989012389A1 (en) * | 1988-06-22 | 1989-12-28 | Edward Albert Williams | Insect exterminator |
| BE1005772A3 (en) * | 1992-04-28 | 1994-01-25 | Noviplast B V | Device for catching insects and the attractant used for the purpose |
| DE4226674A1 (en) * | 1992-08-12 | 1994-02-17 | Bayer Ag | Insect control methods and insecticides |
| IL122306A0 (en) * | 1997-11-26 | 1998-04-05 | Trapomoss Ltd | Insect trap |
| CN106561592A (en) * | 2016-11-07 | 2017-04-19 | 广州翼鲲植物保护有限公司 | Electric heating cockroach trapping device |
| CN106942178A (en) * | 2017-04-21 | 2017-07-14 | 佛山市顺德区微格电器有限公司 | Generate heat micro- evaporation mosquito killer |
| DE102020121050A1 (en) | 2020-08-11 | 2022-02-17 | Paul Gröne GmbH Kunststoffbe- und verarbeitung | Agents and methods for controlling insects, preferably caterpillars |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR374224A (en) * | 1907-01-26 | 1907-06-07 | Jacques Levy Et Cie | Fly trap |
| DE369389C (en) * | 1919-06-17 | 1923-02-19 | Paul Ernst May | Collapsible fly catcher |
| US1511682A (en) * | 1921-01-25 | 1924-10-14 | Frank F Skelly | Flytrap |
| BE758065A (en) * | 1969-10-28 | 1971-04-27 | Minnesota Mining & Mfg | INSECT TRAPPING DEVICE |
| US3708908A (en) * | 1970-06-22 | 1973-01-09 | Days Ease Home Prod Corp | Insect trap |
| GB1320988A (en) * | 1971-04-27 | 1973-06-20 | Nederlandse Appl Scient Res | Pheromone |
| CA964059A (en) * | 1973-03-29 | 1975-03-11 | John Weatherston | Insect trap |
-
1976
- 1976-07-23 GB GB30813/76A patent/GB1577333A/en not_active Expired
-
1977
- 1977-06-29 CA CA281,710A patent/CA1095718A/en not_active Expired
- 1977-07-21 NO NO772599A patent/NO772599L/en unknown
- 1977-07-21 AU AU27203/77A patent/AU511536B2/en not_active Expired
- 1977-07-21 PT PT66836A patent/PT66836B/en unknown
- 1977-07-21 AT AT0529177A patent/AT367961B/en not_active IP Right Cessation
- 1977-07-21 JP JP8675777A patent/JPS5317173A/en active Pending
- 1977-07-21 DE DE19772733033 patent/DE2733033A1/en not_active Ceased
- 1977-07-21 ZA ZA00774407A patent/ZA774407B/en unknown
- 1977-07-21 ES ES460907A patent/ES460907A1/en not_active Expired
- 1977-07-21 FR FR7722435A patent/FR2358830A1/en active Granted
- 1977-07-21 NL NL7708114A patent/NL7708114A/en active Search and Examination
- 1977-07-21 DK DK331277A patent/DK155411C/en not_active IP Right Cessation
- 1977-07-21 IE IE1520/77A patent/IE45531B1/en unknown
- 1977-07-21 SE SE7708389A patent/SE432174B/en not_active IP Right Cessation
- 1977-07-21 FI FI772245A patent/FI61605C/en not_active IP Right Cessation
- 1977-07-21 IT IT25986/77A patent/IT1081145B/en active
- 1977-07-21 LU LU77813A patent/LU77813A1/xx unknown
- 1977-07-21 NZ NZ184702A patent/NZ184702A/en unknown
- 1977-07-21 CH CH909377A patent/CH638950A5/en not_active IP Right Cessation
- 1977-07-22 BE BE179537A patent/BE857030A/en not_active IP Right Cessation
-
1987
- 1987-01-26 JP JP1987008760U patent/JPS62125477U/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62125477U (en) | 1987-08-10 |
| FI61605C (en) | 1982-09-10 |
| ATA529177A (en) | 1982-01-15 |
| ES460907A1 (en) | 1979-06-01 |
| FI772245A (en) | 1978-01-24 |
| PT66836A (en) | 1977-08-01 |
| AU511536B2 (en) | 1980-08-21 |
| LU77813A1 (en) | 1978-02-02 |
| NZ184702A (en) | 1980-02-21 |
| SE7708389L (en) | 1978-01-24 |
| IE45531B1 (en) | 1982-09-22 |
| FR2358830A1 (en) | 1978-02-17 |
| NL7708114A (en) | 1978-01-25 |
| ZA774407B (en) | 1978-06-28 |
| AT367961B (en) | 1982-08-25 |
| FR2358830B1 (en) | 1982-01-29 |
| JPS5317173A (en) | 1978-02-16 |
| PT66836B (en) | 1978-12-27 |
| CH638950A5 (en) | 1983-10-31 |
| DK331277A (en) | 1978-01-24 |
| FI61605B (en) | 1982-05-31 |
| DK155411C (en) | 1989-10-23 |
| DE2733033A1 (en) | 1978-02-02 |
| IE45531L (en) | 1978-01-23 |
| AU2720377A (en) | 1979-01-25 |
| IT1081145B (en) | 1985-05-16 |
| GB1577333A (en) | 1980-10-22 |
| SE432174B (en) | 1984-03-26 |
| DK155411B (en) | 1989-04-10 |
| NO772599L (en) | 1978-01-24 |
| BE857030A (en) | 1978-01-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |