DE2915074A1 - LURE TRAPS FOR COMBATING PERSONALIZED FLIES - Google Patents

Description

DR. BEAG DIFL.-ING. STAPF DIPL.-ING. SCHWABE DR. DR. SANDMAIR O Q 1 £ Π 7 A

PATENTANWÄLTE PO Box 860245 8000 Munich 86

Attorney's file_ | ___ 29__928_ April 12, 1979

Airwick AG
Basel, Switzerland

Bait traps for combating flies that are nuisance to humans.

Case: 2-11677 / AFR 103 +

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r (089) 98 8272 Telegrams: Bank accounts: Hypo-Bank Munich 4410122850

988273 BERGSTAPFPATENT Munich (BLZ 70020011) Swift Code: HYPO DE MM

988274 TELEX: .., Bayer Vereinsbank Munich 453100 (bank code 70020270) 983310 0524560BERGd ^: Postscheck Munich 65343-808 (bank code 70010080)

Case 2-11677 / AFR 103 +

Bait traps for combating flies that are nuisance to humans.

The present invention relates to devices designed to destroy flies that are nuisance to humans and consist of particularly effective and economical bait traps.

Flies that annoy people are annoying and / or harmful insects - in particular because of the germs that they transmit (trypanosomes, rickettsiae, tubercle bacillus, leprosy bacillus, Cholera bacillus, typhus bacillus, dysentery bacillus, anthrax bacteria, diphtheria bacillus, amoeba, various Protozoa and viruses from fever with rash), their larvae also have intestinal or cutaneous myases can evoke. Such insects include, in particular, the Diptera of the Muscidae and Sarcophagidae families and Tachinidae. It is easy to understand why man everywhere in the world exterminated insects aspires to this category.

Numerous means of destruction have been devised, such as powders, liquids, aerosols, and insecticidal vapors, however, are all of these agents because of the toxic substances they put on surfaces and / or spread in the atmosphere, dangerous for the user and, more generally, for the environment. For this Reason has been looking for other static or dynamic insect killing devices, including dynamic electrical systems or, fatal electroshock systems that are bulky, heavy and potentially dangerous

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are dangerous, previously known static bird glue systems, which are unsightly, ineffective and have a short lifespan, as well as baits of various kinds Forms such as liquids, granules or plates that are used on their own or in a chamber that forms a trap are to be mentioned. The latter case generally gives the best results.

Such devices have already been described, especially in German Patent 262 132, American patents 1,364,949 »1,700,517,

1 714 666, 3 708 90S and 3 803 753 and in the French Patents 1,463,757, 2,143,723 and 2,191,841. In all of these devices, the insects are ins Inner'der chamber through openings on the side walls the device.

One of the best developed and most effective static Bait traps are described in French patent specification 2,143,723 filed by CIBA-GEIGY.

This consists of a bait, which is on an elongated, in a surrounding the bait, perforated Chamber of the same shape held carrier is distributed. The experiments indicated there clearly show the Significance of such a device “Nevertheless, the latter claims because of its shape and dimensions gen a lot of space and has high manufacturing costs, which is significant disadvantages.

The applicant now has a much simpler, found smaller and more economical static device with just as good effectiveness. This device represents the subject of the present invention

The invention is therefore a bait trap for Control of human-nuisance flies, which consist of A) a chamber with a volume between 200 and

2 000 crn ^ and B) a bait that looks inside the chamber and one for the insects to be destroyed

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attractive nutrient and an insecticidal substance and / or a bird's glue contains, the chamber thereby is marked that it is closed on all sides except its top, where one to four elongated openings are attached, which together make up two to fifteen percent of the total outer surface of the chamber turn off.

According to the invention, the openings are in the upper part of the chamber. As the "upper part of the chamber" one denotes in particular the portion that makes up the upper half of the volume of the chamber, especially the upper half One third of this volume and preferably that part of the chamber which is perpendicular to any one or point located on the vertical axis of this chamber is visible.

The open area preferably makes up 4 to 10, especially 4 to 8 percent of the total external area.

The volume of the chamber is preferably between 300 and 750 cm3.

The shape of the chamber is not critical; it can for example be cube-shaped, parallelepiped-shaped, cylindrical, cylindrical / conical or prismatic or have any irregular shape. Preferably, however, sharp-edged ribs will be provided, the presence of which generally attracts the Diptera of the class in question.

The width of the elongated openings is not decisive, however, it is preferable that the width not exceed 25 percent of the length. In particular, the width less than 10 percent of the length, whereby it must be taken into account that the width is still sufficient to accommodate that Easy to let insects through. The number of openings is preferably not more than two.

According to the invention, the openings offer direct access to the interior of the chamber without detour and in a straight line Line. If necessary, you can use a deflection

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surface or an envelope must be provided, which (r) the exit of the insects more difficult than their entry should, however, they are preferably arranged in such a way that it is theoretically just as easy for a fly to to penetrate into the interior of the chamber as to come out of it again.

The chamber can be made of any opaque, translucent or translucent material, which is suitable to achieve the desired shape, such as cardboard, cellulose board, leather, Wood, glass, porcelain, faience, metals such as copper, aluminum, zinc, iron, nickel and their alloys as well Plastics such as polyethylene, polypropylene, polyvinylchloride, polystyrenes, polyesters, polyamides and their Mixtures, solid or in multi-layer sheets. A part of the chamber and in particular the upper part can for example made of transparent or translucent material.

The chamber can be obtained in any manner known to those skilled in the art Way w: .e by injection molding, thermoforming, blow molding, turning, deep drawing, punching and / or folding.

The surface condition of the material making up the chamber is not critical; so he can for example smooth, satined, matte or processed in such a way that it shows any relief. A shiny surface condition however, it is preferred.

The color of the chamber is not critical, but will be dark and warm, such as red, brown and most importantly black colors preferred. The chamber can be monochrome or multicolored, wherever it is of several colors does not depend on their arrangement. In particular, the color of the inner walls can vary from the outer walls to be different.

The chamber can be made from a single piece or from several pieces, the latter on "any known way such as glueing, stapling, riveting,

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Welding etc. are joined or left loose, to open and / or dismantle, for example to remove dead insects and / or to change the Bait to allow.

The bait represents a basic element inseparable from the device according to the invention, because straight the combination of the bait with the chamber as described above leads to the new bait trap according to the invention, which has remarkable effectiveness and reliability over previous devices.

The bait arranged inside the chamber is a solid, preferably dry bait.

The shape and arrangement of the bait inside the chamber are not critical. For example, the bait can be as a single element in plate form, with a nutrient and an insecticide on it can be fixed or absorbed in an inert carrier, or as a multiple element such as powder, granules, Confetti etc. are present, which can also comprise an inert carrier on which these elements are fixed are.

The inert carrier which may be present can be made, for example, of paper, blotting paper, cardboard, plastic such as polystyrene, polyvinyl chloride, polyvinyl acetate or cellulose acetate, glass, pumice stone, crushed marble, Quartz or silicate minerals are made.

The bait must contain a nutrient that is attractive to the insects and, associated with this, either an insecticidal substance or contain a bird glue. The bait is in the form of a crushing and mixing of the constituent parts of it Ingredients obtained, dry form, this powder being fixed on an inert carrier.

The nutrient comprises one or more, preferably dehydrated or lyophilized components that one chooses from proteins, carbohydrates and substances containing at least one of these components.

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The following are examples of suitable nutrients:

- sugars such as sucrose, maltose, lactose, glucose, fructose, galactose, raffinose, invert sugar and honey;

- dried fruits such as raisins, prunes, apples, Pears, peaches and apricots;

- Meat, fish, egg, milk or yeast powder.

Most important are baits that contain a mixture of carbohydrates and proteins, including those that contain at least 5% protein, this proportion being calculated based on the total dry weight of the bait.

If necessary, the bait can also be a lure and / or an appetizer selected from those known to the person skilled in the art, for example natural ones or artificial cheese, meat and fruit flavors, amino acids, pollen extracts, thymol, skatole, indole, eugenol, Paraformaldehyde, hexamethylenetetramine, ammonium carbamate, aliphatic amines, papain, pancreatin, aliphatic ^ acids, Vanillin, 3-chloro-3-methyl-butene-l, l-chloro-3-methylbutene-2 and higher straight-chain or branched alkenes with 20 to 24 carbon atoms, their ethylene bond after a carbon atom between the 8- and 11-position lies, such as cis-Trikosen-9.

The insecticidal substance can be selected from all those which are caused by ingestion or contact with the insects works; preferred insecticidal substances are selected from N-substituted aromatic or heteroaromatic Carbamic acid esters and non-volatile at room temperature or very poorly volatile organophosphorus compounds selected. Examples of suitable carbamic acid esters are: dimethylcarbamic acid 3-methylpyrazolyl-5-ester, Dimethylcarbamic acid 1-dimethylcarbamyl-5-methylpyrazolyl-3-ester (Dimetilan), methylcarbamic acid 2-isopropoxyphenyl ester (Arprocarb), dimethylcarbamic acid 1-phenyl-3-methylpyrazolyl-5-ester (Pyrolan), dimethylcarbamic acid-2-propyl-4-methylpyrimi-

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dyl-6-ester (pyramate), methylcarbamic acid 2- (1,3-dioxolanyl-2) -phenyl ester (Dioxacarb), N-methylcarbamic acid-5 »6,7» 8-tetrahydronaphttiyl-2-ester, N-methylcarbamic acid-2-methylquinolyl-8-ester, N-methylcarbamic acid orthotert.-butylphenyl ester, N-methylcarbamic acid orthotert.-butoxyphenyl ester, N-methylcarbamic acid orthopropin-2-yloxyphenyl ester, N-methylcarbamic acid orthosk-butylphenyl ester, N-methylcarbamic acid ortho-sec-butoxyphenyl ester, 2,6-di-tert-butylphenyl N-methylcarbamic acid, N-methylcarbamic acid 2,6-di-sec-butylphenyl ester, N-methylcarbamic acid-2,6-diisopropylphenyl ester, N-methylcarbamic acid-2-tert-butyl-6-methylphenyl ester, Dimethylcarbamic acid-5,5-diniethyl-1-cyclohexen-3-onyl-1-ester (Dimetane) and N-methylcarbamic acid 2,3-isopropylidenedioxyphenyl ester (Bendiocarb).

Examples of suitable organophosphorus compounds include: 0,0-dimethyl-0- (2,2-dichlorovinyl) phosphate (dichlorvos), O, O-DJmethyl-O- (l _f 2-dibromo-2,2-didilcräthyl) - phosphate (Dibroni), 0,0-dimethyl-S- (4-aza-6-chloro-2-oxobenzoxazolyl-3) -methyl-thiophosphate (Azamethiphos), 2-0imethoxy-thioxo-phosphoranylthio) -succinic acid ethyl ester (malathion), Q, 0-diethyl-0- (2-isopropyl-6-methylpyrimidyl-4) -thiophosphate (Diazinon), 0,0-dimethyl-0- (4-bromo-2,5-dichlorophenyl) -thiophosphate (bromophosethyl), 0,0-dimethyl-0- (3-methyl-4-nitrophenyl) -thiophosphate (fenitrothion), 0,0-dimethyl-0- (2-methoxycarbonyl-1-propenyl) -thiophosphate, 0,0-diethyl-O- ( 3,5,6-trichloropyridyl-2) thiophosphate, 0,0-dimethyl-0- (2,4,5-trichlorophenyl) -thiophosphate (fenchlorphos), 0,0-dimethyl-O- (2,5-dichloro -4-iodophenyl) thiophosphate (iodfenphos) and dimethyl (2,2,2-trichloro-1-hydroxyethyl) phosphonate (trichlorophone).

In addition to the carbamic acid esters and organophosphorus compounds or in combination with these substances, further insecticidal substances can be used, such as natural ones Pyrethrinei Rotenone, synthetic pyrethrinoids,

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N, N'-dibutyl-parachlorobenzene-sulfonamide, l, 2,4,5f6,7i8,8-0ctachlor-3a _t 4,7 »7a-tetrahydro-4: 7-methanoindane, the gamma stereoisomer of 1,2, 3,4,5,6-hexachlorocyclohexane, endo-exo-1,2,3,4,10,10-hexachlor-6,7-epoxy-l, 4,4a, 5,6,7,8,8a- octahydro-l: 4,5: 8-dimethanonaphthalene, sodium fluoride and boric acid and its salts.

A particularly effective insecticidal substance in the bait traps according to the invention is, for example, azamethiphos, the at the same time excellent insecticidal power and remarkable innocuousness to Offers warm-blooded animals.

The concentration of insecticidal active ingredient in the bait can vary. It is advantageously between 0.01 and 5% by weight and preferably between 0.2 and 3%, these proportions being calculated based on the total dry weight of the bait.

Optionally, the bait can also contain a binding agent such as a natural or synthetic glue, and / or a colorant such as a dye or pigment and / or a stabilizer.

The bait preferably has a matt and colored, from that of the inside and / or the outside of the Chamber different appearance. In general, even brownish red or dark red baits are preferred Color and especially those whose dark red color has a somewhat bluish tint.

The combination of such a colored bait and a chamber, the inside and / or outside of which is a matt or glossy black color, is for the inventive Bait traps are particularly beneficial.

Particularly effective bait traps according to the invention are, for example, those that result from the combination result of a chamber according to the invention and a bait, the one among carbohydrates, aminated organic Substances and their mixtures selected nutrient

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and a non-volatile ingestive insecticidal agent and at least one of straight chain ones or branched higher alkenes with 20 to 24 carbon atoms, whose ethylene bond to one carbon atom is between the 8 and 11 positions, comprises selected attractant.

Among the bait traps according to the invention, those are particularly effective whose bait is used as an attractant Contains 0.01 to 2% by weight, calculated on the bait weight, of cis-Trikosen-9.

The following experiments explain the importance of the bait traps according to the invention. Attempt a

By mixing and rubbing in the following ingredients (percentages by weight):
Lactose: 81.23

Molasses: 18.00

Azamethipho s: 0.27
Red dye: 0.50
bait is made in a mortar.

5 g of the thus obtained powdery bait are regularly on the bottom of a Parallelepipedkammer of 435 cm-5 volume produced by cutting, folding and gluing of black cardboard sheets, the chamber wcbei a a square base of ICO and said upper side two elongate openings of 11 cm each (a total of 5> 9 ° £ of the surface of the chamber).

The bait trap so produced to set in a 28 nr large room at a temperature of 25 ⁰ C and 100 can house flies freely therein. For 3 hours, count the number of dead flies in or near the bait trap every 15 minutes. In this way one proceeds six times in succession. The average percentage of dead flies or those with dorsal decubitus is calculated and noted for each time period.

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For comparison, proceed in the same way using a trap made of a bird

glue-coated cardboard disc with an area of 672 cm consists. The number of flies stuck to the trap at the same time intervals is increased for each of the six tests performed, and the average calculated and recorded.

The following table summarizes the results obtained in this way:
Table I -

Elapsed time Bait trap Bird trap Ln minutes 15th 31.7 8.1 30th 46.4 12.1 45 51.6 14.0 60 57.1 16.2 75 61.3 18.5 90 64.3 21.1 105 66.7 22.1 Ϊ20 68.5 23.0 135 70.1 24.2 150 71.2 25.2 165 72.4 26.6 180 75.6 27.7

The results of this experiment show that a bait trap according to the invention with a bait area of 100 cm is considerably more effective than a bird trap with a usable area that is almost 7 times larger. Attempt B

A bait trap consisting of a chamber of the shape and dimensions defined in Experiment A is used is made, but by thermoforming black polystyrene and assembling the base and top together a box. The two above

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Openings have an area of 15 cm each, which corresponds to Q ° / a of the total area of the chamber.

The bait is composed as follows (percentages by weight):

Dried meat meal: 68.0

Sucrose: 20.0

Azamethiphos: 0.5

Roasted meat flavor: 10.0 cis tricose 9: 0.2

Red dye: 0.8

Potassium ο rbinate: 0.5

One gram of this mixture, comminuted into powder, is evenly spread over the surface of a 9x9 cm Polystyrene plate soaked in ethylene chloride, to make them sticky, spread and fixed, and the thus coated and dried plate is put on the floor put to the Chamber.

A cylindrical / conical one is used for comparison, as described in the French U.S. Patent 2,143,723 made from black polystyrene Bait trap. This bait trap consists of a cylindrical / conical chamber with a lower one Base area of 10 cm diameter, an upper base area of 7 »7 cm diameter, a height of 22 cm and laterally with 8 vertical slots 1.4 cm wide and 15 cm high and also with 6 circular slits 1 cm diameter holes on the top. Located inside and centered on the axis of the chamber there is a cylindrical support also made of polystyrene and 3 »6 cm in diameter and 2Q cm in height using the same procedure as above, 2 g of the bait powder described above with regular distribution fixed. The different? parts constituting this device were obtained by compression molding.

Put the two bait traps together in a 28 ώγ room kept at 25 ° C and let the house

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fly free in it; every quarter of an hour the number of dead flies in the bait traps or is recorded in their immediate vicinity. . After each attempt, the traps are changed so that each trap nine times stands in the same place.

At the end of the experiments "one calculates for each bait trap the percentage of dead flies or those with dorsal decubitus relative to the total in all Try counting dead flies or those with dorsal decubitus.

The recorded results are summarized in the following table:
Table II

Elapsed time Bait trap after Inventive in minutes the French moderate bait Patent specification cases 2 143 723 15th 32.1 36.2 30th 37.7 37.9 45 42.7 • 44.3 60 44.7 45.4 75 46.1 45.5 90 47.5 46.0 105 48.2 46.7 120 49.1 47.2 150 50.1 48.1

These results show that between a very complicated and also expensive one like that in the French Patent 2 143 723 described bait trap and a simple and economical one as in the present one Invention proposed bait trap there is no significant difference at all.

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Attempt C

As in experiment B defined parallelepiped bait traps are produced, whereby the bait is composed as follows (percentages by weight):
Dried meat meal: 63.5

Sucrose: 20.0

Dimetilan: 5 »00

Roasted meat flavor 10.0 cis tricose 9: 0.2

Red dye: 0.8

Potassium sorbinate: 0.5

For comparison, cylindrical bait traps are made of black polystyrene with one of the parallelepiped traps

ρ has the same volume and a base of 80 cm, on the bottom of which a circular polystyrene plate is placed which takes up their entire surface and carries 1 gram of the bait defined above. A crown-shaped Opening of 30 cm (9% of the chamber area) is out of the cut out upper circular area.

In 1978 insecticide tests were carried out in 44 homes in the Poitiers area (France). One parallelepiped bait trap and one cylindrical bait trap were placed in the same room in each apartment and the number of dead flies per room and per device counted twice a week, with the position the trap was exchanged at the same time. After 5 weeks, the experiment was interrupted and the records were recorded Results (relating to a total of 19,821 flies) were angularly transformed to one To enable scatter decomposition which showed that between for the parallelepiped bait trap and for the cylindrical bait trap found no significant difference.

The results of this experiment show that the shape of the bait traps according to the invention with the same volume, the same area of the same bait and the same

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The area of the upper opening is not decisive. Attempt D

Three 775 cm large parallelepiped

chambers with a square base of 102 cm and with an upper side, which is formed by two parallel elongated openings at a distance of 56 mm from each other of I5 cm (15x100 mm) (5.9% of the total area of the Chamber) is broken. The chambers were made by means of cut, folded and stapled cardboard sheets obtain.

As in experiment A stated, a bait assembled as in Experiment C, glued to polystyrene, set up.

The first bait trap made in this way (D-I)

the bait sticks to a 100 cm square polystyrene plate that is laid flat on the bottom of the chamber.

With the second bait trap (D-2) the bait sticks

2
on both sides of a 50 cm large polystyrene plate, which is upright, perpendicular to the bottom of the chamber and parallel to the openings in the middle between them.

With the third bait trap (D-3) the bait sticks to the outer surface of a polystyrene tube that is upright in the center of the chamber is perpendicular to the floor and the

- ■ <p

occupies the entire height (total area 100 cm).

Put the three bait traps together in a 28-room room kept at 25 ° C and let house flies in it free; every quarter of an hour the number of dead flies in the bait traps or is recorded in their immediate vicinity. After each attempt, the traps are changed so that each trap four times stands in the same place.

Mm end of the experiments is calculated for each bait trap the percentage of dead flies or those with dorsal decubitus "based on the total number in all Yersuelien" counted dead flies or those with dor-

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ORIGINAL INSPECTED

salem decubitus.

The recorded results are summarized in the following table:
Table III

Elapsed time D-I D-2 D-3 in minutes 18.2 18.1 18.5 15th 22.6 23.7 22.6 30th 26.1 25.7 24.8 45 28.0 27.1 25.9 60 29.3 28.2 27.6 90 30.3 28.9 29.1 120

• These results, which are practically the same, show that the position of the bait in the bait trap and the shape of the bait are not decisive.
Try

Set up parallelepiped bait traps as defined in experiment C. here.

For comparison, bait traps are made that differ from the above by having the top made of transparent polyvinyl chloride with identical openings.

In the 1978 season, insecticide tests were carried out in 44 apartments under the conditions described in Experiment C. carried out.

After 5 weeks, the experiment was interrupted and the results recorded (which refer to a total of 17 816 relate flies) is subjected to an angular transformation in order to enable a dispersion decomposition, which showed that between those for the bait trap with opaque top and those for the transparent There is no significant difference between the top results found. The results of this experiment show

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ORIGINAL INSPECTED

that the nature of the top of the bait traps according to the invention is not critical. Try F

From the following components (percentages by weight):

Fine powdered sugar: 69 »5 dried meat meal: 30.0 Dimetilan: 0.5

a powder bait is made by mixing.

This powder is glued in an amount of two grams each using a polyvinyl acetate-based glue on both sides of 10 χ 12 cm polystyrene sheets.

In addition, closed cylindrical boxes made of red polystyrene are made on all sides, whose diameter is 10 cm and whose height is 12 cm. There are four at each end of the boxes Evenly distributed seams consisting of 2 χ 2 cm rectangles that extend the cylindrical wall.

In each box a plate carrying the bait is attached as described above, which the box in divides two equal half cylinders.

In the first box F-I, cut in the upper side (the circular area opposite the feet) symmetrically on either side of the end of the plate carrying the bait, two rectangular, 7 »5 x 2 cm Openings (5.6% of the total area of the chamber).

In the second box F-2, the cylindrical part is cut symmetrically on both sides of the bait The supporting plate has two rectangular openings parallel to the upper edge of the circle at a distance of 2 cm from it Dimensions a.

In the third box F-3 you cut two openings as in case F-2, but at the same distance from the bottom and top.

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In the fourth box F-4 two openings are cut as in case F-2, but at a distance of 2 cm from the lower edge of the circle.

Two openings are cut into the fifth box F-5 as in case F-I, but in the bottom (the circular area between the feet).

The five bait traps produced in this way are each placed on their feet at a distance of one meter from one another in a room ^{with a size of 40 mm and kept at a temperature of 24 ° C.}

Then 250 house flies are released into the room For two hours, count the number of dead flies in each bait trap and their proximity every 15 minutes. You proceed in this way five times in succession, changing the position of the traps so that everyone moves once in each position.

At the end of the experiments, the percentage of dead flies or those with dorsal flies is calculated for each trap Decubitus both in the trap and as a whole in the trap and its immediate surroundings, based on the Total number of flies used for all experiments.

The recorded results are summarized in the following table: Table IV

Elapsed time F-I F-2 Total dead flies 19.4 9.6 Dead tiles in the traps 26.9 11.7! F-3 I. F-4 ■ __F-5_ in minutes 15th 26.7 13.4 120 30th 29.1 14.2 5.6 6.1 2.4 45 30.7 15.2 7.8 8.7 3.6 60 32.8 16.1 8.7 9.4 4.4 90 34.0 16.4 9.1 10.0 4.9 120 9.9 11.0 5.6 10.4 11.6 5.6 5.1 6.4 | 0

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It can be seen that you get the best results obtained when the openings are in the upper part of the bait trap and especially on the top of the Bait trap.

Claims (18)

PATENT ANWrtL 8 MOKGHEN 80 - MAUERKIHCHER3TR. 45 Claims Q / bait traps for combating human-nuisance flies, consisting of A) a chamber with a volume between 200 and 2,000 cnr and B) a bait that is located inside the chamber and a nutrient and an insecticide that attracts the insects to be destroyed and / or contains a bird's glue, the chamber being characterized in that it is closed on all sides except its top, where one to four elongated openings are made, which together make up 2 to 15 percent of the total outer surface of the chamber. 2. bait traps according to claim 1, characterized in that that they have a single opening. 3. bait traps according to claim 1, characterized in that they have two openings. 4. bait traps according to one of claims 1 to 3, characterized in that the area of these openings Makes up 4 to 10 percent of the total external area of the chamber. '. 5 · bait traps according to one of claims 1 to 4, characterized in that the width of the openings sufficient to allow the insects in question to pass easily, but not exceed 25 percent of their length. 6. bait traps according to any one of claims 1 to 5, characterized in that the surface of the chamber in shiny condition. ----- 7 «bait traps according to one of claims 1 to 6, characterized in that the chamber has a dark and has warm color. 8. bait traps according to claim 7 »characterized in that that the chamber is red and / or brown in color. 9. bait traps according to claim 7 »characterized in that the chamber has a black color. 10. bait traps according to one of claims 1 to 9 »da- '90984 3/0869 ORIGINAL INSPECTED -which denotes that the bait is one among proteins Carbohydrates and at least one of these ingredients containing substances selected nutrient and about 0.01 to 5 wt .-% of an insecticide calculated on the total weight of the bait. 11. bait traps according to one of claims 1 to 10, characterized in that the insecticidal substance under selects those that act on the insects through ingestion. 12. bait traps according to any one of claims 1 to 11, characterized in that the bait is a mixture of Contains carbohydrate and protein. 13 · Bait traps according to claim 12, characterized in that the bait contains at least 45 % by weight protein, this proportion relating to the total dry weight of the bait. 14. Bait traps according to one of claims 1 to 13, characterized in that the bait has a lure and / or contains appetite. 15. bait traps according to claim 14, characterized in that that the attractant is found among straight-chain or branched alkenes with 20 to 24 carbon atoms, whose ethylene bond lies between the 8- and 11-position after a carbon atom. 16. Bait traps according to claim 14, characterized in that cis-tricose-9 is present as the attractant. 17 · bait traps according to one of claims 1 to 16, characterized in that the insecticidal substance azamethiphos contains or consists of. 18. Bait traps according to one of claims 1 to 17 »characterized in that the bait is a dark red or contains brown dye. 909843/0869