WO2014207324A1 - Autonomous attracticidal device to combat harmful flying insects, particularly flies - Google Patents

Abstract

The invention proposes producing a new autonomous attracticidal device (1) to combat harmful flying insects, and more specifically flies, based on the concentration of a fly-attracting bundle on said device developed by combining "colour vision + olfactory + gustatory" stimuli, to attract the flies to a solid, non-adhesive surface and comprising contact insecticides for said flies. The device works by quasi-instantaneous fatal attraction through contact with the active surface of said device, owing to a particular design combining an attractive bundle with a contact insecticide. The device is structured on an inert support (12) and an active background (13) with a poured polyurethane matrix bearing attractants and insecticide. It can be used continuously in any location, without electricity or maintenance.

Description

 AUTONOMOUS ATTRACTICIDAL DEVICE FOR COMBATING PEST FLYING INSECTS AND PARTICULARLY FLIES

The present invention relates to a device for controlling harmful flying insects both in a closed space and in an open space, attracting them to kill them almost instantaneously, said device being placed out of reach of children as well as animals and can be handled without touching the active area. It therefore involves less risk of poisoning for users and especially for children or pets and livestock.

Among the most universal harmful fly insects, an example is the fly which is present on all continents and in all climates. The term "harmful flying insects" includes several species in the orders: Diptera, Ephemeroptera, Hymenoptera, Coleoptera, Hemiptera and Mecoptera. There are more than 100,000 species in the world. The interest of the invention will relate particularly to harmful flies comprising the harmful species, by way of example:

o Stinging flies: Beef or horsefly, Anthrax fly (Stomoxys spp.), Tsetse fly or Glossine fly (Glossina spp.), Libyan flyfly or Butcher's eyefish (Cochliomyia homonivorax); o Devastating crop flies: fruit fly or mediterranean fruit fly (Ceratitis capitata), asparagus fly (Pliorcocepta poeciloptera), beet maggot or Pegomyia (Betae), carrot fly (Psila rosae), fly bryony (Liriomyza bryoniae), cherry fruit fly (Rhagoletis cerasi), mango fly (Bactrocera oleae), onion maggot (Phorbia antiqua), olive fly (Bactrocera ojeae), fruit fly Pacific (Bactrocera xanthodes), Seed fly (Delia platura), Cabbage maggot (Delia radicum), Watercress fly (Hydrelia nasturtii), Melon maggot (Bactrocera cucurbitae), Turnip maggot (Delia floralis), Gray grain maggot (Delia coarctata), Gray endive fly (Ophiomyia pinguis), Eastern fruit fly (Bactrocera dorsalis), Vinegar fly or Drosophila (Drosophila spp.), American leafminer (Liriomyza trifolii), South American leafminer ( Liriomyza huidobrensis) he of Hesse (Mayetrola destructor); o Flies responsible for discomfort: Fly with poop or Golden fly or Green fly (Lucilia οθβεβή, Fly fleece or asylum (Asilidae), (Big) Blue fly or meat fly (Calliphora vomitoria), Fly of St. Mark or St. Mark's bibion (Biblio marci), rain fly or rainforest (Anthomyia pluvialis), house fly or common fly (Musca domestica), house fly (Fannia canicularis), cheese fly (Piophila casei) and gray meat fly or checkerfly or black fly (Sarcophaga carnaria).

All these flies share the fact that they are harmful in one way or another. Thus, the flies responsible for discomfort can be the vectors of diseases by transporting microbes for example detritus on the food, being for example the origin of typhus or cholera, to name only these two evils. Hematophagous flies parasitize cattle or can transmit diseases such as leishmaniasis or sleeping sickness. Other flies, once ingested, can cause myiasis. The pests of crops are mainly larval damage to crops. So the fight against the fly mobilizes very high sums and the recourse to very diverse processes in order to limit their populations, in the Industrialized Countries as in the Third World.

Among the techniques of fight against flies, the prior art describes the best known: fly stickers, fly swatter, tape glu antimouches and insecticides.

The anti-fly stickers are in the form of a translucent sticker of non-remarkable color, glued on the glass for example of a window and which attracts the flies by its particular color. The sticker contains insecticide, a food bait and an attractive odor substance such as pheromone or kairomone. The latter acts at a distance attracting flies by their sense of smell. The anti-oil sticker is a toxic product that kills flies, but remains dangerous for humans and pets. As a result, it poses a risk to both application and take-off when it has become out of order, both operations being manual. Moreover, the applicant also produces fly stickers under the trademark ECOGENE ^® . They consist of a sunflower-yellow polymer matrix that is very attractive to flies, in which tricosene is incorporated as a sexual attractant, icing sugar as a food attractant and permethrin as an insecticide. But the effectiveness of stickers is random and well below the expected results. Indeed, flies that land well on the stickers leave without apparent consequences. This lack of effectiveness is due to the fact that the insecticide and the food, sequestered in the polymer matrix, are in insufficient concentration on the surface of said matrix to retain and thereby intoxicate the flies that settle thereon.

The electric fly swatter is a device powered by electric current. It is composed of ultraviolet tubes that emit blue radiation that can attract flies. On these tubes are placed electrified metal frames connected to a transformer, and burn electrocution insects that come to their contact. This device that runs on electric power is not only relatively expensive, but may present some risks related to the use of household electrical appliances.

Other types of fly-flyers have been developed, including that disclosed in WO 86/00195 (JASON INDUSTRIAL CO., LTD [KR / KR]) (16.01.1986) which discloses a fly catcher. made of transparent synthetic resin. This device of conical shape makes it possible to trap the flies and to kill them by pressure of the walls of said device. But it requires the permanent presence of the man to make it work.

The flies fly tape is strongly colored to attract flies that end up sticking and die without insecticide. The anti-fly glue tape is only used indoors, placed in the areas most frequented by flies, preferably protected from drafts. It is used until saturation, offering an unpleasant vision rather disgusting because of the spectacle of tens of corpses of flies agglutinated on the band. In the same context, the application EP 2 553 236 A1 discloses a paper filter device consisting of paper having an area coated with glue mixed with a sweet substance that will attract flies that will remain glued on the glue and die.

Insecticides belong to two main types: chemicals and products of plant or natural origin. The former are generally recognized as dangerous to humans and are divided into seven main families: organochlorines, organophosphorus compounds, carbamates, synthetic pyrethroids, sulphones, sulphonates and formamidines. You have to know the species to fight so you can better identify them.

There are also microorganisms called biopesticides used in insect control. We cite : o Bacteria such as Bacillus thuringiensis, Brevibacillus laterosporus, Chromobacterium subtsugae, Yersinia entomophaga, etc.

 o Fungi such as Beauvaria spp. (in particular different strains of Beauvariabassiana), Lecanicillium spp. , Entomophthora muscae (specific to housefly), etc.

 o Viruses, especially Baculivirus.

Insects do not react identically to different insecticides, they have been adapted to different families of insects. Thus, BAYER CROPSCIENCE AG [DE] develops, from tetramic acid derivatives, a series of insecticides each adapted to a family of insects, as described in patent applications EP 2289316 (A1), EP 2289317 (A1 ), EP 2289318 (A1), EP 2289319 (A1), EP 2277377 (A1), EP 2277379 (A1), EP 2277380 (A1), EP 2266399 (A1), EP 2023723 (A2) and WO 2007131681 (A2).

To improve the effectiveness of the fight against harmful flying insects, it is known the combination of different control systems already mentioned with a significant share brought by the use of various attractants and baits and insecticides. The baits can be simply dietary or chemical compositions as developed in the application EP 0107022 A1 which discloses a new bait consisting of 2,2-dimethyl-3 - (/ 3, yS-dichlorovinyl) -cyclopropane carboxylate a-cyano- 3-phenoxy-4-fluoro-benzyl mixed with one or more other additives.

Using the same logic, the application WO 2006055275 A1, also published as EP 18531 A1, discloses fly gel traps which include: a) one or more neonicotinoids as insecticides; b) one or more gelling agents; c) one or more attractants. The said gels are of a water-based nature, the moisture of which is itself attractive to flies.

In the same conceptual order, the application EP 1832167 A2 discloses a device for controlling insects, in particular against flies. Said device consists of a support layer on which pasty layers are applied, including a food layer and / or toxic contact. The pasty state of the various layers contributes to an inconvenience of using said device in some cases.

Application EP 2399456 A1 discloses a device for controlling insects, in particular flies, comprising two discs held face to face and separated by a spacer at a determined distance, the inner surface of the first disc being active and more or less partially provided with an adhesive material, while the opposite surface is reflective to better expose at least one bait to attract insects on the active side . It should be noted that this device has at least one drawback: the saturation of insects stuck on the adhesive active face leads to an operating limit of said device.

The insecticides can be applied by spraying, by brushing or supported for example on granules. This is the case of the Quick Bayt product, which is a reddish granular bait, containing an insecticide based on imidacloprid and odorous sexual attractants. This product is applied by spreading, which poses a certain risk for humans, especially children, as well as for animals and the environment.

It is known that flies have a very developed sense of smell that allows them to smell even at great distances. It is this same developed sense that allows them to perceive particular pheromones and kairomones among a mixture of several scents and to locate the exact source towards which the flies will move. Microorganisms emitting attractive kairomones for insects are also used. We will quote:

^■ yeasts as Saccharomyces spp, which attract through the breakdown products of certain substrates they cause;

^■ bacteria such as Bacillus spp. ;

^■ fungi such as Fusarium spp.

It is also known that flying insects are attracted, according to their family, preferentially by certain luminosities and particular colors. But it must be pointed out that vision plays a predominant role of attraction only at a shorter distance. Yet some colors exacerbate the attraction like yellow for houseflies, combinations of phthalogen blue, white and black for hematophagous flies, or red for some species of fruit flies.

To better understand the invention, the device according to the invention is illustrated by the non-scale diagrams described below which are provided by way of example without being limiting:

• Figure 1: Device with support and circular active background; • Figure 2: Device with support and active background squares;

• Figure 3: Device with triangular support and circular active background;

• Figure 4: Diagram of fly mortality during the test of a circular dish with a reverse dish profile.

The present invention proposes to improve the fight against harmful flying insects and particularly flies by combining the advantageous aspects of control systems already known in a new autonomous device does not have the disadvantages of existing devices. In particular, it is desired to be able to manufacture a device that is hygienic and clean, with less risk for the user, requiring no particular maintenance during its use, without energy consumption and with a very long duration of effectiveness, thanks to the active matrix backing. non-sticky polyurethane.

According to the invention, it is proposed to produce a novel autonomous device for controlling harmful flying insects and more specifically against flies, based on the concentration on said device of a beam of attractants specific to the species of flies. targeted flies, developed by the combination of "color vision + olfaction + taste" stimuli, to attract flies to a solid, non-sticky surface with contact toxic substances for said flies. The choice and constitution of the beam of attractants must take into account that flies can react differently according to their family of origin.

According to one embodiment of the invention, the different stimuli composing the beam of attractants are defined as follows:

 color vision obtained by the use of colors that are specifically attractive to the target fly species, as well as the combination of said colors by playing on the contrasts to color the various constituent parts of the device that is the subject of the invention;

- Olfaction obtained by the use of long-range odorant molecules, preferably pheromones and kairomones specific to targeted fly species; - Taste obtained by the use of a food or an inert material bearing at least one kairomone, necessarily in the solid state and preferably in granules or crystals, specific to the species of targeted flies.

According to another advantageous embodiment of the invention, the insecticide chosen is specific to the species of targeted flies, which preserves non-harmful flying insects. It can be of natural origin or synthesis or specific microorganisms.

A first aspect of the invention thus relates to an autonomous attracticide device for combating harmful flying insects and more specifically flies, by almost instantaneous fatal attraction by contact with the active surface of said device, thanks to a particular design combining a beam of specific attractants with a specific contact insecticide.

According to a second aspect, the invention relates to a process for the preparation of said device in which the active ingredients, and more particularly the odorous attractant compounds and the contact insecticide, are kept integrally on the so-called active background contact surface (13). of the device (1, 2, 3) by means of new technical solutions according to which a mixture of attractive ingredients and insecticides is applied to the surface of a cast polyurethane polymer matrix or a gelatin surface layer which adheres to said surface of the polyurethane matrix to remain in direct contact with insects.

This method of manufacturing a device for controlling harmful flying insects and particularly flies is based on the use of cast polyurethane which makes it possible to cold build a polymer matrix on any surface to be covered or in any volume to be filled whatever either the configuration, according to a technique developed in the laboratories of the applicant and described in detail in a patent application in his name under No. FR 2 992 325 A1 having the title "multifunctional sequential matrix monopolymeric cast polyurethane and manufacturing process ". This method of forming a cast polyurethane block polymer matrix comprises mixing a solution of polyol complex with an isocyanate and pouring solution obtained on a support surface or into a mold, and then allowing polymerization until solidification to obtain a polyurethane matrix. . The non-polymeric solid asset mixture applied to the surface of the matrix almost at the end of polymerization will adhere to it without entering the said matrix, in accordance with the final objective of the desired applications as already exposed. According to the invention, the matrix thus constituted is called the active background.

Unexpectedly, it has been found that by using the same reagents as for the manufacture of the anti-fly stickers already mentioned, the device developed according to the invention has a yield of 100% of flies killed almost instantaneously in contact with the layer. superficial on the active background.

It has furthermore been found that the targeted fly species were fatally attracted by the device according to the invention over a large radius.

The present invention thus relates to an autonomous attracticide device (1, 2, 3) for combating harmful flying insects and particularly flies, based on the concentration on said device of a fly attractant beam developed by the combination of "color vision + olfaction + taste" stimuli intended specifically to attract said insects to a toxic surface, said device consisting of:

 a) a support (12) of variable circular, polygonal or triangular shape, of a size ranging from 5 centimeters to 100 centimeters in diameter, on the side or diagonal in the form of a flat, convex or concave profile, made of inert material, of attractive color for flies contrasting both with the active background (13) and with the environment of use of said device (, 2, 3);

 b) an active base (13) of shape identical or not to the shape of the inert support, but also variable, circular, polygonal or triangular, of dimensions 15% to 25% smaller than those of the inert support to which it is adhered and whose the marginal overflow forms a band (14) of color contrasting with the color of the active background, said active base (3) being a cast polyurethane matrix consisting of a mixture of:

 from 8% to 10% by weight of an isocyanate prepolymer;

 89.40% to 91.40% by weight of a polyol;

 0.02% to 0.04 by weight of a catalyst;

 0.40% to 0.60% by weight of an anti-UV agent;

o 0.05% to 5% of a sex pheromone for flies or at least one odorous attractant; o 0, 1% to 0.3% of an attractive dye for flies and contrasting with the color of the inert carrier (12);

 c) a surface discontinuous layer constellated with granules or crystals (15) of attractive coloration for flies and contrasting with the color of the active background, said granules or crystals consisting of a mixture of attractive and toxic active ingredients for flies including:

 84% to 90% by weight of a food or an inert material bearing at least one kairomone, including a kairomone derived from microorganisms,

8% to 12% by weight of liquid contact insecticide,

 0.1% to 1% by weight of liquid dye contrasting with the color of the cast polyurethane matrix and

 • 1% to 3% by weight of drying.

The cast polyurethane matrix can advantageously store all the substances which have been mixed with the polyol solution during cold processing.

According to one embodiment of the present invention, the active surface layer is a gelatin matrix which adheres to the active cast polyurethane background and on which are adsorbed said granules or crystals of attractive coloration for flies and contrasting with the background color active, said granules or crystals consisting of a mixture of attractive active and toxic assets for flies. Said gelatin matrix comprises:

 1% to 20% by weight of gelatin,

 25% to 90% by weight of sugars,

 - 2% to 15% by weight of contact insecticide,

 - 15% to 70% water,

 - 0.001% to 1% dye of the color of the active background.

According to a preferred feature of the device object of the invention, sensitive substances such as pheromones and kairomones, including those from microorganisms, odorous attractants, are mixed in the polyol solution to preserve the chemical structure. After the polymerization and solidification of the matrices, the sensitive substances thus incorporated in said cast polyurethane matrix, or in gelatin, remain safe from external denaturing factors such as oxygen air or humidity, which allows a long-term consistency of diffusion. In the case where the surface layer is a gelatin matrix, said sensitive substances are incorporated therein before the gelling of the liquid gelatin, the entire surface of the surface layer thus becoming active while protecting said sensitive substances.

 According to a preferred embodiment of the device according to the invention, said mixture of attractive ingredients and insecticide is applied to the surface of the cast polyurethane matrix still in the polymerization phase, to appear at the end as a discontinuous layer granules or coated crystals (15) which adhere perfectly to said active bottom (13) thus formed.

According to another embodiment of the device according to the invention, said mixture of attractive agents and insecticide is applied to the gelatin matrix surface layer not yet completely solidified, itself applied to the cast polyurethane active substance, to appear at the end as a discontinuous layer of granules or coated crystals (15) which adhere perfectly to said active bottom (3) thus formed.

This presentation of said device promotes and amplifies a more prolonged direct contact of the flies with the food or the inert material carrying at least one kairomone, therefore inevitably with the contact insecticide in a concentrated form. The device according to the invention thus makes it possible to quickly kill the flies without them remaining stuck on the active bottom (13). Said device can be used both horizontally, placed on a flat surface, and vertically, hanging from the ceiling or a beam, hanging from a wall, a tree or any other vertical support. It remains clean, which avoids any manual maintenance and gives it real autonomy. It never needs to touch the active background (13) carrying toxic assets, which allows to move easily and at will said device (1, 2, 3) without risk of intoxication.

According to an advantageous characteristic of the device according to the invention, the attractive beam consists of the attractive color, contrasting with the environment, of the strip (14) formed by the support (12), the attractive color of the active background ( 13) contrasting with the color of said support (12), the attractive color of the constellation (15) of the active mixture contrasting with the color of the active background (13), the pheromone or at least one fragrant attractant kairomone incorporated in the background active ingredient (13) and the contact attractant such as the food or the inert material carrying at least one kairomone adhered to the surface of the active bottom (13). Said attractive assets each act on at least one essential sense of flying insects, all attracting inexorably on the active background (13).

According to another advantageous characteristic of the device object of the invention, it can be used in closed space as in open space with always good efficiencies.

According to one embodiment of the device according to the invention, the support (12) is made of a chemically inert material selected from polystyrene, polyethylene, polypropylene, polyvinyl chloride, polycarbonate, polyamide, polyacetal, polyetheretherketone or polyethylene terephthalate, wood, materials of vegetable origin, metallic materials or materials of mineral origin, without this list being exhaustive.

According to a particularly advantageous embodiment of the device that is the subject of the invention, the fly attractant beam based on the combination of "color vision + olfaction + taste" stimuli is elaborated according to the target insect, for example, without being limiting, we quote for:

 • Musca domestica (house fly); [color vision] yellow and blue + [olfaction] Z-9-tricosene + [taste] sugar;

 • Drosophila suzukii (cherry and strawberry fly): [color vision] red + [olfaction] acetic acid, ethyl alcohol and methyl eugenol + [taste] sugar;

• Bactrocera oleae (olive fly): [color vision] yellow, orange, red and black + [olfaction] nonenol, nonenal, hexanal, E-2-hexanal and σ-pinene + [taste] sugar;

• Bactrocera cucurbitae (melon fly): [color vision] red + [olfaction] ethyl and propyl-4-hydroxybenzoate + [gustation] sugar;

• Tsetse, stomoxys, horsefly (blood flies): [color vision] combination of phthalogen blue, white and black + [olfaction] octenol, carbon dioxide, p-cresol, propan-2-one and 3-n- propyl phenol + [taste] sugar and salt. The autonomic attracticide device for combating harmful flying insects and particularly flies according to the invention can be manufactured in the context of industrial production, by arranging the support (12) made of inert polymer obtained by injection molding, which is associated with a bottom active (13) polyurethane matrix according to a technique developed by the applicant: the forming of polyurethane polymer matrices cast using a casting machine provided with a mixing turbine and a deposition nozzle in deposit of controlled thickness cast polyurethane which will enter polymerization and receive under a metering dispenser the dry mixture of active for its adsorption on said active background.

The entire process of implementation of the invention is feasible only because the active background of the device is a molded polyurethane matrix applicable cold and in liquid form on the polymeric support, without adding technological adjuvant of collage of the different components.

 Thus, it is an object of the present invention to provide a method of manufacturing an autonomous attracticide device for controlling harmful flying insects and particularly for flies, essentially comprising the steps of:

 a) arranging the support (12) of inert material on the casting plate of the casting machine;

 b) preparing the cast polyurethane by:

 i. preparing the solution of the polyol complex by mixing the liquid polyol with the catalyst, the anti-UV agent, the pheromone or other odorous attractants and the dye;

 ii. prepare the liquid isocyanate in another container; iii. load the two components thus prepared each into its respective reservoir;

 iv. mixing the two components in the turbine to obtain the liquid polyurethane to be poured;

 c) Pouring through the nozzle liquid polyurethane poured on the support (12) of inert material to the desired thickness and let polymerize to obtain the active background;

 d) further preparing the mixture of assets according to the steps of:

 i. put in the liquid state the insecticide;

ii. mix with agitation the liquid insecticide and the liquid dye; iii. always stirring the solid food or the solid inert material carrying at least one kairomone, in granules or crystals (15), in the liquid mixture obtained in ii;

 iv. introduce the drying and continue to mix until drying;

 e) collect the dry mixture of assets thus obtained in d);

 f) if necessary, prepare the liquid gelatin comprising the steps of:

 i. mix gelatin with water and leave at room temperature without agitation;

 ii. alternatively mixing glucose syrup, sucrose and water with stirring at 70 ° C to obtain a solution of sugars;

 iii. introducing, still stirring at 70 ° C, the gelatin mixture obtained in i in the sugar solution obtained in ii until a homogeneous gelatin solution is obtained;

 iv. introducing with cold stirring the sensitive substances in the gelatin solution obtained in iii to obtain the active gelatin solution;

 v. add the same dye as the polyurethane base obtained in (c);

 g) if appropriate pour the liquid gelatin obtained in f) on the active cast polyurethane bottom obtained in c) and allow to cool to form and solidify the gelatin surface layer;

 h) distributing the mixture of actives obtained in d) in a discontinuous layer on the cast polyurethane matrix which is in the advanced polymerization stage, or

 i) where appropriate, distribute the mixture of active ingredients obtained in d) on the gelatin surface layer;

 j) awaiting the end of the polymerization of the active base (13) thus formed;

 k) wrapping the device (1, 2, 3) in an airtight package.

Advantageously, the solid food or solid inert material carrying at least one kairomone is not dissolved in the liquid mixture formed by the insecticide and the dye, both in the liquid state, but is rather coated with said mixture by means of the drying agent, the dye and the insecticide thus being finally adsorbed in the concentrated state on the food or the inert material bearing at least one kairomone. The autonomous attracticide device according to the invention has many advantages, the first being to be practical, to be usable anywhere, in open space as in a closed space, in a continuous manner, without energy consumption, without particular maintenance and with less risk of intoxication for both the user and especially for children as well as for domestic and farm animals. It can thus be used, placed in a protective device, attached to an animal with a collar, a halter or a strap. It is very easily movable without ever having to touch the toxic active background.

The use of the device according to the invention makes it possible to avoid saturating the air as is the case with sprayed insecticides. The concentrated and dry insecticide of the device according to the invention does not spread on all the surrounding surfaces and is not driven by air. Its almost instantaneous efficiency does not allow the fly, after a stay on the active bottom, to land on several objects before dying. The device according to the invention is designed for specific targets while preserving the environment and presenting almost no ecological risk.

The following examples will illustrate the invention and better understand the various advantages.

EXAMPLE 1 - Manufacture of an autonomous device for controlling the green and blue fly {Calliphoridae).

The following materials are available:

 • a parabolic disk support 12 centimeters in diameter and 2 centimeters deep at its central point, made of polystyrene and bright yellow, manufactured by AB7 Industries;

• prepolymer isocyanate (MDI) manufactured by Huntsman and distributed by Azelis in the SUPRASEC ^® brand in 2029;

 PPG polyol distributed by Baulé under the trademark G48;

 • a catalyst distributed by Shepherd under the BICAT brand;

 • a sexual pheromone distributed by Lumaru under the trademark MUSCALURE;

• an anti-UV agent distributed by Baulé under the trademark ZIKA CUV;

 • a blue dye distributed by Baulé;

 • No. 2 crystal sugar distributed by Sucre et Services;

• an insecticide distributed by PCS under the PERMETHRINE 40/60 brand; • a yellow liquid dye distributed by Baulé;

 • a drying agent distributed by Univar under the trade name CABOSIL.

Operating mode

at) . Preparation of the asset mix

 • in a beaker, 10.84 grams of permethrin are heated at 40 ° C to liquefy it;

 • the beaker containing permethrin is removed from the oven and 0.25 grams of liquid yellow dye are added with stirring to the magnetized bar;

 86.91 grams of No. 2 crystal sugar are added to a PAPENMEYER mixer with mechanical stirring;

 • the mixture of insecticide and yellow dye is poured into the mixer containing the stirring sugar;

 • 2 grams of CABOSIL are added to the blender;

 • After stirring, remove the active mixture consisting of yellow and dry sugar crystals, coated with insecticide and dye.

b). Preparation of active background

 • 1 gram of MUSCALURE, 0.31 grams of BICAT, 5.2 grams of ZIKA CUV and 2.5 grams of blue dye are mixed in 933 grams of G48 in a container where they are mechanically mixed using a flat blade for about 10 minutes, until a homogeneous blue mixture is obtained;

• 100 grams of SUPRASSEC 2029 are then added to said mixture and the mixture is stirred for 30 seconds to form the liquid polyurethane to be cast;

• 47 grams of the last mixture are poured immediately after stopping the agitation in the hollow of the inverted parabola disk support so as to form a perfect circular bottom 10 centimeters in diameter, concentric with said support and forming a surface horizontal plane of 2 centimeters deep in the center and 0,2 centimeters on the edge;

 • When the pot life (advanced but not complete polymerization) of the cast polyurethane is reached after 90 seconds, the surface of the polyurethane is dusted with the active mixture to form the active blue background with yellow crystals, which adheres to the disc. yellow leaving a yellow halo.

• The device obtained is packaged in a wrapped aluminum foil package. EXAMPLE 2 - Efficacy Test of the Green and Blue Fly Control Device (Calliphoridae)

The green and blue fly is of veterinary importance because some species are optional or obligatory "myiasigenic" parasites.

We have the following materials:

 • 4 white buckets of 15 liters, measuring 280 millimeters deep and 360 millimeters in diameter, provided with a white lid in which is made an opening 260 millimeters in diameter and covered with a mosquito net whose mesh has a diameter of 1 millimeter;

 • 4 white devices used as sources of sugar and water;

 • 3 anti-fly devices manufactured according to the method described by Example 1;

• 4 stopwatches, one of which is assigned to each bucket;

 • 4 lots of 15 green and blue flies (Calliphoridae);

 • 1 fan to ensure the renewal of air and put in conditions close to outdoor use.

Experimental protocol

 • At the bottom of each bucket is placed 1 source device of sugar and water;

 • In 3 buckets (repliquas) and at mid-height, there is an anti-fly device;

• We keep a bucket control in which we do not place anti-explosive device;

 • We put the lid, we introduce into each bucket a lot of 15 flies and we observe by counting in each bucket the number of flies that die by noting the time.

Results

Flies in the control bucket, without anti-fly devices, go to the source of sugar and water and fly freely in the bucket, landing from time to time on the mosquito net. They stay alive.

The flies of the three buckets with anti-fly device have a different behavior. Indeed, they preferentially on anti-fly devices and there linger. Then they climb to stick to the mosquito net before falling to the bottom of the bucket, dead.

The average of the results of the three buckets with anti-fly device is summarized as follows:

 o 50% dead flies after 6 minutes;

 o 78% dead flies after 10 minutes;

 o 100% dead flies at 20 minutes.

 These results are illustrated in the diagram of Figure 4.

EXAMPLE 3 Preparation of an Attracticide Surface layer made of Gelatin and Tetramethrin

We have:

 • pork gelatin (260 bloom), manufactured by Weishardt,

 • Glucose syrup 3072, manufactured by Roquette and distributed by IMCD,

 • sucrose, made by Sugars and Services,

 • 80/20 tetramethrin manufactured by Limaru NV,

• Estasol ^® manufactured by Dow Chemical Company,

 • household vinegar at 14 °, made by Charbonneaux Brabant,

 • tartrazine dye (DINA).

Operating mode

 a) 6.94 g of pork gelatin (260 bloom) are mixed with 28.2 g of tap water and the mixture is left at room temperature for 15 min without stirring.

 b) 25.11 g of glucose syrup 3072, 25.16 g of sucrose and 1.8 g of tap water are introduced into a beaker, then the whole is heated with magnetic stirring in a water bath at 70 ° C. until a clear liquid mixture homogeneous.

 c) The moistened gelatin is introduced into the sugar solution at 70 ° C with stirring until a homogeneous liquid solution.

d) 3.05 g of tetramethrin 80/20 previously dissolved in 8.75 g of Estasol ^® are introduced under strong magnetic stirring into the gelatin solution obtained in c) to obtain an attractive gelatin solution e) 1 g of household vinegar at 14 ° is then added, still with magnetic stirring in the active solution obtained in d)

 f) 0.1 g of tartrazine dye is added to the solution obtained in e); g) The solution obtained in g) is cast on the polyurethane bottom obtained in Example 1.

 h) After cooling for 15 minutes at room temperature, the gelatin solid gelatinous surface layer of the color of the active base to which it adheres is obtained.

Claims

1) Autonomous attracticide device (1, 2, 3) for combating harmful flying insects and particularly flies based on the concentration on said device of a fly attractant beam specifically attracting said insects to a toxic surface characterized by what W consists of:

 a) an inert carrier (12) of variable circular, polygonal or triangular shape of inert material, of attractive color for the flies and contrasting both with the active bottom (13) and with the environment of use of said device (1 , 2, 3); b) an active base (13) of shape identical or not to the shape of the inert support (12), but also variable circular polygonal or triangular, of dimensions 15% to 25% smaller than those of the inert support to which it is adhered and whose marginal overflow forms a strip (14) of color contrasting with the color of said inert support;

 c) a discontinuous surface layer of granules or crystals (15) of attractive coloration for flies and contrasting with the color of the active background (13), said granules or crystals (15) consisting of a mixture of active ingredients

2) Device according to claim 1 characterized in that the beam of attractants is a combination of stimuli "color vision + olfaction + taste" being defined as:

- Color vision obtained by the use of specifically attractive colors for the species of targeted flies, and the combination of said colors by playing on the contrasts to color the different constituent parts of the device;

- Olfaction obtained by the use of long-range scent molecules, preferably pheromones and kairomones specific to targeted fly species;

- Gustation obtained by the use of a food necessarily in the solid state and preferably in granules or crystals, said food being specific to targeted fly species. 3) Device according to claim 1 characterized in that the support (12) is a template ranging from 5 centimeters to 100 centimeters in diameter, side or diagonal in the form and flat profile, convex or concave.

4) Device according to one of claims 1 and 2 characterized in that the active background is a cast polyurethane matrix consisting of a mixture of:

 from 8% to 10% by weight of an isocyanate prepolymer;

 89.40% to 9.40% by weight of a polyol;

 0.02% to 0.04 by weight of a catalyst;

 0.40% to 0.60% by weight of an anti-UV agent;

 o 0.05% to 5% of a sex pheromone for flies or at least one odorous attractant;

 o 0, 1% to 0.3% of an attractive dye for flies and contrasting with the color of the support.

5) Device according to one of claims 1 and 2 characterized in that the mixture of attractive assets and toxic assets for flies comprising:

 84% to 90% by weight of a food or an inert material bearing at least one kairomone, including kairomones derived from microorganisms,

 8% to 12% by weight of liquid contact insecticide,

0, 1% to 1% by weight of liquid dye contrasting with the color of the cast polyurethane matrix and

 • 1% to 3% by weight of drying

6) Device according to one of claims 1 to 5 characterized in that the surface layer attracticide is in a gelatin matrix and adheres to the cast polyurethane active base (13).

7) Device according to claim 6 characterized in that the gelatin matrix comprises:

 1% to 20% by weight of gelatin,

 25% to 90% by weight of sugars,

 - 2% to 15% by weight of contact insecticide,

 - 15% to 70% water,

- 0.001% to 1% dye of the color of the active background. 8) Device according to one of claims 1 to 7 characterized in that the active ingredients, and especially food or inert material carrying at least one kairomone including kairomones from microorganisms and the contact insecticide are maintained in full on the contact surface of the cast polyurethane active bottom (13).

9) Device according to one of claims 1, 2, 6 and 7 characterized in that the active ingredients, and especially foods or inert material carrying at least one kairomone including kairomones from microorganisms and the contact insecticide are held integrally on the gelatin surface layer of the device (1, 2, 3).

10) Device according to one of claims 1 to 9 characterized in that the active mixture is in the form of granules or crystals (15) of food or an inert material bearing at least one kairomone coated with insecticide contact and dye.

1 1) Device according to one of claims 1 to 1 1 characterized in that the contact insecticide is of natural origin, synthesis or biopesticides microorganisms, specific to the species of targeted flies.

12) Device according to one of claims 1, 2, 3, 5 to 1 1 characterized in that the contact insecticide is in concentrated form and adsorbed on the granules or crystals (15) of food or inert material carrying at least one kairomone on the surface of the active bottom (13).

13) Device according to one of claims 1 to 12 characterized in that the pellets or the crystals (15) of food or the inert material carrying at least one coated kairomone adhere to the active background (13) in a discontinuous layer

14) Device according to one of claims 1 and 4 characterized in that the sensitive substances, pheromones and kairomones, including kairomones from microorganisms, incorporated into the matrix polyurethane cast, and in the gelatin matrix the case where appropriate, remain free from external denaturing factors such as oxygen in the air or moisture and have a long-term diffusion constancy. 15) Device according to one of claims 1 and 3 characterized in that the inert support (12) is inert material selected from polystyrene, polyethylene, polypropylene, polyvinyl chloride, polycarbonate, polyamide, polyacetal , polyetheretherketone or polyethylene terephthalate, wood, materials of vegetable origin, metallic materials, materials of mineral origin.

16) A method of manufacturing an autonomous device for controlling harmful flying insects and particularly flies characterized in that it essentially comprises the steps of:

 a) arranging an inert polymer support on a casting plate of a casting machine;

 b) preparing a cast polyurethane by:

 i. preparing a polyol solution by mixing a liquid polyol with a catalyst, an anti-UV agent, a pheromone and a dye;

 ii. preparing a liquid isocyanate in another container;

 iii. load the two components thus prepared each into its respective reservoir;

 iv. mixing the two components in a turbine to obtain a polyurethane to be cast;

 c) pouring through a nozzle the liquid polyurethane poured on an inert polymer support to the desired thickness and allow polymerization;

 d) further preparing a mixture of assets according to the steps of: i. put in liquid form an insecticide;

 ii. mix with agitation the liquid insecticide and the liquid dye; iii. always stirring a feed granules or crystals in the liquid mixture obtained in ii;

 iv. introduce a drying and continue mixing until drying; e) collecting the dry mixture of active ingredients thus obtained in d);

 i) optionally preparing liquid gelatin according to the steps of:

 i. mix gelatin with water and leave at room temperature without agitation;

H. further mixing glucose syrup, sucrose and water with stirring at 70 ° C to obtain a sugar solution; iii. introducing, still stirring at 70 ° C, the gelatin mixture obtained in i in the sugar solution obtained in ii until a homogeneous gelatin solution is obtained;

 iv. stirring the sensitive substances in the gelatin solution obtained in iii to obtain the gelatin solution attracticide; v. add the dye identical to that of the polyurethane bottom obtained in step c);

 g) if appropriate pour the liquid gelatin on the polyurethane bottom obtained in c) to form an attracticide gelatin surface layer;

 h) distributing the active mixture on the cast polyurethane matrix which is in the advanced polymerization stage, or

 i) if necessary, distribute the mixture of active ingredients obtained in d) on the attracticide surface layer in gelatin and allow to solidify;

 j) awaiting the end of the polymerization of the active background thus formed;

 k) Pack the device in an airtight package.

17) A method according to claim 16 characterized in that the mixture of attractive active agents and insecticide is applied to the surface of the cast polyurethane matrix still in the polymerization phase, to appear at the end as a discontinuous layer of granules or coated crystals (15) which adhere well to said active bottom (13) thus formed.

18) Method according to one of claims 16 and 17 characterized in that the solid food or solid inert material bearing at least one kairomone is not dissolved in the liquid mixture formed by the insecticide and the dye, both in the liquid state.

19) Method according to one of claims 16 to 18 characterized in that the granules or crystals of food or inert material carrying at least one kairomone are coated with the mixture of insecticide and dye both liquid through the 'drying.

20) Method according to one of claims 16 to 19 characterized in that the dye and the insecticide are adsorbed in the concentrated state on said granules or said crystals.