BRPI0712067A2 - paper impregnated with insecticidal active substances - Google Patents

Abstract

IMPREGNATED PAPER WITH INSECTICID ACTIVE SUBSTANCES. An insect control device is described that includes a paper holder capable of burning, characterized by the fact that it is provided with at least one active insecticidal substance.

Description

Patent Descriptive Report for "IMPREMENTED PAPER WITH INSECTICATED ACTIVE SUBSTANCES".

The present invention relates to a paper impregnated with insecticidal active substances, a process for its preparation and its use for insect control.

It is known that it is possible to kill or repel insects, for example mosquitoes, with the aid of electric heaters, for example, the so-called tablet vaporizers. In this process suitable substances such as cellulose and cotton board, asbestos, ceramics and / or porous synthetic resins are impregnated with insecticidal active substance solutions, whereby insecticidal tablets are obtained. Insecticides are volatilized by the action of a heater that produces a temperature of 120 to 190 ° C.

Substantial disadvantage of these tablet vaporizers is that these vaporizers do not disperse the active substances evenly during the prescribed time. Most active substance release is unnecessarily high at the beginning of operation and then decreases continuously and strongly. The effectiveness of these vaporizing tablets weakens over the period intended for use.

Household vaporizers have also been known for some time, as for example described in GB-B-2 153 227; Here a liquid vaporizes, the active substance being dissolved, for example, in a mixture of saturated aliphatic hydrocarbons by means of an electrically heated wick.

The enormous amounts of organic solvents required for these so-called liquid vaporizers in relation to the active substance lead to an undesired high concentration of solvents in the enclosure, which leads, among others - constantly being complained about by users - dirtying walls and objects near these appliances.

To repel the pest of annoying insects, battery-operated vaporizers are known in which the surface of a radiation plate for spraying an insecticide is heated to a temperature between 90 and 130 ° C (DE 195 25 782 A1).

In addition, DE 20 2004 008 226 Ul discloses insect-fighting fuel bodies, particularly crickets, which have a support structure provided with pores and / or hollow spaces and a wax and / or paraffin oxidizer. and / or stearin, the oxidizer containing a fraction of citronella oil.

In addition, spraying of insecticides with the aid of electrically driven fans is known, which blow an air flow over a support impregnated with a solution of insecticide active substances. Fan systems of this type are described, for example, in WO-A-96/32843.

From EP-B-O 279 325 325 natural and synthetic transfluthrin-impregnated substances are known, for example also antique papers.

From DE 199 47 146 A1 support materials are known which are impregnated with 0.05 mg / cm2 transfluthrin series active substance, strong pinamine, vaportrin, pralethrin. Supporting materials are used at room temperature to combat flying insects indoors. Because of the volatility of insecticidal active substances, they are released from the support material and thus provide a certain concentration of insecticidal active substance in the air. The systems described in DE 199 47 146 A1, however, are disadvantageous, since on the one hand, longer-term storage already releases the insecticide active substances, making it unclear to the user what effect such a system would have. already stored actually produces in later use. On the other hand, the release of the insecticidal active substance from the system is not effective enough.

In addition, fumigation coils are known, such as Baygon® CoiIs that protect for a period of 6 to 12 hours against mosquitoes, for example on terraces, balconies, in campsites or in the bedroom. For the use of the rings, they are lit with which the ring is red-hot so that the active substance contained therein is slowly and continuously released outdoors or in the enclosure. For an enclosure of approximately 20 m2 a commercially obtainable ring is required. However, the disadvantage of these rings is that during use they tend to break easily so that only part of them can be worn.

In addition to insect control, aerosols or oil-based sprays are used in order to quickly rid insects indoors. Enclosures treated in this manner may then be re-ventilated provided that new insects cannot be entered. Corresponding systems, however, have the disadvantage that aerosol mist or oil spray mist, by virtue of their mass, is not distributed sufficiently thinly in environments.

It is common to all these products that they are technically and logically complicated, slow and therefore expensive to produce. In addition, the preparation of quantitatively larger aerosol products, oil-based sprays and spirals requires the consumption of a huge amount of natural resources such as kerosene, propane / butane, sawdust, adhesives, starches as well as a variety of auxiliary agents. formulation. Their use also requires the subsequent disposal of the corresponding packaging, such as cans, valves, plastic bottles, outer packaging, etc.

Thus, in view of the state of the art described above, it is the task of the artisan to provide an insect fighting device that avoids as much as possible the disadvantages mentioned above.

The solution to this task begins with a first embodiment of an insect-fighting device, which includes a burnable support.

Support is characterized by the fact that it is provided with at least one active insecticidal substance.

Thus, according to the invention, a first embodiment provides for the preparation of an insect fighting device which is provided with a burnable support provided with at least one insecticidal active substance, for example by impregnation. The holder is configured according to the invention in such a way that - once lit - after extinguishing, for example by blowing or gusting wind, remains in arm and does not go out completely. By burning, the support releases at least the active substance insecticide, with which the fight against insects occurs.

Support

Within the scope of the present invention the carrier is not subject to any restriction provided that while it is burning it is able to release at least the insecticide active substance.

Suitable as a support is, for example, a cellulose-based support. In this connection, for example, a paper support is mentioned, which is described below in more detail within the scope of a preferred embodiment. Other cellulose-based materials are, for example, wood chips, wood chips or sawdust, rice husks, corn cobs (preferably without grains), pecan shells and peanut shells. Particularly also thin wood chipboard may be used as a support material. A corresponding cellulose-based support is described, for example, in German patent application DE 43 223 76 A1, the contents of which are incorporated herein by reference.

Another possible support is based on textile materials. This carrier may contain partially or in whole synthetic fibers such as polyester or nylon or natural fibers such as cotton, viscose, a linen-viscose blend or a mixture of synthetic and natural fibers such as cellulose-polyester (synthetic paper). ) or cotton-polyester. Other examples are wool-feltine ("Woll-Feltine") and Trevira-setim.

Another possible support is based on burnable synthetic materials such as polycarbonates, polyesters, polyamides and polyetherphalts. Thus, it has been found within the scope of the present invention that the support element for the insecticidal active substance may be made of synthetic material into which, prior to the definitive preparation and formation process for the support element, the active substance. This is characterized within the scope of the present invention by the fact that its activity is not adversely affected or is only slightly adversely affected by the support element formation process, however, however, in the burning of the synthetic material support can be released from this with an essentially constant evaporation rate. Particularly suitable for the preparation of the support is the injection molding process whereby to the starting material of the synthetic material, for example a polycarbonate, the insecticidal active substance, for example a pyrethroid, may be added by mixing and this mixture is mixed. then processed into an injection molding form in the definitive form shown. Alternatively they are offered as finishing processes, for example also extrusion or deep drawing.

Within the scope of the present invention it is particularly preferred to use a cellulose based support.

Furthermore, within the scope of the present invention, the use of a paper support is particularly preferred.

The solution to the task of the present invention starts from a very particularly preferred embodiment of an insect fighting device comprising a burnable paper carrier.

The paper carrier is further characterized by the fact that it is provided with at least one insecticidal active substance.

According to the invention, in this very particularly preferred embodiment there is provided the preparation of an insect combating device comprising a burnable paper carrier provided with at least one insecticidal active substance, for example. , by impregnation. The paper support according to the invention is configured such that - once ignited - once extinguished, for example by blowing or blowing, it remains red-hot and does not completely erase. By burning, the paper support releases at least one insecticidal active substance, thereby causing insect control.

In a particular embodiment of this very particularly preferred embodiment of the present invention, the device according to the invention consists of the carrier, particularly the paper carrier, of at least one insecticidal active substance and optionally other additives such as nitrate potassium Other additives are described below.

Cellulose Based Support - Paper Support

The device according to the invention according to the first embodiment comprises a paper support. The paper support contains cellulose. Under cellulose, within the scope of the present invention is meant the mass which results from the chemical digestion of plant fibers (in most cases wood) and which consists predominantly of cellulose.

Paper carriers of the type according to the invention have long been known, but not in the field of insect control. About 150 years ago, a paper backing was impregnated with the Asian vegetable resin "Stirax", and the resulting product was called "armenian paper". This "Armenian paper" is used to counteract the smell of food and tobacco and other unpleasant smells. The Frenchman Auguste Poncet brought from one of the trips to Armenia the resin that is also used for the production of incense and so remembers its smell. Paper is sold in blocks with different amounts of sheets. For use of this paper a sheet is taken from the block, lit in an ashtray and then erased so that I burn slowly without fire. During burning, the paper releases the desired aromas and provides a pleasant aroma around it. The paper substrate according to the invention is similarly used.

Basically there is no particular limitation on the use of the paper carrier employed provided that it is generally appropriate to absorb at least one insecticidal active substance and, upon being lit and then erased, to release at least one insecticidal active substance without substantially decompose.

However, it has been found that paper carriers preferably having a paper weight of 25 to 300 g / m2, particularly 25 to 270 g / m2, particularly preferred 25 to 250 g / m2, most particularly preferred 25 to 300 g / m2. 230 g / m 2, and even more particularly preferred 25 to 215 g / m 2, particularly 25 to 200 g / m 2, are especially suitable for the purpose of the invention.

In addition, it is preferred when the thickness of the paper support is in the range 0.1 to 0.5 mm, particularly preferred 0.15 to 0.45 mm, most particularly preferred 0.15 to 0.40, and even more particularly preferred is between 0.15 and 0.34 mm, especially 0.15 to 0.32 mm.

There is no restriction on the individual size of the paper carriers of the present invention. However, the paper support according to the invention should be present cut so that it can be properly used by the user, that is, for example, having a size that makes it possible to let the paper support burn in. of a container, for example an ashtray.

The paper support, for example to be employed in accordance with the invention may be, for example, a cardboard support, for example, absorbent cardboard, paperboard or corrugated cardboard. Insecticide Active Substance

In the device according to the invention a carrier may be used, particularly a paper carrier which is provided with only one insecticidal active substance. Alternatively it is also possible for two or more insecticidal active substances to be provided simultaneously on the support, particularly on the paper support, such as 2, 3 or 4 insecticidal active substances.

The choice of the appropriate insecticidal active substance is subject to only one limitation, namely that the insecticidal active substance under the firing temperature of the carrier, particularly the paper carrier, of approximately 350 to 600 ° C is released essentially without - composition in the surrounding atmosphere, essentially without losing its insecticidal effect. By "essentially no decomposition" is meant within the scope of the present invention when the decomposition is at most 80%, preferably at most 70%, particularly preferred at most 60%, very particularly preferred at most 50%. %, especially at most 40%. In a first embodiment of the present invention the paper substrate is impregnated with at least one insecticide active substance chosen from the group consisting of acrinatrine, allethrin, d-allethrin, d-trans-allrethin, d-cis-trans-allethrin, alphaamethrin, batrin, bifenthrin, bioalethrin, S-bioalethrin, bioalerin-S-cyclopentyl isomer, bioetanometrine, biopermetrin, biorestruth, clocitrin, clovaportrin, cycloprotrin, cyfluthrin, beta-cyfluthrin, gamma-cyrothinotropin, cyhalothrin, cypermethrin, alpha-cypermethrin, beta-cypermethrin, cis-cypermethrin, theta-cypermethrin, zeta-cypermethrin, cyphenetrine, depalethrin, empenthrin, empenthrin (1R-isomer), esbenetrine, esfenenetrine, esfenenetrine, esfenentrin, fenfluthrin, fenpropatrin, fenpyritrin, fenvirate, flubrocitrinate, flucitrinate, flumethrin, fubfenprox, imiprotrin, cadetri, metofluthrin, neopinamine, permethrin, cis-permethrin, trans-permethrin, phenothrin, pfenotrin rans), d-phenothrin, pralethrin, profluthrin, protrifenbuto, strong pinamine, pyresmethrin, pyrethrin, resmetrin, cis-resetrin, RU 15525, silafluofen, tau-fluvalinate, tefluthrin, tetramethrin (phthalethrin), tetramethrin (tetramethrin) ), teralethrin, tralometrine, transfluthrin, ZXI 8901, pyrethrin (pyretrum) and any other mixture of the above-mentioned active substances.

In another embodiment the insecticidal active substance may be chosen from the following active substances, and the following insecticidal active substances may be used alone or in any combination with each other, as well as in any combination with the active substances. active insecticides mentioned above.

Acetylcholinesterase (AchE) Carbamate Inhibitors,

for example alanicarb, aldicarb, aldoxycarb, allixicarb, aminocarb, bendiocarb, benfuracarb, bufencarb, butacarb, butocarboxim, butoxycarboxim, carbaryl, carbofuran, closulfan, cloetocarb, dimethylan, ethiofencarb, phenobarbate, phenobarbate , metam-sodium, methocarb, methomyl, metolcarb, oxamyl, pyrimicarb, pre-carb, propoxur, thiodicarb, thiophanox, trimetacarb, XMC, xylylcarb, triazamate Organophosphates, for example acetate, azametifos, azinfos (-methyl, -ethyl), - fos-ethyl, bromfenvinphos (methyl), butathiophos, cadusaphos, carbophenothione, chloridexiphos, chlorophenvinphos, chloromorphs, chloropyrifos (methyl / ethyl), coumaphos, cyanophenphos, cyanophos, chlorophenvinphos, demeton-S-methon methylsulfone, dialiphos, diazinone, diclofentiona, dichlorvos / DDVP, dichrotophos, dimethoate, dimethylvinphos, dioxabenzophos, disulfotone, EPN1 etione, etoprofos, ettrimphos, famphur, fenamiphos, fenitrothione, fensulfonate, razonphosphione, formothiona, fosmetilane, fostiazate, heptenophos, iodophenophos, iprobenphos, isazofos, isofenphos, isopropyl O-salicylate, isoxationa, malationa, mecarbam, methacrophos, metamidofos, metidationa, mevinfos, monocrotethethoxymetho-parate (ethyl), phentate, phorate, fosalone, fosmet, phosphamidone, phosphocarb, foxima, pyrimiphos (methyl / ethyl), profenofos, propafos, propetamphos, protiofos, protoato, piraclofos, pyridafenthione, pyridationa, quinalfos, sebufos, sebufos , sulprofos, tebupirimfos, temefos, terbufos, tetrachlorovinfos, thiometone, triazofos, triclorfon, vamidotiona

Sodium Channel Modulators / Voltage Dependent Sodium Channel Blocker

DDT

Oxadiazines,

for example indoxacarb semicarbazon,

e.g. metaflumizon (BAS3201) Acetylcholine receptor agonists / antagonists

Chloronicotinils,

for example acetamipride, clotianidine, dinotefuran, imidachlopride, nitenpiram, nitiazine, thiaclopride, thiametoxam Nicotines, bensultap, cartap Acetylcholine Receptor Modulators

Spinosinas,

e.g. spinosad,

GABA-controlled chloride channel antagonists Organochlorines,

e.g. camflor, clordane, endosulfan, gamma-HCH, HCH, heptachlor, lindane, methoxychlor

Fioles,

e.g. acetoprole, etiprole, fipronil, pirafluprole, pyriprole, vaniliprole

Chloride Channel Activators

Mectins,

e.g. abamectin, emamectin, emamectin benzoate, ivermectin, lepimectin, milbemycin

Juvenile hormone mimetics,

for example diofenolan, epophenonane, phenoxycarb, hydroprene, quinoprene, methoprene, pyriproxyfen, triprene

Ecdysone Agonists / Disruptors

Diacylhydrazines,

e.g. chromafenozide, halofenozide, methoxyfenozide, tebufenozide

Chitin Biosynthesis Inhibitors

Benzoylureas,

for example bistriflurone, clofluazurone, diflubenzurone, fluazurone, flucicloxurone, flufenoxurone, hexaflumurone, lufenurone, novalurone, noviflumurone, penflurone, teflubenzurone, triflumurone

Buprofezin

Cyromazine

Oxidative phosphorylation inhibitors, ATP disruptors Diafentiurone

Organic tin compounds,

for example azocyclotine, cyhexatin, fenbutatin oxides

Oxidative phosphorylation decouplers by breaking the proton gradient H

Pyrroles,

for example chlorophenapyr Dinitrophenols,

eg binapacrila, dinobutone, dinocap, DNOC Electron Transport Inhibitors of Iado-I METI's,

e.g. phenazaquin, fenpyroximate, pyrimidifene, pyride beno, tebufenpirad, tolfenpirad Hydramethylnone Dicofol

Iado-Il Rotenona Electron Transport Inhibitors

Iado-Ill Electron Transport Inhibitors Acequinocila, Fluacripirime

Microbial Insect Intestinal Membrane Disrupters Bacillus thuringiensis Strains Tetronic Acid Fat Synthesis Inhibitors,

e.g. spirodiclofen, tetramic acid spiromesifen,

for example spirotetramate, cis-3- (2,5-dimethylphenyl) -4-hydroxy-8 methoxy-1-azaspuri [4.5] dec-3-in-2-one carboxamides, for example, flonicamide Octopaminergic agonists, for example amitraz

Magnesium-stimulated ATPase inhibitors, propargite

nereistoxin analogues

e.g. thiocyclam hydrogen oxalate, thiosultap-sodium

Ryanodine receptor agonists,

benzoic acid dicarboxamides,

for example flubendiamide

anthranilamides, for example rinaxipyr (3-bromo-N- {4-chloro-2-methyl-6 - [(methylamino) carbonyl] phenyl} -1- (3-chloropyridin-2-yl) -1H-pyrazole -5-carboxamide) Biological products, hormone or pheromones

azadiractin, Bacillus spec., Beauveria spec., codlemone, Metarrhizium spec., Paecilomyces spec., thuringiensin, Verticillium spec.

Active substances with unknown or non-specific effect mechanisms

Gas absorption agents,

for example aluminum phosphites, methyl bromides, sulfuryl fluorides

Devouration inhibitors, eg cryolite, flonicamid, pimetrozine Mite growth inhibitors, eg clofentezine, ethoxazole, hexitiazox

Amidoflumet, benclothiaz, benzoxime, biphenazate, bromopropylate, buprofezin, cinomethionate, chlorodimeform, chlorobenzylate, chloropicrin, clothiazoben, cycloprene, ciflumetofen, dicyclanyl, phenoxacrim, phentiphanil, flubenzimonate, flubenzimine, flubenzimine, flubenzimonate piperonyl butoxides, potassium oleate, pyridalyl, sulfluramide, tetradifone, tetrasul, triaratene, verbutin.

An insecticidal active substance is understood within the scope of the present invention to be a repellent or synergistic active substance.

Repellent-made active substances may also be employed alone or in combination with other active substances such as diethyltoluamide (DEET) and picanidine.

Regarding the content of insecticide active substance there are no restrictions on the support provided according to the invention, particularly paper support. However, it has been shown as preferred that the insecticide active substance content is 0.01 to 100.0 mg / 24 cm2 paper surface, particularly preferred 0.05 to 80 mg / 24 cm2 paper surface , particularly particularly preferred 0.1 to 60 mg / 24 cm2 paper surface, even more particularly preferred 0.15 to 40 mg / 24 cm2 paper surface, especially 0.20 to 20 mg / 24 cm2 paper surface , each being based on a support, particularly a paper support, which has the aforementioned paper weight and the aforementioned paper thickness.

The carrier, particularly paper carrier, in the insect fighting substances according to the invention may contain further ingredients. An essential ingredient is potassium nitrate, which causes the carrier, particularly the paper, not to burn completely, but to remain incandescent after it has been lit and subsequently extinguished. The amount of potassium nitrate in the carrier according to the invention, particularly paper carrier, is not subject to any restriction. It has been shown, however, to be preferred when the amount of potassium nitrate is from 5 to 50 g / m2, particularly preferred from 7 to 45 g / m2, most particularly preferred from 9 to 40 g / cm2, even more particularly. It is preferred from 10 to 35 g / cm 2, especially from 12 to 30 g / cm 2.

The carriers to be employed according to the invention, particularly paper carriers, furthermore may contain natural and / or synthetic flavorings as well as organic and inorganic colorants.

Natural aromatics can be chosen, for example, from the group consisting of ambreta, civet, amber, castereum and similar aromatics: ajowan oil, almond oil, abs. from angelica root, anisole, basil oil, bay oil, synthetic benzoin resin, bergamot essence, birch oil, paella oil, abs., "Cajeputõl", cananga oil, "Gapiscumõl" ", caraway oil, cadamom oil, carrot seed oil, cassia oil, cedar oil, celery seed oil, cinnamon bark oil, citronella oil, salveta essence (" Muskattersalbeiõl ") clove oil, brandy oil, coriander oil, cubeba oil, camphor oil, dill oil, tarragon oil, eucalyptus oil, fennel seed oil, calbano synthetic resin, garlic oil, geranium, ginger oil, grapefruit oil, hop oil, hyacinth abs., jasmine ab s., juniper oil, synthetic labdanum resin, lavender oil, bay leaf oil, lemon essence, citronella oil, "Liebstöckelõl", nutmeg oil, tanergine oil, Nfisoma abs., myrrh abs., mustard oil, daffodil absolute, black oil, musk oil, oak moss abs., frankincense synthetic resin, onion oil, opopanax synthetic resin, orange essence, flower essence iris concrete, pepper oil, peppermint oil, peppermint oil, peppermint oil, turkey balm, petit grain oil, fir needle oil, rose abs., rose essence, rosemary oil, oil sandalwood, sagebrush oil, curly mint oil, turpentine oil, thyme oil, tolu balm, tonca abs., tuber tuber abs., turpentine, vanilla bean abs., vetiver oil, abs. violet leaves, ylang-ylang oil and similar oilseeds, and others.

As synthetic aromatics the following may be added to the carrier materials according to the invention, particularly paper carriers: Pinenes, Iimonene and similar hydrocarbons, 3,3,5-trimethylcyclohexanol, linalol, geraniol, nerol, citronellol, menthol, borneol, borneyl methoxycyclohexanol, benzyl alcohol, anisal alcohol, cinnamic alcohol, B-phenylethyl alcohol, cis-3-hexanol, terpineol and the like alcohols; anethole, musk-xylene, iso-eugenol, metileugenol and similar phenols; amylcinamic aldehyde, anisaldehyde, n-butyraldehyde, cuminaldehyde, cyclamenaldehyde, decylaldehyde, isobutyraldehyde, hexylaldehyde, heptylaldehyde, n-nonylaldehyde-nonadienol, citral, citronellal, hydroxycitronellal, benzaldehyde, methyl aldehyde, aldehyde aldehyde cinnamic, undecanal, heliotropin, vanillin, ethylvanillin and similar aldehydes, methylamyl ketone, methyl β-naphthyl ketone, methyl nonyl ketone, musk ketone, diacetyl, acetylpropionyl, acetylbutyryl, carvone, metone, canon, acetophenone, p-methylacetone ionone, methionone and similar ketones; amyl butyrolactone, diphenyl oxide, methyl phenylglycate, nonylacetone, coumarin, cineol, ethyl methylphenylglycate and similar lactones or oxides, methyl formate, isopropyl formate, ethyl acetate, ethyl acetate, octyl acetate, methyl acetate, benzyl acetate, cinnamyl acetate, butyl propionate, isoamyl acetate, isopropyl isobutyrate, geranyl isovalerate, allyl capronate, butyl haptilate, octyl caprylate, methyl heptin carboxylate, methyl octincarboxylate, isoamyl caprylate, methyl laurate, ethyl myristate, methyl myristate, ethyl benzoate, benzyl benzoate, methyl carbinylphenylacetate, isobutyl phenylacetate, methyl cinnamate, stiracin, methyl salicylate, ethyl anisate, methyl anthranylate, ethyl butylbutyrate, benzyl propionate, butyl acetate, p-tert-butylcyclohexyl acetate, cedril acetate, citronellyl acetate, citronelyl formate, p-cresyl acetate, ethyl butyrate, ethyl caproate, ethyl cinnamate, ethyl phenylace tactate, ethylene brassylate, geranyl acetate, geranyl formate, isoamyl salicylate, isoamyl valerate, isobornyl acetate, linalyl acetate, methyl anthranylate, methyl dihydrojasmonate, nonyl acetate, β-phenethyl acetate, trichloromethylene phenylcarbinyl acetate, teriveryl acetate and the like terteryl acetate . These aromatics may be employed alone or at least two of them may be employed in admixture with each other. In addition to aromatics, the formulation according to the invention may optionally contain the usual aromatics additives such as patchouli oil or similar volatilization inhibiting agents such as eugenol or similar viscosity regulating agents.

The products according to the invention may also contain deodorizing agents such as lauryl methacrylate, geranyl chronate, acetophenone myristate, p-methylacetophenone benzaldehyde, benzyl acetate, benzyl propionate, amylcinamic aldehyde, anisaldehyde, diphenyl oxide, methyl benzoate, ethyl banzoate, methyl phenyl acetate, ethyl phenyl acetate, neoline, safrol etc.

The carriers according to the invention, particularly paper carriers, may furthermore contain synergists such as octachlorodipropylether and piperonylbutoxide, either alone or in combination with the above mentioned insecticidal active substances.

Matrix

The insecticidal active substance may still be present in a matrix on the support, particularly paper support. By using a matrix material in which the insecticide active substance is incorporated, it is achieved that the insecticidal active substance essentially does not escape after preparation and prior to use of the product according to the invention and that the product according to the invention do not modify its structure. Suitable matrix materials are all systems which prevent at least the insecticidal active substance from escaping from the support material, particularly the paper support, under normal ambient conditions (239C, 1013 mbar).

Organic substances which are suitable as matrix materials include polyvinyl alcohol, wheat protein and its derivatives, carbohydrates, starches (from different plant sources), amylose and its derivatives, amylopectin and its derivatives, cellulose and its derivatives, starches. hydrolysates, modified starches, maltodextrin, hydroxypropyl methylcellulose (HPMC), polyvinylpyrrolidone (PVP), chitin, chitosan, polysaccharide gums and their derivatives, polyethylene glycol, polyester, hydroxyalkyl starches, polyvinyl cellulose pyrrolidone derivatives, gelatins, protein solubles, polyacrylamides, polyamines, styrene-maleic acid anhydride resins, polyethylene amine, xanthan gum.

Other examples may include polyacrylates such as cross-linked or epoxidized maleinized polymers and cross-linked (meth) acrylate polymers. Preferred are condensation products of a maleinized or epoxidized polymer and a crosslinker, preferably a polyamine. Suitable polymers are, for example, polydienic reaction products such as polybutadiene, polydecadiene and soybean oil having a molecular weight of over 400 g / mol with maleic acid anhydride, and olefin copolymers such as ethylene with anhydrous anhydride. maleic acid as well as epoxidized polybutadiene. Preferred crosslinkers are polyamine, particularly polyoxypropylenediamine and poloxypropylenetriamine.

In addition they are also suitable as a triethylene glycol, polyethyleneimine and urea crosslinker. The cross-linking reaction is preferably carried out in alcoholic solution, for example in dipropylene glycol under elevated temperature. Maleic acid anhydride groups or epoxy groups or the - NR-CO- groups of the crosslinked polymer and the -CRH-O- polyoxyalkylene polyamine groups have hydrophilic action.

Another class of cross-linked polymers are copolymers of monofunctional (meth) -acrylate monomers, for example ethylene glycol dimethacrylate or polyethylene glycol-400-dimethacrylate. The preparation of cross-linked (meth) -acrylate polymers occurs by radical copolymerization of the monomers. In both cases, cross-linked polymers are capable of absorbing liquids and gases, for example finely divided insecticidal active substances in liquid, dissolved or dispersed form.

Also suitable as matrix formers are solid alkanecarboxylic acids and metal salts of alkanecarboxylic acids in gel form. Preferably, stearic acid and alkali metal salts of stearic acid, such as sodium stearate and, in addition, mixtures of stearic acid and palmitic acid or alkali metal salts thereof, for example mixtures of sodium stearate and palmitate, are mentioned. sodium. Corresponding matrix formers are described in DE 196 24 819 A1, the relevant disclosure of which is incorporated herein by reference.

Other examples may include inorganic substances, for example silicic acid, polysilicates, polyphosphoric acid and its derivatives, polyboric acids, clay, etc.

In addition, microencapsulated insecticidal active substances may be used. By micro-encapsulation of the individual insecticidal active substances, unwanted release under normal environmental conditions can be avoided. Corresponding systems are described in DE 100 22 989 A1, the relevant disclosure of which is incorporated herein by reference.

Preparation

Impregnated support materials to be employed according to the invention, in particular paper support materials, provided that the support, particularly the paper support is not impaired by the impregnation, may be prepared by all usual impregnation methods, for example. for example, by spraying the support with a solution of the insecticide and subsequent drying, for example, by air, or by dipping the support into an insecticidal solution and subsequent drying, for example, by air. Other suitable impregnation methods are pipette impregnation, ink-jet processing and screen printing.

The carriers, particularly paper carriers, of the insecticidal substances of the present invention may therefore be prepared, for example, in one embodiment by impregnating suitable carrier material, particularly paper, with a corresponding solution or emulsion. you. As a starting material, preferably carriers are used herein, particularly paper carriers of the above specification which have already been provided with the corresponding amounts of potassium nitrate. In another embodiment of the present invention the support, particularly paper support; It is provided with a glowing synergist. This may be, for example, potassium nitrate or potassium permanganate.

Corresponding solutions or emulsions with at least one insecticidal active substance may be water or oil based. They contain - in addition to at least one insecticidal active substance - possibly also other components such as potassium nitrate, antioxidants, for example phenol derivatives, particularly butylhydroxytoluene (BHT) 1 butylhydroxyanisole (BHA), bisphenol derivatives arylamines such as phenyl-α-naphthylamine, a phenetidine and acetone or similar condensate or benzophenones, and emulsifying agents for example, Span 80 or fatty acid esters.

As organic and inorganic auxiliary agents are suitable: ammonium salts and natural mineral flours such as kaolin, aluminum oxide, talc, chalk, quartz, attapulgite, montmorillonite or diatomaceous earth, synthetic mineral flours such as highly dispersed silicic acid, aluminum oxide and silicates; solid supports for granulates are suitable: for example, broken and fractionated natural minerals such as calcite, marble, pumice, sepiolite, dolomite, as well as synthetic granules of organic and inorganic flour as well as granules of organic materials such as sawdust, coconut shells, corn cobs and tobacco stalks; Suitable emulsifiers and or foaming agents are suitable: for example, anionic and nonionogenic emulsifiers such as polyoxyethylene fatty acid esters, polyoxyethylene fatty acid alcohol ethers, for example alkylaryl polyglycol ether, alkylsulfonates, alkylsulfates, arylsulfone as well as albumin hydrolysis products; Suitable dispersants are: for example ligninsulphite and methylcellulose leaches.

Insecticide-containing gel formulations according to the invention may employ adhesives such as carboxymethylcellulose, natural and synthetic polymers in powder, granule or latex form, such as arabica, polyvinyl alcohol, polyvinyl acetate as well as natural phospholipids. such as cephalins and Iecithins and synthetic phospholipids. Other additives may be mineral and vegetable oils.

Dyes may be employed as inorganic pigments, for example iron oxide, titanic oxide, ferrocyanide blue and organic dyes such as alizarin, azo and phthalocyanine metal dyes and trace nutrients such as iron salts, manganese, boron, copper, cobalt, molybdenum and zinc.

In a first embodiment, to apply the insecticidal active substance on the carrier, particularly the paper carrier, preferably a water-based solution or emulsion is employed.

In a second embodiment, to apply the insecticidal active substance on the support, particularly paper support, preferably an oil-based solution or emulsion is used, the solution being preferably based on kerosene such as isopar, and paraffin-containing solvents, by Isopar® (Exxon).

The insecticidal compositions according to the invention are particularly suitable for combating flying insects, for example mosquitoes and flies, for example of the genus Musca domestica, for combating moths, ants, mites and Lepisma saaccharina ("Silberfischen"). "). For this purpose, the holders, particularly paper holders, are ignited and immediately extinguished to burn in an appropriate container. The duration of the glow depends on the size of the support, particularly the paper support, and the amount of potassium nitrate in the support, particularly the paper support. The burn time is usually from 1 minute to several hours, depending on the support material, particularly the type and quality of paper and the type of paper load.

Insecticides according to the invention are suitable for use indoors, for example rooms, basements, food depots, stocks, silos, stables. Within the scope of the present invention it is also possible to use it outdoors, for example on terraces or in campsites.

The present invention is further explained by the examples below but is by no means restricted to the embodiments described in these examples.

1. Insect control test (1 m3 test chamber)

1.1 Materials Insects tested: 1. Aedes aegypti, species BioGenius 04, sensitive, 3 days old, both sexes 2. Culex quinquefasciatus, species BioGenius 05, sensitive, 3 days old, both sexes

1.2 Equipment wire baskets: length 8.5 cm, 0 8 cm plastic containers: 0 9.5 cm, height 4.5 cm

Sugary water: 10% crystal sugar (Pfeiffer & Langen) in tap water Test chamber: 1 m3 chamber with equipment

1.3 Ambient Conditions Temperature: 22SC

Relative humidity: 40%

Lighting: electric lighting

1.4 Means of combat:

a) Baygon rings:

0.03% transfIutrin (0.5 g corresponds to 0.15 mg transfluthrin)

b) Test paper (according to the invention)

82.2 cm2 surface test paper is impregnated with 0.66 mg transfluthrin. In the tests were used paper supports of the following measures:

(1) 35.7 cm2 (corresponding to 0.290 mg transfluthrin)

(2) 27.9 cm2 (corresponding to 0.225 mg transfluthrin)

(3) 18.6 cm2 (corresponding to 0.150 mg transfluthrin)

1.5 Execution of the test

Biological test with mosquito rings with definite amount of product in 1 m3 chambers with trapped insects.

In steel-bottom glass test chambers measuring (internal measurement) 0.84 m χ 0.87 m χ 1.37 m (= 1 m3 capacity), three baskets are placed in the upper third of the chamber. of wire (length 8.5 cm, diameter 8 cm), each basket containing 20 test insects (age: 3 to 4 days). A set amount of paper holders or rings (usually 0.5 g) are placed in the center of the bottom and lit at one end.

The time when 10%, 50% and 95% of the insects are killed is determined (KT 10, KT 50 and KT 95). The test insects remained 60 minutes in the chambers. The final amount of dead insects was then determined. All insects are removed from the containers and placed in clear plastic containers without insecticide. The containers are closed with perforated lids and fitted with 10% sugar solution impregnated cellulose wads. After the insects remained for 24 hours in this insecticide-free atmosphere, mortality was determined.

The tests were repeated three to five times.

Modification: 100% know-how (KT 100) is determined instead of 95% (KT 95). No repetition was made in view of the result of the first test.

1.5 Results

Efficiency of impregnated paper supports (according to the invention) compared to Baygon rings in 1 m3 chambers for yellow fever mosquitoes Aedes aegypti, species Bio-Genius 04, sensitive <table> table see original document page 23 </column> </row> <table> 1.6 Evaluation

A comparison of the above results shows that paper carriers according to the invention have a faster knock-down effect than Baygon rings relative to Aedes agypti and Culex quinquefasciatus.

2. Insect control test (20 m3 indoor test)

2.1 Materials

Insects tested: 1. Aedes aegypti, species BioGenius 04, sensitive, 3 days old, both sexes

2. Culex quinquefasciatus, species BioGenius 05, sensitive, 3 days old, both sexes

2.2 Equipment

Wire baskets: length 8.5 cm, 0 8 cm

Plastic containers: 0 9,5 cm, height 4,5 cm Pads: Cellulose

Sugary Water: 10% Crystal Sugar (Pfeiffer & Langen) in Tap Water

Test location: 20 m3 enclosure with equipment, glass container with spiral fixing device, fan

2.3 Environmental Conditions

Temperature: 23 ° C-26 ° C

Relative humidity: 40 - 47%

Lighting: electric lighting

2.4 Means of combat

a) Baygon rings:

0.03% transfluthrin (2.0 g corresponds to 0.6 mg transfluthrin)

b) Test paper (according to the invention) Papers are prepared by impregnating the following amounts of a solution containing 3 mg transfluthrin in 1 ml acetone.

(1) 0.6 mg transfluthrin (0.2 ml solution impregnated on an 18.6 cm2 sheet)

(2) 1.2 mg transfluthrin (0.4 ml solution impregnated in a

27.9 cm2 sheet)

(3) 2.4 mg transfluthrin <0.8 ml solution impregnated on a 35.7 cm2 sheet)

2.5 Process Execution:

The tests are done in a 20 m3 enclosure (I = 2.84 m, w = 2.33 rn, h = 3.03 m), according to figure 1, where the inner walls and the covering of the roof are steel (DIN 4571), the enclosure is provided with five windows. The floor is of unglazed tiles. Three wire baskets (I = 8.4 cm, diameter = 8.0 cm, mesh = 1.0 mm), each basket containing 20 test insects (age 3 to 4 days), are hung in the test enclosure. departing from the floor at a height of 1.80 m, 0.45 m apart, in positions A, B and C.

A ring is placed in a glass container that is placed in the middle of the enclosure on a 0.5 m support. The ring is fixed to a commercially available ring holder and lit at one end. A fan (0.2 m in diameter) with the blades upwards is placed under the container, which rotates in position 1 throughout the test time (firm Progress (Italy), type: 956 5780-04 W 11, 220 volts, 25 watts, 50 Hz).

The time when 10%, 50% and 95% of the insects are killed is determined (KT 10, KT 50 and KT 95). The test insects remained 60 minutes in the room. The final amount of dead insects was then determined. All insects are removed from the containers and placed in insecticide-free clear plastic containers. The containers are closed with perforated lids and fitted with cellulose wads impregnated with 10% sugar solution. After the insects remained for 24 hours in this insecticide-free atmosphere, mortality was determined.

The tests were repeated three to five times.

2.6 Results

Aerosol efficiency of impregnated paper carriers (according to the invention) relative to Baygon rings in 20 m3 enclosures for susceptible yellow fever mosquito Aedes aegypti species BioGenius 04. <table> table see original document page 27 </column> </row> <table> <table> table see original document page 28 </column> </row> <table> 2.7 Review

A comparison of the above results shows that paper carriers according to the invention have a faster knock-down effect than Baygon® rings with respect to Aedes agypti (factor 2 to 3.5) and Culex quinquefasciatus (factor 2 to 5).

3. Insect control test (20 m3 indoor test)

3.1 Materials

Insects tested: 1. Aedes aegypti, species BioGenius 04, sensitive, 3 days old, both sexes

2. Culex quinquefasciatus, species BioGenius 05, sensitive, 3 days old, both sexes

3.2 Equipment

Wire baskets: length 8.5 cm, 0 8 cm

Plastic containers: 0 9,5 cm, height 4,5 cm

Wads: cellulose

Sugary Water: 10% Crystal Sugar (Pfeiffer & Langen) in Tap Water

Test location: 20 m3 enclosure with equipment, glass container with spiral fixing device, fan

3.3 Environmental Conditions

Temperature: 249C - 25 ° C

Relative humidity: 36 - 47%

Lighting: electric lighting

3.4 Means of combat:

Test paper (according to the invention)

Test papers are produced by impregnating the aforementioned amounts of a solution containing 3 mg transfluthrin in 1 ml acetone.

(1) 0.15 mg transfluthrin (0.2 ml solution impregnated on an 18.6 cm2 sheet)

(2) 0.30 mg transfluthrin (0.4 ml solution impregnated on a 27.9 cm2 sheet) (3) 0.60 mg transflutrin (0.8 ml solution impregnated on a 35.7 sheet) cm2)

3.5 Process Execution:

The tests are done in a 20 m3 enclosure (I = 2.84 m, w = 2.33 m, h = 3.03 m), according to Figure 1, where the inner walls and roof covering are made of steel (DiN 4571), and the enclosure is provided with five windows. The floor is of unglazed tiles. Three wire baskets (I = 8.4 cm, diameter = 8.0 cm, mesh = 1.0 mm), each basket containing 20 test insects (age 3 to 4 days), are hung in the test enclosure. departing from the floor at a height of 1.80 m, 0.45 m apart, in positions A, B and C.

A ring is placed in a glass container that is placed in the middle of the enclosure on a 0.5 m support. The ring is fixed to a commercially available ring holder and lit at one end. Underneath the container is placed a fan (0.2 m in diameter) with the blades upwards, which rotates in position 1 throughout the test (details: see above).

The time when 10%, 50% and 95% of the insects are killed is determined (KT 10, KT 50 and KT 95). The test insects remained 60 minutes in the chamber. The final amount of dead insects was then determined. All insects are removed from the containers and placed in clear plastic containers without insecticide. The containers are closed with perforated lids and fitted with 10% sugar solution impregnated cellulose wads. After the insects remained for 24 hours in this insecticide-free atmosphere, mortality was determined.

The tests were repeated three to five times.

3. 6 Results

Aerosol efficiency of impregnated paper carriers (according to the invention) in 20m3 enclosures in relation to yellow fever-causing mosquitoes Aedes aegypti, species BioGenius 04, sensitive <table> table see original document page 31 </column> </row> <table> <table> table see original document page 32 </column> </row> <table> 3.7 Evaluation

The above tests show that the use of at least 0.6 mg transfluthrin is particularly suitable for 20m3 enclosures.

4. Determination of the (burning) behavior of paper-based vaporizers

4.1 Equipment

Standard Laboratory Equipment Stopwatch

1 m3 cameras or 20 m3 cameras

fans (only for testing in 20 m3 chambers)

Test body clamping devices

Lighter

collection containers

4.2 Execution

Prior to the start of the test, the parts to be tested are properly identified.

The models to be tested are placed on the intended fixing device: care must be taken to ensure that the test model is placed in such a way that there is no contact with other surfaces such as floors or collecting containers, which could negatively influence the course of the test (burning of the test model).

The test template is placed in the test chamber (1 m3 or 20 m3) and positioned so that it can be observed throughout the test phase. A fan may optionally be installed for testing in the 20 m3 chamber to simulate air circulation (positioning V in figure 3). The test model is lit with a lighter until a visible flame is obtained. The flame is immediately extinguished with a blow so that the test model will continue to burn on its own. Simultaneously, the timer is set to determine the glow time of the model under test. The model under test is observed throughout the test time (glow duration) and must be observed if:

- the test model burns continuously until the end - the test model burns evenly or in parts

- parts of the test model come off during the test

The measurement is made at least three times.

4.3 Evaluation

The test results are transferred to a table and evaluated. At least the most important factors listed below and shown in the table should be evaluated:

- incandescent phase duration (average value of three measurements)

- visual picture during the glow phase

4.4 Factors of visual assessment

a = fully burns optimally

b = parts come off during burning

c = the ember extinguishes

sf = scatters sparks

4.5 Test Chambers

a) 1 m3 chamber test, see figure 2

b) 20 m3 chamber test, see figure 3

5. Preparation of models for testing vaporizers based on incandescent paper

5.1 Equipment

Laboratory Standard Equipment

Stopwatch

V4A containers (35 χ 22 cm)

Greenhouse (up to 50 ° C)

Photographer Cylinder Press ("Fotowalzenstuhl")

Eppendorf 20 - 500 μl pipettes (including pipette tips)

Collector plate for photographers cylinder press

5.1 Paper Pretreatment

Pre-treatment paper is cut to DIN A 4 size and clearly marked with the corresponding identification number. DIN A 4 sheet of paper is carefully weighed (net weight).

Next, 500 g of 6% aqueous KNO3 solution are prepared. Note that deionized water should be used for the preparation of the solution. The finished solution is identified with the corresponding development number and transferred to a V4A container with a total capacity of about 1 liter. The paper is dipped in 6% KNO3 solution. Care should be taken to dip the entire DIN A 4 sheet into the solution. After 20 minutes the sheet of paper is taken out of solution and directly pressed with a photographers cylinder press in order to remove excess liquid. After pressing, the paper sheet is oven dried (at about 50 ° C) to the consistency of the dough and reweighed (gross weight).

The ready pretreated paper sheet is cut into 12 cm 2 test strips and properly identified.

5.3 Test Strip Impregnation

Using the Eppendorf pipette a defined amount of the active substance solution is placed on the test strip. Here it should be noted that the total quantity is evenly distributed over the surface. The impregnated test strip is identified with the corresponding development number and enclosed in air-tight aluminum foil. At least 24 h after impregnation, the test strip may be peeled off of the aluminum foil for the corresponding test. It is important that sufficient strips be prepared per test to enable predicted tests such as biological activity testing and follow-up analysis. Later test models are stored in a refrigerator.

5.2 Evaluation of the amount of KNO3.

The KNO3 quantity assessment is as follows:

Quantity of KNO3 / sheet DIN A 4

Gross weight of paper - net weight of paper = KNO3 quantity

- weight of KNO3

Quantity of KNO3 per sheet χ 1 m2 / DIN area sheet A 4 = KNO3An2

6. Effectiveness of various active substances

6.1 Test Examples

1-4. Paper impregnated with different active substances (paper size 1.8 cm χ 15.7 cm = 28.3 cm2)

1. Transfluthrin: amount employed: 0.60 mg

2. Metofluthrin: amount employed: 0.20 mg

3. Etoc: amount employed: 0.60 mg

4. Strong Pinamine: Amount used: 4.00 mg

5. Control: paper without active substance

6.2 Insects tested:

1. Aedes aegypti, species BioGenius 04, sensitive, age 3 days, both sexes

2. Culex quinquefasciatus, species BioGenius 05, sensitive, age 3 days, both sexes

6.3 Equipment Tail boughs: Length 8.5 cm, Φ 8 cm Plastic containers: 0 9.5 cm, Height 4.5 cm Wads: Cellulose

Sugary Water: 10% Crystal Sugar (Pfeiffer & Langen) in Tap Water

Test chamber: 20 m3 chamber with equipment, glass container with spiral holding device, fan

6.4 Ambient conditions Temperature: 23 ° C - 25 ° C Relative humidity: 35 - 57% Lighting: Electric lighting

6.5 Number of paper samples 6.6 Test execution

The tests are carried out in a 20 m3 enclosure (I = 2.84 m, w = 2.33 m, h = 3.03 m), where the inner walls and roof covering are made of steel (DIN 4571), the enclosure being provided with five windows. The floor is of unglazed tiles. Three wire baskets (I = 8.4 cm, diameter = 8.0 cm, mesh = 1.0 mm), each basket containing 20 test insects (age 3 to 4 days), are hung in the test room. starting from the floor at a height of 1.80 m, 0.45 m apart, at positions A, B and C (see Figure 1).

A ring is placed in a glass container that is placed in the middle of the enclosure on a 0.5 m support. The ring is fixed to a commercially available ring holder and lit at one end. Under the container a fan (0.2 m in diameter) is placed with the blades upwards, which rotates in position 1 throughout the test.

The time when 10%, 50% and 95% of the insects are killed is determined (KT 10, KT 50 and KT 95). The test insects remained 60 minutes in the room. The final amount of dead insects was then determined. All insects are removed from the containers and placed in clear, insecticide-free plastic containers. The containers are closed with perforated lids and fitted with cellulose wads impregnated with 10% sugar solution. After the insects remained for 24 hours in this insecticide-free atmosphere, mortality was determined.

The tests were repeated three to five times.

6.7 Results Table 1

Aerosol efficiency in paper impregnated in 20 m3 test chambers against sensitive Aedes aegypti

<table> table see original document page 38 </column> </row> <table> table 2

<table> table see original document page 39 </column> </row> <table> 6.8 Results

All impregnated pieces of paper (0.6 mg transfluthrin, 0.2 mg metofluthrin, 0.6 mg Etoc or 4.0 mg Pinamine forte) had a rapid knock-down effect on Aedes aegypti, in the following order:

95% knock-down time:

Strong Pinamine: 5 minutes, 22 seconds

Transfluthrin: 5 minutes, 33 seconds

Metofluthrin: 6 minutes, 02 seconds

Etoc: 8 minutes, 34 seconds

All papers cause a high mortality rate (strong pinamine, transfluthrin and metofluthrin 100% mortality; Etoc 97% mortality).

For Culex quinquefasciatus, all impregnated papers (0.6 mg transflutrin, 0.2 mg metoflutrin, 0.6 mg Etoc or 4.0 mg strong pinamine) showed rapid knock-down effect in the following order:

95% knock-down time:

Strong Pinamine: 09 minutes, 27 seconds

Transfluthrin: 11 minutes, 01 seconds

Metofluthrin: 11 minutes, 24 seconds

Etoc: 19 minutes, 09 seconds

In relation to Culex mosquitoes, the products showed significant differences in the mortality rate. Transfluthrin alone provides 100% mortality, followed by metofluthrin (84%), Etoc (35%) and strong pinamine (22%).

7. Culture conditions for the types of insects used.

7.1 Culex quinquefasciatus

Mosquitoes are kept in cages (48 χ 48 χ 39 cm) lined with gauze panels on the sides and lid. The illumination (day / night rhythm) is dimmed (12 hours light / 12 hours dark), with a temperature of 26 ° C + 1 ° C and a relative humidity of 60% ± 10%. For the absorption of liquid by mosquitoes, a cotton pad soaked in 10% glucose solution is placed in the box. Twice a week feeding with artificial blood is given. Ox blood mixed with anticoagulant agent is heated to 40 ° C with the aid of a magnetic mixer. Approximately 50 ml of this blood is placed in a piece of pork gut and then placed in the culture box. This way mosquitoes can absorb blood. The eggs deposited are transferred to a plastic container (25 x 37 cm) containing 5 liters of demineralized water that is placed on a heating mat in the terrarium. Mosquito larvae are fed once a day with commercially available ornamental fish feed (eg Vita®). After approximately 6 days the pupae stage is reached. These are transferred with a small amount of water to buckets of synthetic material with a capacity of 10 liters to create. Born mosquitoes can then be used for testing or for further breeding.

7.2 Aedes aegypti

Mosquitoes are kept in (48 χ 48 χ 39 cm) cages covered with gauze panels on the sides and lid. The illumination (day / night rhythm) is dimmed (12 hours light / 12 hours dark), with a temperature of 26 ° C ± 1 ° C and a relative humidity of 60% ± 10%. For the absorption of liquid by mosquitoes, a cotton pad soaked in 10% glucose solution is placed in the box. Once a week feeding with artificial blood is given. Ox blood mixed with anticoagulant agent is heated to 40 ° C with the aid of a magnetic mixer. Approximately 50 ml of this blood is placed in a piece of pork gut and then placed in the culture box. This way mosquitoes can absorb blood. The eggs deposited are transferred to a plastic container (25 x 37 cm) containing 5 liters of demeralized water that is placed on a heating mat in the terrarium. Mosquito larvae are fed once a day with commercially available ornamental fish feed (eg Vita®). After approximately 6 days the pupae stage is reached. These are transferred with a small amount of water to buckets of synthetic material with a capacity of 10 liters to create. Born mosquitoes can then be used for testing or for further breeding.

8. Comparison of aerosol efficiency with respect to the paper support of the present invention.

8.1 Materials

Insects tested: 1. Aedes aegypti, species BioGenius 04, sensitive, 3 days old, both sexes

2. Culex quinquefasciatus, species BioGenius 05, sensitive, 3 days old, both sexes

8.1. Equipment

<table> table see original document page 42 </column> </row> <table>

8.2 Environmental Conditions

<table> table see original document page 42 </column> </row> <table>

8.3 Means of combat:

transfIuthrin 0.5 / 0.25 / 0.1 / 0.05 / 0.025 / 0.01 active substance / m3

8.4 Execution

In steel-bottom glass test chambers measuring (internal measurement) 0.84 m χ 0.87 m χ 1.37 m (= 1 m3 capacity), three baskets are placed in the upper third of the chamber. of wire (length 8.5 cm, diameter 8 cm), each basket containing 20 test insects (age: 3 to 4 days).

A defined amount of active substance is dissolved in 2 cm3 of acetone and sprayed onto the chamber floor.

The time when 10%, 50% and 95% of the insects are killed is determined (KT 10, KT 50 and KT 95). The test insects remained 60 minutes in the chambers. The final amount of dead insects was then determined. All insects are removed from the containers and placed in clear plastic containers without insecticide. The containers are closed with perforated lids and fitted with 10% sugar solution impregnated cellulose wads. After the insects remained for 24 hours in this insecticide-free atmosphere, mortality was determined.

8.5 Results

Aerosol efficiency in 1 m3 chambers in relation to yellow fever transmitting mosquitoes Aedes egypti, species BioGenius 04, sensitive

<table> table see original document page 43 </column> </row> <table>

Aerosol efficiency in 1m3 chambers against yellow fever mosquito Culex quinquefasciatus, species BioGenius 05, sensitive

<table> table see original document page 43 </column> </row> <table>

From a comparison it is found that, in general, 0.1 mg / m3 transfluthrin is required for an aerosol application, while with the devices of the present invention an efficiency of 0.03 mg / m3 is already achieved. km3.

Claims (8)

1. An insect-fighting device comprising a burnable carrier characterized in that it is provided with at least one active insecticidal substance. Device according to claim 1, comprising a burnable paper carrier provided with at least one insecticidal active substance. Device according to claim 2, characterized in that the paper support has a paper weight of 25 to -300 g / m2. Device according to Claim 2 or 3, characterized in that the thickness of the paper support is 0.1 to -0.5 mm. Device according to one of Claims 2 to 4, characterized in that the insecticidal active substance content is 0.01 to 100.0 mg / 24 cm2 of paper surface. Device according to one of Claims 2 to 5, characterized in that the paper support comprises potassium nitrate in an amount of 5 to 50 g / m2. Method for preparing a device according to one of Claims 2 to 6, characterized in that the insecticide-containing paper support is prepared by impregnation, particularly by spraying the support with an insecticide solution and subsequent drying. by immersion of the support in an insecticidal solution and subsequent drying, by impregnation by pipette, ink-jet process or screen printing. Use of the device according to one of claims 1 to 6 for insect control.