WO2018206866A1 - Dry insecticide powder and corresponding method - Google Patents

Dry insecticide powder and corresponding method Download PDF

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Publication number
WO2018206866A1
WO2018206866A1 PCT/FR2018/000110 FR2018000110W WO2018206866A1 WO 2018206866 A1 WO2018206866 A1 WO 2018206866A1 FR 2018000110 W FR2018000110 W FR 2018000110W WO 2018206866 A1 WO2018206866 A1 WO 2018206866A1
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Prior art keywords
powder
cas
silica
hydrophilic
hydrophobic
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PCT/FR2018/000110
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French (fr)
Inventor
René Chelle
Vincent HARRACA
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Ab7 Innovation S.A.S.U
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Publication of WO2018206866A1 publication Critical patent/WO2018206866A1/en

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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N55/00—Biocides, pest repellants or attractants, or plant growth regulators, containing organic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen and sulfur
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change

Definitions

  • the present invention is in the field of an organic or inorganic dry powder for the control of harmful creeping arthropods. More particularly, the present invention relates to a dry powder comprising a synergistic mixture of eilicé constituent hydrophilic character and hydrophobic component of hydrophobic nature.
  • pesticides whose mode of action could be described as physical.
  • the latter are in the form of a dry powder to be applied to a surface area to be treated on which are likely harmful creeping arthropods, said powder adheres to the cuticle of said arthropods to thereby cause their death by dehydration and / or by "Abrasion” and / or asphyxiation.
  • insecticidal dry powders When the currently available insecticidal dry powders are used, their effectiveness may be affected by the hydrophilic or hydrophobic character of the surface area to be treated.
  • harmful creeping arthropods such as cockroaches, teetbrionids, weevils, bedbugs, cockroaches, fly larvae or flea beetles, are found in potentially wet locations, so they are hydrophilic.
  • parasitic arthropods such as adult fleas, ticks and red lice are found mainly on the skin of animals, which is therefore of lipophilic nature.
  • patent EP0337212 describes an insecticidal silica powder which causes the death of insects by dehydration; while the patents FR2329201, EP0337212 and AU2015234233 disclose an absorbent hydrophilic silica powder such as amorphous synthetic silica, silica gel in synergistic combination with diatomaceous earth (patent EP0835056).
  • some insecticidal hydrophilic powders include alkali bicarbonate (potassium or magnesium), alum combined with amorphous silica (patents FR2883129, TW201524355).
  • the patent EP0835056 describes an insecticidal layer consisting of a synergistic mixture of diatomaceous earth (DE) and silica (silicon dioxide) in a proportion by weight of 95 to 65% of DE for 5 to 35% silica, the two components of the mixture being of hydrophilic nature.
  • DE diatomaceous earth
  • silica silica
  • ⁇ is described by US3159536 a composition containing at least 65% of hydrophobic silica particles mixed with not less than 25% of the hydrophilic silica particles.
  • Patent DE29621631 discloses an insecticidal powder containing 90% of hydrophobicized diatomaceous earth by adding 10% of methylated silicic acid.
  • GB2027341 discloses a cosmetic foundation composition comprising, by weight, 0.5 to 5% hydrophobic fumed silica and 0.5 to 3% hydrophilic fumed silica.
  • compositions in the form of a dry powder contain a synergistic mixture of hydrophilic and hydrophilic silica compounds to fight against nuisance camping arthropods that can infest both wet surface than rather greasy surface areas.
  • synergistic and complementary action of the two types of p articular silicates within a single composition makes it possible to more effectively kill the creeping arthropods coming into contact with the particles, both for areas of moist application areas and on the skin or other biological membrane.
  • “Inert” powder is a powder that does not provide any significant pesticidal action.
  • the object of the invention is also to provide a composition comprising a mixture of hydrophobic and hydrophilic silicone compounds as insecticidal agents as well as adjuvants.
  • the present invention accordingly, as a first object, a method for combating harmful creeping arthropods, said arthropods which constitute targets are capable of infesting an area to be treated, the application surface of which said powder may be substantially dry, moist or greasy, said powder containing a synergistic mixture of silica particulate constituents comprising at least one hydrophilic mineral least one mineral fraction and / or organic hydrophobic character, characterized in that there is applied an amount ducfit mixture by application unit area between 0.1 and 20 g / m has crossferentieflernent between 0.5 and 10 g / m *, and in that said powder comprising:
  • raasociation of at least two fractions of the particulate siliceous constituents makes it possible to synergize the pesticidal effect of each of the siliceous constituents, their effect being complementary.
  • this combination makes it possible to obtain a complementary pesticidal action. yis-to-life of creeping arthropods due to the difference in affinity of said constituents with the cuticle and the haemolymph, which limits the risk of developing resistance to target arthropods.
  • this combination makes it possible to retain the pesticidal action irrespective of the nature of the surface of the application medium.
  • the mass ratio between the hydrophilic and hydrophobic fractions is respectively between 1:50 and 5: 1, preferably between 1:10 and 2: 1; this mass ratio being adapted both by the nature of the application surface to be treated and by the sensitivity of the species of arthropod dble.
  • the inorganic siliceous particulate component & hydrophilic character is selected from amorphous silica gel [CAS 112926-00-8], diatomaceous earth [CAS 61790-53-2], silicon [CAS 14808-60-7; 15468-32-3; 14464-46-1; 13778-37-5; 13778-38-6; 17679-64-0; 7631-86-9; 1343-98-2; 63231-67-4; 60676-86-0; 69012-64-2], clay silicates, perlites, silica aerogels and mixtures thereof.
  • the hydrophilic mineral silicic component makes it possible, among other things, to pump liquids such as arthropod hemorymph resulting in a faster death by dehydration.
  • the process for rendering a hydrophilic mineral silica partially or completely hydrophobic consists in preventing either an organosulfide-type hydrophobic agent, a resin (liquid or solid) or an anhydrous solution of hydrophobic agent of the haloalkane type, or halosilane by for example, organosilane vapors in the presence of gai inert
  • An additional heat can be provided to improve the hydrophobicity of the particles.
  • the above-listed hydrophilic hydrophilic silica constituents are likely to be treated to render them hydropophobic.
  • the hydrophobic siliceous ceramic component of mineral origin in accordance with the present invention is therefore capable of being obtained by one of the above-defined hydrophobization reactions.
  • the hydrophilic silicate component 1 is a mineral silica selected from the group consisting of (1,1,1-trimethyl-N- (trimethylsilyl) silanaminc [CAS 68909-20-6], post-treated smoke (CAS 68611-44-9: 112945-52-5; 92797-60-9; 844491-94-7; 68611-44-9), post-treated amorphous silica gel, post-treated diatomaceous earth, silicon dioxide, post-treated, insoluble metal silicates, precipitated silicas such as dimethyl siloxane [CAS 67762-90-7], post-treated silica aerogels, organic silica being selected from silica az [CAS 68553-81-1] or bamboo fiber [CAS 91771-32-3] and mixtures thereof.
  • a mineral silica selected from the group consisting of (1,1,1-trimethyl-N- (trimethylsilyl) silanaminc [CAS 68909-20-6], post-treated smoke (CAS 68611-44
  • the siliceous pieziary component hydrophobic nature allows among other destructure cuticle arthropod resulting in death by dehydration faster.
  • the particle constituents hydrophilic and hydrophobic silicas have an average particle size distribution between 20 and 100 microns, for a specific surface area (EIB) between 85 and 300 m / g.
  • EIB specific surface area
  • the particle size of the powder, and therefore of each of the siliceous particulate constituents makes it possible to obtain a remanence of its pesticidal effect with low risks of habituation due to the emi-mechanical mode of action, unlike the usual chemical pesticides.
  • the specific particle size of the particles makes it possible to obtain good penetration and accumulation of said particles into the interstices of the areas of the application surface to be treated, where the target crawling arthropods can also be hidden.
  • the mixture of two fractions of hydrophilic and hydrophobic particulate silica constituents constitutes between 10 and 100% by weight of all the dry powder, the remainder being constituted by an inert powder. , which has no significant pesticidal action, serving as a diluent for the spreading distribution of all the dry powder on the application surface of the medium to be treated.
  • the adjuvants may be chosen from an inert powder, a liquid solvent, a repellent, or a mixture thereof.
  • the liquid solvent may be aqueous and / or non-aqueous, miscible with water. selected from among ethanol, propanol, isopropanol, 2,5,7,10- tcu ⁇ oxaundécane, propylene carbonate, acetone, withmylé ⁇ ykétone, the meth j lpropylcétone, the chemicalthylbutylcétofle, or mixtures thereof.
  • the repellent agent may be monoterperic derivatives of essential oils, an essential oil, or mixtures thereof.
  • Derivatives of essential oils may be alcohols such as geraniol, dtronellol, eugenol, aldehydes such as atronelhL
  • the essential oil may be thyme essential oil, peppermint essential oil, or mixtures thereof .
  • the repellent agent When the repellent agent is present, it can represent 0.5 and 5% by weight of the powder, taken as a whole.
  • the liquid solvent When the liquid solvent is present, it can be from 2 to 10% by weight of the powder as a whole.
  • the powder is dispersed in the liquid solvent which compatibilises it with a gas which serves as a propellant for distributing the aerosol assembly.
  • the inert powder is selected from the group consisting of talc, alumina, feldspar, calcium carbonate, dolomite, calcium silicate, clay, or mixtures thereof.
  • the hydrophilic application surface is a non-biological inert coating surface, the floor; and the hydrophobic surface of application may be a skin-like biological surface or a non-biological inert surface, the latter being the preferred surface.
  • Creeping arthropods include cockroaches, bed bugs, weevils, tenebriox, fly and lepidopteran larvae, mites, or more specifically the different stages of development of animal parasites such as fleas. , ticks, red lice for which the dry powder is applied to the body of an animal or its environment
  • the invention has a second object, a pesticide-containing dry powder comprising a synergistic mixture of at least one hydrophilic hydrophilic mineral peat constituent and at least one mineral and / or organic hydrophobic character, catactérisée in that the mass ratio between said hydrophilic and hydrophobic fractions being respectively between 1:10 and 2: 1 and, in that it further comprises an adjuvant.
  • the pesticide-containing dry powder comprises:
  • the hydrophilic mineral silicic paracukite compound is selected from amorphous silica gel [CAS 112926-00-8], diatomaceous earth [CAS 61790-53-2], silicon dioxide [ CAS 14808-60-7; 15468-32-3; 14464-46-1; 13778-37-5; 13778-38-6; 17679-64-0; 7631-86-9; 1343-98-2; 63231-67-4; 60676-86-0; 69012-64-2J, clay silicates, powders, silica aerogels and mixtures thereof.
  • the hydrophobic silica component is a tymfaU silica selected from the group consisting of (1 > 1, 1-trimethyl-N- (tri-methyl) silanyl) silanamine [CAS 68909- 20-61, silica post-trash smoke (CAS 68611-44-9; 112945-52-5; 92797-60-9; 844491-94-7; 68611-44-9), post-treated amorphous silica gel, post-treated dtctomée, post-treated silicon dioxide, insoluble metal silicates, precipitated silicas such as dimethyl siloxane [CAS 67762-90-7], post-treated silica aerogels, the organic silica being selected from silica of m [CAS 68553-81-1] or bamboo fibers [CAS 91771-32-3] and mixtures thereof.
  • the hydrophobic and hydrophilic paricellular silica components have a mean particle size distribution of between 20 and 100 ⁇ m, for a specific surface area (BEI) of between 120 and 300 mVg.
  • the mixture of the two waxes of silicic and hydrophilic parucular constituents constitutes between 10 and 100% by weight of all the dry powder, the 100% complement consisting of an inert powder, which has no significant pesticidal action.
  • the adjuvant may be selected from an inert powder, a liquid solvent, a repellent, or the mixture thereof.
  • the liquid solvent may be aqueous and / or non-aqueous, miscible with water selected from among ethanol, propenol, isopropanol, 2,5,7,10-tetoxoxundecane, propylene carbonate, acetone, methyl ethyl ketone and methylpropylketone. , methylbutylketone, or mixtures thereof.
  • the repellent agent may be monoterpene derivatives of essential oils, an essential oil, or mixtures thereof.
  • Derivatives of essential oils may be alcohols such as geraniol, dtroneHol, eugenol aldehydes such as riteoneUaL
  • the essential oil may be thyme essential oil, peppermint essential oil, or mixtures thereof.
  • the pesticide-containing dry powder comprises:
  • a dry powder with a pesticidal action comprises: 1 to 20% by weight of hydrophobic part-silica component,
  • the inert powder is selected from the group consisting of talc, alumina, feldspar, calcium carbonate, dolomite, calcium silicate and mixtures thereof.
  • the inert powder is selected from the group consisting of talc, wooline, feldspar, calcium carbonate, dolomite, calcium silicate, clay, or mixtures thereof.
  • the mass amounts of 0.6 g / m 2, 3.1 g / m 2 and 6.3 g / m was applied on a carpet hair covering part of the ground (about 45%) of a container ( ⁇ 360 cm 3 ) in which are placed 20 to 30 chips It is observed that the pesticide action towards the chips increases according to the amount of the powder 12.5% of fleas survive when the amount of powder is 6.3 g / m 2 , the same survival rate is reached at the end of 8 hours a quantity of powder of 3.1 g / m 2.
  • the chip survival rate is 55% after 8 hours. It it takes 4 hours to reach a mortality significantly different from control with amounts of powder ranging from
  • the mass quantities of 7 g / m 2 and 15 g / m 2 are applied to a carpet with flaxseed covering the entire surface of a soil of a container (565 ml) in which are placed about twenty tenebrians. It is observed that the pesticidal action towards the tenebtions increases according to the quantity of the powder.
  • FIG. 3 represents a mean survival curve (n ⁇ 3) of ticks (Ixodu nantis) after treatment with a dry powder containing a mixture of 10% silanamine [CAS 68909-20-6] and 30% of a diatomaceous earth. [CAS 61790-53-2], 100% supplemented with talcum
  • the mass quantities * of 1.5 g / m 2 and 15 g / m 1 are applied in the same manner as in FIG. 2 with 5 adult ticks . It is observed that the pesticidal action against ticks increases as a function of the quantity of the powder. Indeed, after 4 hours, only 7% 16% of ticks survive when the amount of the powder is 15 g / m *, and they are all killed after 5 hours.
  • the tick survival rate is 73% ⁇ 12% after 8 hours. After 24 hours (not shown), while without treatment, 80% ⁇ 10% of the ticks survived, all the ticks placed in the treatments died regardless of the quantity of powder applied, the mortality due to the application of the two quantities of powder are therefore significant (Chi * test, ⁇ ⁇ 1%).
  • FIG. 4 represents the percentage of survival of the chips (CltMapbaBdij canis) when the dry powder is deposited on various types of surfaces.
  • the powder used is identical to that of FIGS. 1 to 3; the amount of powder used is 10 g / m a.
  • dry filter paper, filter paper moistened with 2.5 mL of water, and fatty filter paper (impregnated with 2.5 mL of vegetable oil) were selected. It is observed that after 8 hours, the survival rates of the chips are 6.3%, 54.8% and 56.3% respectively on dry filter paper, wet filter paper and fatty filter paper. After 24 hours, all fleas are killed on dry and wet filters, while 5% of survivors know the fat filter and 83.5% on the control without treatment.
  • FIG. 5 represents the average survival percentage (n-3) of the cockroaches (fiJattitia gmanicà) when the dry powder is deposited on different types of surfaces as described in FIG. 4.
  • the powder used is identical to that of FIGS. ; the amount of powder used being 10 g / m 2 .
  • all cockroaches were killed on dry filter paper, then it remains 81.4% ⁇ 4 "of 6% following the fatty filter paper and 79.4% ⁇ 2.5% in the wet filter paper.
  • Table 1 shows that the insecticidal effectiveness of a dry powder mixture is achieved with the target arthropod species as well as the amount applied according to the application area and the mass ratios of hydrophilic and hydrophobic powders in order to get the most radical effect.
  • FIG. 6 represents the percentage survival of the tenebrians (Apbiiobius dtaptriftus) using a dry powder which does not contain a mixture of hydrophilic / hydtophobic paxticular silica components.
  • the diatomaceous earth [CAS 61790-53-2] and the silicaduct -Ucocyde [CAS 7631-86-9] were chosen, each at a quantity of 7 g / m 2. It is observed that after 24 hours, it still tests 90% and 100% of survivors, respectively for the silicon dioxide and the diatomaceous earth. After 48 hours, 100% of the beetles are still alive for control, compared with 98% and 15% respective survival for diatom text and Sflicin dioxid. After 72 hours, all the beetles are killed by ajlichim dioxide, while 95% survive with diatomaceous earth. Survival remains 100% for control pollen.
  • FIG. 6 clearly demonstrates that the individual silica constituents employed individually do not make it possible to obtain a satisfactory pesticidal aedon, unlike the dry powder containing a mixture of hydrophilic and hydropophobic silica-based articular constituents in accordance with the invention. Moreover, according to the creeping arthropods and the nature of the surface on which said arthropods are located, it is possible to adapt the quantity of the mixture in the powder as well as the nature of each of the constituents.

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Abstract

The present invention relates to a dry insecticide powder containing a synergistic mixture of hydrophilic and hydrophobic silica constituents at a ratio of between 1:50 and 7:1. The present invention also relates to a method for the pest control of crawling arthropods using the aforementioned dry powder.

Description

POUDRE SÈCHE INSECTICIDE ET PROCÉDÉ CORRESPONDANT  INSECTICIDE DRY POWDER AND CORRESPONDING METHOD
La présente invention est située dans le domaine d'une poudre sèche d'otigïne organique ou minérale, destinée à h lutte contre les arthropodes rampants nuisibles. Plus particuhèrement, la présente invention concerne une poudre sèche comportant un mélange synergique de constituant eilicé à caractère hydrophile et de constituant silicé à caractère hydrophobe. The present invention is in the field of an organic or inorganic dry powder for the control of harmful creeping arthropods. More particularly, the present invention relates to a dry powder comprising a synergistic mixture of eilicé constituent hydrophilic character and hydrophobic component of hydrophobic nature.
La lutte contre les arthropodes potentidlement nuisibles a provoqué un essor de la conception de produits à action pesticide pour différents usages (domestique, entretien» agricole, vétérinaire, etc.). Ces produits, dont la formulation comporte souvent des insecticides d'origine naturelle ou de synthèse, ont une action neuro toxique ou hormonale avérée chez lesdits nuisibles. Malgré l'existence de normes sanitaires au bénéfice de l'Homme, l'utilisation de tels produits peut constituer une menace potentielle pour des organismes aquatiques et des insectes poUinisateurs, et par voie de conséquence, nuire a l'environnement Par ailleurs, on observe que les arthropodes nuisibles ont pu, au cours du temps, développer une résistance aux insecticides de synthèse et/ou naturels a tel point que certains de ces produits présentent dorénavant une efficacité limitée.The fight against potentidlement arthropod pests caused a boom in the design of pesticide acting products for different uses (domestic, maintenance "agricultural, veterinary, etc.). These products, whose formulation often contains insecticides of natural origin or synthesis, have a neuro toxic or hormonal action proven in said pests. Despite the existence of health standards for the benefit of man, the use of such products may pose a potential threat to aquatic organisms and poacher insects, and consequently to the environment. that arthropod pests have, over time, developed resistance to synthetic and / or natural insecticides to the point that some of these products now have limited effectiveness.
Pour une alternative à ces produits aux insecticides de synthèse dont le mode d'action peut être qualifié de biochimique, il existe des produits pesticides dont le mode d'action pourrait être qualifié de physique. Généralement; ces derniers se présentent sous forme de poudre sèche à appliquer sut une zone de surface à traiter sur laquelle sont susceptibles de se trouver les arthropodes rampants nuisibles, ladite poudre adhère à la cuticule des dits arthropodes pour entraîner ainsi leur mort par déshydratation et/ou par « abrasion » et/ ou par asphyxie. For an alternative to these products with synthetic insecticides whose mode of action can be called biochemical, there are pesticides whose mode of action could be described as physical. Usually; the latter are in the form of a dry powder to be applied to a surface area to be treated on which are likely harmful creeping arthropods, said powder adheres to the cuticle of said arthropods to thereby cause their death by dehydration and / or by "Abrasion" and / or asphyxiation.
Lorsque l'on utilise les poudres sèches insecticides actuellement disponibles, leur efficacité peut être affectée par le caractère hydrophile ou hydrophobe de la zone de surface a traiter. Far exemple, d'une part, les arthropodes rampante nuisibles, tels que les blattes, les téuébrione, les charançons, les punaises de lit, les cafards, les larves de mouches ou de puces, fréquentent des endroits potentiellement humides, donc i caractère hydrophile ; d'autre part, les arthropodes parasites tels que les puces adultes, les tiques et les poux rouges se trouvent essentiellement sur la peau des animaux, donc à caractère lipophUe.  When the currently available insecticidal dry powders are used, their effectiveness may be affected by the hydrophilic or hydrophobic character of the surface area to be treated. For example, harmful creeping arthropods, such as cockroaches, teetbrionids, weevils, bedbugs, cockroaches, fly larvae or flea beetles, are found in potentially wet locations, so they are hydrophilic. ; on the other hand, parasitic arthropods such as adult fleas, ticks and red lice are found mainly on the skin of animals, which is therefore of lipophilic nature.
Il est déjà connu pat l'art antérieur des poudres sèches insecticides à caractère hydrophile. Par exemple, le brevet EP0337212 décrit une poudre de silice insecticide qui entraine la mort des insectes par déshydratation ; tandis que les brevets FR2329201, EP0337212, AU2015234233 divulguent une poudre de silice hydrophile absorbante telles que la silice synthétique amorphe, le gel de silice en combinaison synergique avec de la terre diatomée (brevet EP0835056). Dans des variantes, certaines poudres hydrophiles insecticides comportent du bicarbonate alcalin (potassium ou magnésium), d'alun combiné à de la silice amorphe (brevets FR2883129, TW201524355). Dans un autre registre, le brevet EP0835056 décrit une pondre insecticide constituée d'un mélange synergique de terre de diatomée (DE) et de silice (dioxyde de silicon) dans une proportion en poids de 95 a 65% de DE pour 5 à 35% de silice, les deux composants du mélange étant de caractère hydrophile. It is already known from the prior art insecticidal dry powders of hydrophilic nature. For example, patent EP0337212 describes an insecticidal silica powder which causes the death of insects by dehydration; while the patents FR2329201, EP0337212 and AU2015234233 disclose an absorbent hydrophilic silica powder such as amorphous synthetic silica, silica gel in synergistic combination with diatomaceous earth (patent EP0835056). In variants, some insecticidal hydrophilic powders include alkali bicarbonate (potassium or magnesium), alum combined with amorphous silica (patents FR2883129, TW201524355). In another register, the patent EP0835056 describes an insecticidal layer consisting of a synergistic mixture of diatomaceous earth (DE) and silica (silicon dioxide) in a proportion by weight of 95 to 65% of DE for 5 to 35% silica, the two components of the mixture being of hydrophilic nature.
Π est déjà également connu de l'art antérieur des poudres sèches insecticides à caractère hydrophobe. Pour s'afmuîchir de la problématique liée à l'humidité de la sur race d'application à traiter, le brevet US3159536 décrit une composition insecticide comportant un mélange de 65 à 75% de silice hydrophobe. de 25 à 30% de silice hydrophile et de 5 à 10% de sels inorganiques, non déliquescents. Dans le même registre, le brevet WO94/09626 décrit une composition insecticide formée par un mélange comportant des particules hydrophohes de dioxyde de silice et de la poudre hydrophile en argile ; ledit mélange de poudre étant dispersé dans une solution aqueuse pour une application pat pulvérisation sur les plantes.  It is already known from the prior art hydrophobic dry insecticidal powders. In order to overcome the problem related to the moisture of the super-race of application to be treated, US Pat. No. 3,155,536 describes an insecticidal composition comprising a mixture of 65 to 75% of hydrophobic silica. from 25 to 30% of hydrophilic silica and from 5 to 10% of inorganic, non-deliquescent salts. In the same register, the patent WO94 / 09626 describes an insecticidal composition formed by a mixture comprising hydrophobic particles of silica dioxide and hydrophilic clay powder; said powder mixture being dispersed in an aqueous solution for application to the plants.
Π est décrit par le brevet US3159536 une composition renfermant au moins 65% de particules de silice hydrophobe en mélange avec pas moins de 25% des particules de silices hydrophiles. Le brevet DE29621631 divulgue une poudre insecticide renfermant 90% de terre de diatomées rendue hydrophobe par ajout de 10% d'acide silidque méthyié. Le brevet GB2027341 décrit une composition cosmétique de fond de teint comprenant, en poids, 0,5 à 5% de silice fumée hydrophobe et de 0,5 à 3% de silice fumée hydrophile. Π is described by US3159536 a composition containing at least 65% of hydrophobic silica particles mixed with not less than 25% of the hydrophilic silica particles. Patent DE29621631 discloses an insecticidal powder containing 90% of hydrophobicized diatomaceous earth by adding 10% of methylated silicic acid. GB2027341 discloses a cosmetic foundation composition comprising, by weight, 0.5 to 5% hydrophobic fumed silica and 0.5 to 3% hydrophilic fumed silica.
Malgré les différentes solutions proposées par l'art antérieur, il existe un besoin de fournir une composition en forme de poudre sèche, renferment un mélange synergique de composés silices hydrophobe et hydrophile pour lutter contre les arthropodes campants nuisibles susceptibles d'infester tant des zones de surface humide que des zones de surface plutôt graisseuse. En effet, l'action synergique et complémentaire des deux types de composes p articulaires silices au sein d'une seule composition permet de tuer plus efficacement les arthropodes rampants rentrant en contact avec les particules, tant sut des zones de surfaces d'application humides que sur la peau ou autre membrane biologique.  Despite the different solutions proposed by the prior art, there is a need to provide a composition in the form of a dry powder, contain a synergistic mixture of hydrophilic and hydrophilic silica compounds to fight against nuisance camping arthropods that can infest both wet surface than rather greasy surface areas. Indeed, the synergistic and complementary action of the two types of p articular silicates within a single composition makes it possible to more effectively kill the creeping arthropods coming into contact with the particles, both for areas of moist application areas and on the skin or other biological membrane.
On entend pat poudre « inerte » une poudre qui ne procure aucune action pesticide significative. L'invention a aussi pour but de fournir une composition renfermant un mélange de composés siUcés hydrophobe et hydrophile en tant qu'agents insecticides ainsi que des adjuvants.  "Inert" powder is a powder that does not provide any significant pesticidal action. The object of the invention is also to provide a composition comprising a mixture of hydrophobic and hydrophilic silicone compounds as insecticidal agents as well as adjuvants.
Ainsi, la présente invention a, en conséquence pour premier objet, un procédé pour lutter contre les arthropodes rampants nuisibles, les dits arthropodes qui constituent des cibles sont susceptibles d'infester une zone a traiter dont la surface d'application sur laquelle est répartie ladite poudre pouvant être sensiblement sèche, humide ou graisseuse, ladite poudre renfermant un mélange synergique de constituants particulaires silices comportant au moins une traction minérale à caractère hydrophile, au moins une fraction minérale et/ou organique à caractère hydrophobe, caractérisé en ce que l'on applique une quantité ducfit mélange par unité de surface d'application comprise entre 0,1 et 20 g/ma, préferentieflernent entre 0,5 et 10 g/m*, et en ce que ladite poudre comportant : Thus, the present invention accordingly, as a first object, a method for combating harmful creeping arthropods, said arthropods which constitute targets are capable of infesting an area to be treated, the application surface of which said powder may be substantially dry, moist or greasy, said powder containing a synergistic mixture of silica particulate constituents comprising at least one hydrophilic mineral least one mineral fraction and / or organic hydrophobic character, characterized in that there is applied an amount ducfit mixture by application unit area between 0.1 and 20 g / m has préferentieflernent between 0.5 and 10 g / m *, and in that said powder comprising:
1 à 20% en poids de constituant particulafce'silicé à caractère hydrophobe,  1 to 20% by weight of hydrophobic particulate component,
- 9 à 40% en poids de constituant silicé minérali caractère hydrophile,  9 to 40% by weight of mineral silicic component, hydrophilic character,
- 40 à 90% en poids d'adjuvants.  40 to 90% by weight of adjuvants.
De manière inattendue, raasociation d'au moins deux fractions des constituants silicés particulaires (hydrophobe et hydrophile) permet de synergiser l'effet pesticide de chacun des constituants silicés, leur effet se complémentant En effet, cette association permet d'obtenir une action pesticide complémentaire yis-À-vie des arthropodes rampants grâce à la différence d'affinité desdits constituants avec la cuticule et Fhémolymphe, ce qui limite les risques d'apparition de résistance che* les arthropodes cibles. De plus, cette association permet de conserver l'action pesticide quelle que soit la nature de la surface du milieu d'application.  Unexpectedly, raasociation of at least two fractions of the particulate siliceous constituents (hydrophobic and hydrophilic) makes it possible to synergize the pesticidal effect of each of the siliceous constituents, their effect being complementary. In fact, this combination makes it possible to obtain a complementary pesticidal action. yis-to-life of creeping arthropods due to the difference in affinity of said constituents with the cuticle and the haemolymph, which limits the risk of developing resistance to target arthropods. In addition, this combination makes it possible to retain the pesticidal action irrespective of the nature of the surface of the application medium.
Selon un mode mise en oeuvre, le ratio massique entre les fractions hydrophile et hydrophobe est compris respectivement entre 1:50 et 5:1, préfèrentiellement entre 1:10 et 2:1 ; ce ratio massique étant adapté tant par la nature de la surface d'application à traiter que par la sensibilité de l'espèce d'arthropode dble.  According to one embodiment, the mass ratio between the hydrophilic and hydrophobic fractions is respectively between 1:50 and 5: 1, preferably between 1:10 and 2: 1; this mass ratio being adapted both by the nature of the application surface to be treated and by the sensitivity of the species of arthropod dble.
Selon un mode de mise en oeuvre, le constituant particulaire silicé rninéral & caractère hydrophile est choisi parmi du gel de silice amorphe [CAS 112926-00-8], de la terre de diatomée [CAS 61790-53-2], du dioxyde de silicium [CAS 14808-60-7 ; 15468-32-3 ; 14464-46-1 ; 13778-37-5 ; 13778-38-6 ; 17679-64-0 ; 7631-86-9 ; 1343-98-2 ; 63231-67-4 ; 60676-86-0 ; 69012-64-2], des silicates d'argiles, des perlites, des aérogels de silice et leurs mélanges.  According to one embodiment, the inorganic siliceous particulate component & hydrophilic character is selected from amorphous silica gel [CAS 112926-00-8], diatomaceous earth [CAS 61790-53-2], silicon [CAS 14808-60-7; 15468-32-3; 14464-46-1; 13778-37-5; 13778-38-6; 17679-64-0; 7631-86-9; 1343-98-2; 63231-67-4; 60676-86-0; 69012-64-2], clay silicates, perlites, silica aerogels and mixtures thereof.
Avantageusement, le constituant silicé minéral hydrophile permet entre autre de pomper les liquides tels que l'hémorymphe des arthropodes entraînant une mort par déshydratation plus rapide.  Advantageously, the hydrophilic mineral silicic component makes it possible, among other things, to pump liquids such as arthropod hemorymph resulting in a faster death by dehydration.
De manière connue, le procédé pour rendre partiellement ou totalement hydrophobe une silice minérale hydrophile consiste à faire mtervenir soit un agent hydrophobe de type organosfliceux, une résine (liquide ou solide), soit une solution anhydre d'agent hydrophobe de type halogénoalcane, halogénosilane par exemple, soit des vapeurs d'organosilanes en présence de gaï inerte Un tmtement supplémentaire par k chaleur peut être apporté pour améliorer rhydcophobicité des particules. Les constituants patticulaires silices hydrophiles ci-dessus énumérés sont susceptibles d'être traités pour les rendre hydtophobes. Le constituant patticuJaire silicé hydrophobe d'origine minérale conforme a la présente invention est donc susceptible d'être obtenu par l'une des réactions d¾ydrophobisation ci-dessus définies. In known manner, the process for rendering a hydrophilic mineral silica partially or completely hydrophobic consists in preventing either an organosulfide-type hydrophobic agent, a resin (liquid or solid) or an anhydrous solution of hydrophobic agent of the haloalkane type, or halosilane by for example, organosilane vapors in the presence of gai inert An additional heat can be provided to improve the hydrophobicity of the particles. The above-listed hydrophilic hydrophilic silica constituents are likely to be treated to render them hydropophobic. The hydrophobic siliceous ceramic component of mineral origin in accordance with the present invention is therefore capable of being obtained by one of the above-defined hydrophobization reactions.
Selon un mode de mise en œuvre, le constituant silicé 1 caractère Hydrophobe est une silice minérale choisie dans le groupe formé par de la (1,1,1 -triméthyl-N- (triméthylsilyl) silanaminc [CAS 68909-20-6], de la sutee fumée post-traitée [CAS 68611-44-9 : 112945-52-5 ; 92797-60-9 ; 844491-94-7 ; 68611-44-9], du gel de silice amorphe post-traité, de la terre de diatomée post- traitée, du dioxyde de silicium, post-traité, des silicates métalliques insolubles, des silices précipitées comme le diméthyi siloxane [CAS 67762-90-7], des aérogels de silice post-traité ; la silice organique étant choisie parmi h silice de az [CAS 68553-81-1] ou les fibres de bambou [CAS 91771-32-3] et leurs mélanges. According to one embodiment, the hydrophilic silicate component 1 is a mineral silica selected from the group consisting of (1,1,1-trimethyl-N- (trimethylsilyl) silanaminc [CAS 68909-20-6], post-treated smoke (CAS 68611-44-9: 112945-52-5; 92797-60-9; 844491-94-7; 68611-44-9), post-treated amorphous silica gel, post-treated diatomaceous earth, silicon dioxide, post-treated, insoluble metal silicates, precipitated silicas such as dimethyl siloxane [CAS 67762-90-7], post-treated silica aerogels, organic silica being selected from silica az [CAS 68553-81-1] or bamboo fiber [CAS 91771-32-3] and mixtures thereof.
Avantageusement, le constituant paitiailaire silicé à caractère hydrophobe permet entre autre de déstructurer la cuticule des arthropodes entraînant une mort par déshydratation plus rapide.  Advantageously, the siliceous pieziary component hydrophobic nature allows among other destructure cuticle arthropod resulting in death by dehydration faster.
Selon un mode de mise en œuvre, les constituants particulaires silices hydrophile et hydrophobe ont une distribution granulométrique moyenne comprise entre 20 et 100 um, pour une surface spécifique (BEI) comprise entre 85 et 300 mâ/g. En effet, A a été observé qu'un constituant silicé hydrophile ou hydrophobe peut présenter plusieurs surfaces spécifiques différentes et que l'action insecticide qui lui est associée s'améliore avec l'augmentation de la surface spécifique. In one implementation mode, the particle constituents hydrophilic and hydrophobic silicas have an average particle size distribution between 20 and 100 microns, for a specific surface area (EIB) between 85 and 300 m / g. Indeed, A has been observed that a hydrophilic or hydrophobic siliceous component may have several different specific surfaces and that the insecticidal action associated with it improves with the increase of the specific surface area.
Avantageusement, la granulométrie de la poudre, donc de chacun des constituants particulaires silicés permet d'obtenir une rémanence de son effet pesticide avec de faibles risques d'accoutumance due au mode d'action 6 emi-mécanique à la différence des pesticides chimiques usuels. Enfin, la granulométrie spécifique des particules permet d'obtenir une bonne pénétration et accumulation desdites particules jusque dans les interstices des zones de surface d'application a traiter où peuvent aussi se cacher les arthropodes rampants visés. Advantageously, the particle size of the powder, and therefore of each of the siliceous particulate constituents makes it possible to obtain a remanence of its pesticidal effect with low risks of habituation due to the emi-mechanical mode of action, unlike the usual chemical pesticides. Finally, the specific particle size of the particles makes it possible to obtain good penetration and accumulation of said particles into the interstices of the areas of the application surface to be treated, where the target crawling arthropods can also be hidden.
Selon un mode de mise en oeuvre, le mélange de deux fractions de constituants particulaires silices à caractère hydrophile et hydrophobe constitue entre 10 et 100% en poids de l'ensemble de la poudre sèche, le complément a 100% étant constitué par une poudre inerte, qui n'a pas d'action pesticide significative, servant de diluant pour la distribution par épandage de l'ensemble de la poudre sèche sur la surface d'application du milieu a traiter.  According to one embodiment, the mixture of two fractions of hydrophilic and hydrophobic particulate silica constituents constitutes between 10 and 100% by weight of all the dry powder, the remainder being constituted by an inert powder. , which has no significant pesticidal action, serving as a diluent for the spreading distribution of all the dry powder on the application surface of the medium to be treated.
Selon un mode de mise en œuvre, les adjuvants peuvent être choisis parmi une poudre inerte, un solvant liquide, un agent répulsif, ou le mélange de ceux-ci Le solvant liquide peut être aqueux et/ou non aqueux, miscible à l'eau choisi parmi réthanol, le propanol, Fisopropanol, le 2,5,7,10- tcu^oxaundécane, le propylène carbonate, l'acétone, la mémyléœykétone, la méthjlpropylcétone, la méthylbutylcétofle, ou leurs mélanges. L'agent répulsif peut être des dérivés monoterpéruques d'huiles eMenùelles, une huile essentielle, ou leurs mélanges. Les dérivée d'huiles essentielles peuvent être des alcools comme le géraniol, le dtronellol, l'eugénol, des aldéhydes comme le àtronelhL L'huile essentielle peut être l'huile essentielle de thym, l'huile essentielle de menthe poivrée, ou leurs mélanges. Lorsque l'agent répulsif est présent, il peut représenter de 0,5 et 5% en poids de la poudre, prise dans son ensemble. Lorsque le solvant liquide est présent, il peut représenter de 2 i 10% en poids de la poudre, prise dans son ensemble. According to one embodiment, the adjuvants may be chosen from an inert powder, a liquid solvent, a repellent, or a mixture thereof. The liquid solvent may be aqueous and / or non-aqueous, miscible with water. selected from among ethanol, propanol, isopropanol, 2,5,7,10- tcu ^ oxaundécane, propylene carbonate, acetone, mémyléœykétone, the meth j lpropylcétone, the méthylbutylcétofle, or mixtures thereof. The repellent agent may be monoterperic derivatives of essential oils, an essential oil, or mixtures thereof. Derivatives of essential oils may be alcohols such as geraniol, dtronellol, eugenol, aldehydes such as atronelhL The essential oil may be thyme essential oil, peppermint essential oil, or mixtures thereof . When the repellent agent is present, it can represent 0.5 and 5% by weight of the powder, taken as a whole. When the liquid solvent is present, it can be from 2 to 10% by weight of the powder as a whole.
Avantageusement, la poudre est dispersée dans le solvant liquide qui la compatibilise avec un gaz qui sert de gaz propulseur pour distribuer l'ensemble en aérosol  Advantageously, the powder is dispersed in the liquid solvent which compatibilises it with a gas which serves as a propellant for distributing the aerosol assembly.
Selon un mode de mise en œuvre, la poudre inerte est choisie dans le groupe formé par le talc, l'alumine, le feldspath, carbonate de calcium, la dolomie, le silicate de calcium, l'argile, ou leurs mélanges.  According to one embodiment, the inert powder is selected from the group consisting of talc, alumina, feldspar, calcium carbonate, dolomite, calcium silicate, clay, or mixtures thereof.
Selon un mode de mise en œuvre, la surface d'application à caractère hydrophile est une surface inerte non biologique de type revêtement, le sol ; et la surface d'application à caractère hydrophobe peut être une surface biologique de type peau ou une surface inerte non biologique, cette dernière constituant la surface préférée.  According to one embodiment, the hydrophilic application surface is a non-biological inert coating surface, the floor; and the hydrophobic surface of application may be a skin-like biological surface or a non-biological inert surface, the latter being the preferred surface.
Les arthropodes rampants nuisibles sont notamment les blattes, les punaises de lit, les charançons, les ténébriox», des larves de mouches et de lépidoptères, les acariens ou de manière plus spécifique contre les différents stades de développement des parasites des animaux tels que les puces, les tiques, les poux rouges pour lesquels la poudre sèche est appliquée sur le corps d'un animal ou sur son environnement  Creeping arthropods include cockroaches, bed bugs, weevils, tenebriox, fly and lepidopteran larvae, mites, or more specifically the different stages of development of animal parasites such as fleas. , ticks, red lice for which the dry powder is applied to the body of an animal or its environment
L'invention a poux second objet, une poudre sèche à action pesticide renfermant un mélange synergique d'au moins une traction de constituant p articulaire silicé minéral à caractère hydrophile et au moins une fraction de constituant patu'culaire silicé minéral et/ou organique à caractère hydrophobe, catactérisée en ce que le ratio massique entre les dites fractions hydrophile et hydrophobe étant respectivement compris entre 1:10 et 2:1 et, en ce qu'elle comprend, en outre, un adjuvant.  The invention has a second object, a pesticide-containing dry powder comprising a synergistic mixture of at least one hydrophilic hydrophilic mineral peat constituent and at least one mineral and / or organic hydrophobic character, catactérisée in that the mass ratio between said hydrophilic and hydrophobic fractions being respectively between 1:10 and 2: 1 and, in that it further comprises an adjuvant.
Selon un mode de réalisation, la poudre sèche a action pesticide comprend :  According to one embodiment, the pesticide-containing dry powder comprises:
- 1 à 20% en poids de constimant particulaire silicé à caractère hydrophobe,  1 to 20% by weight of particulate siliceous particulate with hydrophobic character,
~ 9 a 40% en poids de constituant silicé minéral à caractère hydrophile,  ~ 9 to 40% by weight of hydrophilic mineral siliceous component,
- 40 à 90% en poids d'adjuvant Selon un mode de réalisation, le comtituant paracukire silici minéral à caractère hydrophile est choisi parmi du gel de silice amorphe [CAS 112926-00-8], de la terre de diatomée [CAS 61790-53- 2], du dioxyde de silicium [CAS 14808-60-7 ; 15468-32-3 ; 14464-46-1 ; 13778-37-5 ; 13778-38-6 ; 17679-64-0 ; 7631-86-9 ; 1343-98-2 ; 63231-67-4 ; 60676-86-0 ; 69012-64-2J, des silicates d'argiles, des p édites, des aérogels de silice et leurs mfiLangee. 40 to 90% by weight of adjuvant According to one embodiment, the hydrophilic mineral silicic paracukite compound is selected from amorphous silica gel [CAS 112926-00-8], diatomaceous earth [CAS 61790-53-2], silicon dioxide [ CAS 14808-60-7; 15468-32-3; 14464-46-1; 13778-37-5; 13778-38-6; 17679-64-0; 7631-86-9; 1343-98-2; 63231-67-4; 60676-86-0; 69012-64-2J, clay silicates, powders, silica aerogels and mixtures thereof.
Selon un mode de réalisation, le constituant silicé à caractère hydrophobe est une silice tymfaU choisie dans le groupe formé par de la (l>l,l-trimcthyl-N-(tiirDéthyl3Îlyi) silanamine [CAS 68909- 20-61, de la silice fumée post-trsitée [CAS 68611-44-9 ; 112945-52-5 ; 92797-60-9 ; 844491-94-7 ; 68611-44-9], du gel de silice amorphe post-traité, de la terre de dktomée post-traitée, du dioxyde de silicium post-traité, des silicates métalliques insolubles, des silices précipitées comme le diméthyl siloxane [CAS 67762-90-7], des aérogels de silice post-traité ; la silice organique étant choisie parmi la silice de m [CAS 68553-81-1] ou les fibres de bambou [CAS 91771-32-3] et leurs mélanges. According to one embodiment, the hydrophobic silica component is a tymfaU silica selected from the group consisting of (1 > 1, 1-trimethyl-N- (tri-methyl) silanyl) silanamine [CAS 68909- 20-61, silica post-trash smoke (CAS 68611-44-9; 112945-52-5; 92797-60-9; 844491-94-7; 68611-44-9), post-treated amorphous silica gel, post-treated dtctomée, post-treated silicon dioxide, insoluble metal silicates, precipitated silicas such as dimethyl siloxane [CAS 67762-90-7], post-treated silica aerogels, the organic silica being selected from silica of m [CAS 68553-81-1] or bamboo fibers [CAS 91771-32-3] and mixtures thereof.
Selon un mode de réalisation, les constituants pardculaires silicés à caractère hydrophobe et hydrophile ont une distribution granulométrique moyenne comprise entre 20 et 100 um, pour une surface spécifique (BEI) comprise entre 120 et 300 mVg.  According to one embodiment, the hydrophobic and hydrophilic paricellular silica components have a mean particle size distribution of between 20 and 100 μm, for a specific surface area (BEI) of between 120 and 300 mVg.
Selon un mode de réalisation, le mélange des deux fartions de constituants paruculairee silicés a caractère hydrophile et hydrophobe constitue entre 10 et 100% en poids de l'ensemble de la poudre sèche, le complément à 100% étant constitué pat une poudre inerte, qui n'a pas d'action pesticide significative.  According to one embodiment, the mixture of the two waxes of silicic and hydrophilic parucular constituents constitutes between 10 and 100% by weight of all the dry powder, the 100% complement consisting of an inert powder, which has no significant pesticidal action.
Selon un mode de réalisation, l'adjuvant peut être choisi parmi une poudre inerte, un solvant liquide, un agent répulsif, ou le mélange de ceux-ci. Le solvant liquide peut être aqueux et/ou non aqueux, miscible à l'eau choisi parmi réthanol, le propenol, Pisopropanol, le 2,5,7,10- téttaoxaundécane, le propylène carbonate, l'acétone, la méthyléthylcétone, la méthylpropylcétone, la méthylbutylcétone, ou leurs mélanges. L'agent répulsif peut être des dérivés monoterpéniques d'huiles essentielles, une huile essentielle, ou leurs mélanges. Les dérivés d'huiles essentielles peuvent être des alcools comme le géraniol, le dtroneHol, l'eugénoL des aldéhydes comme le riteoneUaL L'huile essentielle peut être l'huile essentielle de thym, l'huile essentielle de menthe poivrée, ou leurs mélanges.  According to one embodiment, the adjuvant may be selected from an inert powder, a liquid solvent, a repellent, or the mixture thereof. The liquid solvent may be aqueous and / or non-aqueous, miscible with water selected from among ethanol, propenol, isopropanol, 2,5,7,10-tetoxoxundecane, propylene carbonate, acetone, methyl ethyl ketone and methylpropylketone. , methylbutylketone, or mixtures thereof. The repellent agent may be monoterpene derivatives of essential oils, an essential oil, or mixtures thereof. Derivatives of essential oils may be alcohols such as geraniol, dtroneHol, eugenol aldehydes such as riteoneUaL The essential oil may be thyme essential oil, peppermint essential oil, or mixtures thereof.
Selon un mode de réalisation, k poudre sèche à action pesticide comporte : According to one embodiment, the pesticide-containing dry powder comprises:
- 1 à 88% en poids de constituant particulaire silicé minéral à caractère hydrophobe, 1 to 88% by weight of mineral siliceous particulate component of hydrophobic nature,
- 9 à 91% en poids de constituant pardculaire silicé à caractère hydrophile, 9 to 91% by weight of silicic pardical component with hydrophilic nature,
- 0 à 90% en poids de poudre inerte.  0 to 90% by weight of inert powder.
Selon une variante de mode de réalisation, k poudre sèche à action pesticide, comporte : 1 à 20% en poids de constituant parttculaùe silice à caractère hydrophobe,According to an alternative embodiment, a dry powder with a pesticidal action comprises: 1 to 20% by weight of hydrophobic part-silica component,
9 à 40% εα poids de constituant particulaite silice minéral à caractère hydrophile, 9 to 40% by weight of particular constituent hydrophilic mineral silica,
40 à 90% en poids de poudre inerte.  40 to 90% by weight of inert powder.
Selon un mode de réalisation, la poudre inerte est choisie dans le groupe formé pat le talc, l'alumine, le feldspath, carbonate de calcium, la dolomie, le silicate de calcium et leurs mélanges la poudre in&tte est choisie dans le groupe formé par le talc, JWurnine, le feldspath, le carbonate de calcium, la dolomie, le silicate de calcium, l'argile, ou leurs mélanges. According to one embodiment, the inert powder is selected from the group consisting of talc, alumina, feldspar, calcium carbonate, dolomite, calcium silicate and mixtures thereof. The inert powder is selected from the group consisting of talc, wooline, feldspar, calcium carbonate, dolomite, calcium silicate, clay, or mixtures thereof.
Les exemples qui suivent sont fournis pour illustrer l'ijavention, sans en limiter sa portée.  The following examples are provided to illustrate the intent, without limiting its scope.
Toutes les figures représentent le taux de survie d'un arthropode cible en fonction du temps après traitement avec une poudre sèche conforme à l'invention. All figures represent the survival rate of a target arthropod as a function of time after treatment with a dry powder according to the invention.
La figure 1 représente une courbe de survie moyenne (n=3) des puces (Ctenocepba&dès canii) après traitement avec une poudre sèche renfermant un mélange de 10% de suartamine (CAS 68909-20- 6] et de 30% de terre de diatomée [CAS 61790-53-2], complétée à 100% avec du talc. Les quantités massiques de 0,6 g/m2, 3,1 g/ m2 et 6,3 g/ma sont appliquées sur une moquette à poil ras couvrant une partie du sol (environ 45%) d'un récipient (~360 cm3) dans lequel sont placées 20 à 30 puces. On observe que l'action pesticide envers les puces augmente en fonction de la quantité de la poudre appliquée sut la moquette. En effet, au bout de 4 heures, 12,5% des puces survivent lorsque la quantité de la poudre est de 6,3 g/m2, ce même taux de survie n'est atteint qu'au bout de 8 heures pour une quantité de poudre de 3,1 g/m2. Lorsque l'on applique une quantité de poudre de 0,6 g/mz 5 le taux de survie de puces est de 55% après 8 heures. Il faut ainsi 4 heures pour atteindre une mortalité signifîcativement différente du contrôle avec des quantités de poudre allant de
Figure imgf000009_0001
FIG. 1 represents a mean survival curve (n = 3) of the fleas (Ctenocepba & canii) after treatment with a dry powder containing a mixture of 10% suartamine (CAS 68909-20-6) and 30% diatomaceous earth. [CAS 61790-53-2], supplemented to 100% with talc. the mass amounts of 0.6 g / m 2, 3.1 g / m 2 and 6.3 g / m was applied on a carpet hair covering part of the ground (about 45%) of a container (~ 360 cm 3 ) in which are placed 20 to 30 chips It is observed that the pesticide action towards the chips increases according to the amount of the powder 12.5% of fleas survive when the amount of powder is 6.3 g / m 2 , the same survival rate is reached at the end of 8 hours a quantity of powder of 3.1 g / m 2. When applying a quantity of powder of 0.6 g / m z 5 the chip survival rate is 55% after 8 hours. It it takes 4 hours to reach a mortality significantly different from control with amounts of powder ranging from
Figure imgf000009_0001
Figure imgf000009_0002
respectivement. Après 72 heures (non représenté), alors qu'en l'absence de ttaitement pat la poudre, 92+2% des puces ont survécu, toutes les puces placées sur la moquette traitée sont mortes quelque soit la quantité massique de poudre appliquée.
Figure imgf000009_0002
respectively. After 72 hours (not shown), while in the absence of powder treatment, 92 + 2% of the chips survived, all chips placed on the treated carpet died regardless of the amount of powder applied.
La figure 2 représente une courbe de survie moyenne (n=3) des ténébtions (/ilphitobius âiapêrintti) après traitement avec une poudre sèche renfermant un mélange de 10% de silanaminc [CAS 68909-20-6] et de 30% de tette de diatomée [CAS 61790-53-2], complétée à 100% avec du talc. Les quantités massiques de 7 g/m2, et 15 g/ m2 sont appliquées sut une moquette à pois ras couvrant toute la surface d'un sol d'un récipient (565 mL) dans lequel sont placées une vingtaine de ténébrions. On observe que l'action pesticide envers les ténébtions augmente en fonction de la quantité de la poudre. En effet, après 24 heures, avec une quantité de poudre de 15 g/ m2, seuls 25%±9% de ténébrions survivent. A cette même quantité, tous les ténébrions sont tués après 48 heures, alors qu'ils restent tous vivants dans le contrôle. Une quantité de poudte de 7 g/m2, permet de tuer seulement 5%±2,5¾ de t&nébaons en 48 heures et il reste encore 67%±16% de ténébrions vivants après 6 jours. Néanmoins, La mortalité devient significativement différente du contrôle avec des quantités de poudre de 15 g/m* (test Chr\ p<Q,l%) et 7 g/ma (test Chi2, p<5%) dès 24 heures et 72 heures respectivement FIG. 2 represents a mean survival curve (n = 3) of the flavenes (/ ilphitobius aapreintint) after treatment with a dry powder containing a mixture of 10% of silanaminc [CAS 68909-20-6] and 30% of tetrabiae. diatom [CAS 61790-53-2], 100% complete with talc. The mass quantities of 7 g / m 2 and 15 g / m 2 are applied to a carpet with flaxseed covering the entire surface of a soil of a container (565 ml) in which are placed about twenty tenebrians. It is observed that the pesticidal action towards the tenebtions increases according to the quantity of the powder. In fact, after 24 hours, with a quantity of powder of 15 g / m 2 , only 25% ± 9% of dark blueberries survive. At this same amount, all the beetles are killed after 48 hours, while they all live in control. A quantity of powder of 7 g / m 2 , kill only 5% ± 2.5¾ of t & nebaons in 48 hours and 67% ± 16% of live beetle trees remain after 6 days. Nevertheless, the mortality becomes significantly different from the control with powder quantities of 15 g / m * (test Chr \ p <Q, l%) and 7 g / m a (Chi 2 test, p <5%) from 24 hours and 72 hours respectively
La figure 3 représente une courbe de survie moyenne (n~3) des tiques (Ixodu nantis) après traitement avec une poudre sèche renfermant un mélange de 10% de silanamine [CAS 68909-20- 6] et de 30% de terre de dtatomée [CAS 61790-53-2], complétée à 100% avec du talc Les quantité* massiques de 1,5 g/m2 et 15 g/m1 sont appliquées de la même manière qu'à la figure 2 avec 5 tiques adultes. On observe que l'action pesticide envers les tiques augmente en fonction de la quantité de la poudre. En effet, au bout de 4 heures, seuls 7%16% des tiques survivent lorsque la quantité de la poudre est de 15 g/m*, et elles sont toutes tuées après 5 heures. Lorsque la quantité de poudre est de 1,5 g/m2, le taux de survie de tiques est de 73%±12% après 8 heures. Après 24 heures (non représenté), alors que sans traitement, 80%±10% des tiques ont survécu, toutes les tiques placées dans les traitements sont mortes quelle que soit la quantité massique de poudre appliquée, la mortalité due à l'application des deux quantités de poudre étant donc significative (test Chi*,^<l%). FIG. 3 represents a mean survival curve (n ~ 3) of ticks (Ixodu nantis) after treatment with a dry powder containing a mixture of 10% silanamine [CAS 68909-20-6] and 30% of a diatomaceous earth. [CAS 61790-53-2], 100% supplemented with talcum The mass quantities * of 1.5 g / m 2 and 15 g / m 1 are applied in the same manner as in FIG. 2 with 5 adult ticks . It is observed that the pesticidal action against ticks increases as a function of the quantity of the powder. Indeed, after 4 hours, only 7% 16% of ticks survive when the amount of the powder is 15 g / m *, and they are all killed after 5 hours. When the powder amount is 1.5 g / m 2 , the tick survival rate is 73% ± 12% after 8 hours. After 24 hours (not shown), while without treatment, 80% ± 10% of the ticks survived, all the ticks placed in the treatments died regardless of the quantity of powder applied, the mortality due to the application of the two quantities of powder are therefore significant (Chi * test, ^ <1%).
La figure 4 représente le pourcentage de survie des puces (CltMapbaBdij canis) lorsque la poudre sèche est déposée sur différents types de surfaces. La poudre utilisée est identique à celle des figures 1 à 3 ; la quantité de poudre utilisée étant de 10 g/ma. Comme surface, û a été choisi du papier filtre sec, du papier filtre humidifié arec 2,5 mL d'eau, et du papier filtre gras (imprégné de 2,5 mL d'huile végétale). On observe qu'au bout de 8 heures, les taux de survie des puces sont de 6,3%, 54,8% et 56,3% respectivement sur du papier filtre sec, du papier filtre humide et du papier filtre gras. Après 24 heures, toutes les puces sont tuées sur- les filtres sec et humide, alors qu'il reete 5% de survivantes sut le filtre gras et 83,5% sur le contrôle sans traitement Des différences significatives de mortalités avec le contrôle apparaissent ainsi dès 5h, 7h et 7h pour respectivement les tests de la poudre sur le papier filtre sec (test Cbia,/><0,1%), humide (test CM", p<5Vo) et gras (test Chia,/Xl%). FIG. 4 represents the percentage of survival of the chips (CltMapbaBdij canis) when the dry powder is deposited on various types of surfaces. The powder used is identical to that of FIGS. 1 to 3; the amount of powder used is 10 g / m a. As a surface, dry filter paper, filter paper moistened with 2.5 mL of water, and fatty filter paper (impregnated with 2.5 mL of vegetable oil) were selected. It is observed that after 8 hours, the survival rates of the chips are 6.3%, 54.8% and 56.3% respectively on dry filter paper, wet filter paper and fatty filter paper. After 24 hours, all fleas are killed on dry and wet filters, while 5% of survivors know the fat filter and 83.5% on the control without treatment. Significant differences in mortalities with the control thus appear. from 5h, 7h and 7h respectively for the tests of the powder on the dry filter paper (test Cbi a , /><0.1%), wet (test CM ", p <5Vo) and fat (test Chi a , / xl%).
La figure 5 représente le pourcentage de survie moyenne (n— 3) des blattes (fiJattitia gmanicà) lorsque la poudre sèche est déposée sur différents types de surfaces comme décrit à la figure 4. La poudre utilisée est identique à celle des figures 1 à 3 ; la quantité de poudre utilisée étant de 10 g/m2. Dès 6 heures de contact, toutes les blattes sont tuées sur du papier filtre sec, alors qu'il reste 81,4%±4»6% de suivants sur le papier filtre gras et 79,4%±2,5% sur le papier filtre humide. 11 est intéressant de noter que sur cette espèce d'insecte et aux taux du mélange utilisés, en plus d'une meilleure efficacité de la poudre appliquée sur le papier filtre sec comparé au papiex filtre humide (test Chiz à 4b, p<\¼) ou gros (test Chi? si 4h, /<0.1%), on observe aussi une meilleure efficacité de la poudre appliquée sur le papier filtre gras que sut le papier filtre humide (test Chi2 à 23h, /<0.1%). Néanmoins ces mortalités observées sut les trois types de surface sont toutes significathremeot meilleures que celles du contrôle dès 3h, 2h et 6h pour respectivement les tests de la poudre sur le papier filtre sec, humide et gras (test Chi1, jfr<5%). Après 48 heures, toutes les blattes sont tuées sur le filtre gros ainsi que sur le filtre humide, alors que l'on observe 100% de survie chez blattes du contrôle. FIG. 5 represents the average survival percentage (n-3) of the cockroaches (fiJattitia gmanicà) when the dry powder is deposited on different types of surfaces as described in FIG. 4. The powder used is identical to that of FIGS. ; the amount of powder used being 10 g / m 2 . For 6 hours of contact, all cockroaches were killed on dry filter paper, then it remains 81.4% ± 4 "of 6% following the fatty filter paper and 79.4% ± 2.5% in the wet filter paper. It is interesting to note that on this species of insect and at the mixing rates used, in addition to a better efficiency of the powder applied to the dry filter paper compared to the papiex wet filter (Chi z test at 4b, p <\ ¼) or fat (Chi? si test 4h, /<0.1%), there is also a better efficiency of the powder applied to the grease filter paper than the wet filter paper (Chi 2 test to 23h, /<0.1%). Nevertheless, these observed mortalities on the three types of surface are all significantly better than those of the control at 3h, 2h and 6h respectively for powder tests on dry, wet and greasy filter paper (Chi 1 test, j fr <5% ). After 48 hours, all cockroaches are killed on the big filter and on the wet filter, while 100% survival in control cockroaches is observed.
Le tableau 1 montre que l'efficacité insecticide d'un mélange de poudrée sèche est hée à l'espèce d'arthropode cible ainsi que sut la quantité appliquée selon la surface d'application et des ratios massiques de poudres hydrophiles et hydrophobes afin d'obtenir l'effet le plus radical.  Table 1 shows that the insecticidal effectiveness of a dry powder mixture is achieved with the target arthropod species as well as the amount applied according to the application area and the mass ratios of hydrophilic and hydrophobic powders in order to get the most radical effect.
Figure imgf000011_0001
Figure imgf000011_0001
Tableau 1 : relation entre la quant té du m ange a ns que eurs rat os mass ques a n o en r l'effet insecticide. LA figure 6 représente le pourcentage de survie des ténébrions (Apbiiobius dtaptriftus) en utilisant une poudre sèche ne renfermant pas de mélange de constituants paxticulaires silices hydrophile/hydtophobe. Table 1: Relation between the quantity of the male and female rats in the insecticidal effect. FIG. 6 represents the percentage survival of the tenebrians (Apbiiobius dtaptriftus) using a dry powder which does not contain a mixture of hydrophilic / hydtophobic paxticular silica components.
On a choisi la terre de diatomée [CAS 61790-53-2] et le -Ucocyde de silicdutn [CAS 7631-86-9], chacun à une quantité de 7 g/m?. On observe qu'après 24 heures, il teste encore 90% et 100% de survivants, respectivement pour le dïoxyde de silicium et la terre de diatomée. Après 48 heures, 100% des ténébrions sont encore vivante pour le contrôle, contre 98% et 15% de survie respective pour la texte de diatomée et le dioxydc de sflicinm. Après 72 heures, tous les ténébrions sont tuée par le dioxyde de ajlichim, alors que 95% survivent avec la terre de diatomée. La survie reste de 100% pour les ténébrions du contrôle. The diatomaceous earth [CAS 61790-53-2] and the silicaduct -Ucocyde [CAS 7631-86-9] were chosen, each at a quantity of 7 g / m 2. It is observed that after 24 hours, it still tests 90% and 100% of survivors, respectively for the silicon dioxide and the diatomaceous earth. After 48 hours, 100% of the beetles are still alive for control, compared with 98% and 15% respective survival for diatom text and Sflicin dioxid. After 72 hours, all the beetles are killed by ajlichim dioxide, while 95% survive with diatomaceous earth. Survival remains 100% for control pollen.
La figure 6 démontre bien que les constituants particulaires silices employés de manière individuelle ne permet pas d'obtenir une aedon pesticide satisfaisante, à l'inverse de la poudre sèche renfermant un mélange de constituants p articulaires silices hydrophile et hydxophobe conforme à l'invention. Par ailleurs, selon les arthropodes rampants et la nature de la surface sur laquelle se trouvent lesdits arthropodes, on peut adapter la quantité du mélange dans la poudre ainsi que la nature de chacun des constituants.  FIG. 6 clearly demonstrates that the individual silica constituents employed individually do not make it possible to obtain a satisfactory pesticidal aedon, unlike the dry powder containing a mixture of hydrophilic and hydropophobic silica-based articular constituents in accordance with the invention. Moreover, according to the creeping arthropods and the nature of the surface on which said arthropods are located, it is possible to adapt the quantity of the mixture in the powder as well as the nature of each of the constituents.

Claims

REVENDICATIONS
1. Procédé pour lutter contre les arthropodes rampants nuisibles, lesdirs arthropodes qui constituent des cibles sont susceptibles d'infester une sotie à traiter dont la surface d'application suc laquelle est répartie ladite poudre pouvant être sensiblement sèche, humide ou graisseuse, ladite poudre renfermant un mélange synergique de constituants p articulaires silices comportant au moins une fraction minérale à caractère hydrophile, au moins une traction tninéxale et/ou organique à caractère hydrophobe, caractérisé en ce que l'on applique une quantité dudit mélange par unité de surface d'application comprise entre 0,1 et 20 g/m2 , préfer endettement entre 0,5 et1. A method for controlling creeping arthropods, the target arthropods are capable of infesting a fungus to be treated, the application surface of which is distributed said powder may be substantially dry, moist or greasy, said powder containing a synergistic mixture of silicic paticular constituents comprising at least one hydrophilic mineral fraction, at least one hydrophobic and / or organic traction, characterized in that a quantity of said mixture is applied per unit area of application between 0.1 and 20 g / m 2 , preferably between 0.5 and
10 g/m1, et en ce que ladite poudre comportant : 10 g / m 1 , and in that said powder comprising:
- 1 à 20% en poids de constituant p articulaire silicé à caractère hydrophobe,  1 to 20% by weight of silicic p articular constituent with hydrophobic character,
- 9 à 40% en poids de constituant silicé minéral à caractère hydrophile,  9 to 40% by weight of hydrophilic mineral siliceous constituent,
- 40 à 90% en poids d'adjuvant  40 to 90% by weight of adjuvant
2. Procédé selon la revendication 1, caractérisé en ce que le ratio massique entre les tractions hydrophile et hydrophobe est respectivement compris entre 1:10 et 2:1.  2. Method according to claim 1, characterized in that the mass ratio between the hydrophilic and hydrophobic tractions is respectively between 1:10 and 2: 1.
3. Procédé selon l'une des revendications 1 ou 2, caractérisé en ce que le constituant pattiajkire silicé minéral a caractère hydrophile est choisi parmi du gel de silice amorphe [CAS 112926-00-8], de la terre de diacomée [CAS 61790-53-2], du dioxyde de S-Hcium [CAS 14808-60-7 ; 15468-32-3 ; 14464-46-1 ; 13778-37-5 ; 13778-38-6 ; 17679-64-0 ; 7631-86-9 ; 1343-98-2 ; 63231-67-4 ; 60676- 86-0 ; 69012-64-2], des silicates d'argiles, des p crûtes, des aérogels de silice et leurs mélanges. 3. Method according to one of claims 1 or 2, characterized in that the mineral siliceous pattiajkire component has hydrophilic character is selected from amorphous silica gel [CAS 112926-00-8], earth diacomée [CAS 61790 -53-2], S-Hcium dioxide [CAS 14808-60-7; 15468-32-3; 14464-46-1; 13778-37-5; 13778-38-6; 17679-64-0; 7631-86-9; 1343-98-2; 63231-67-4; 60676-86-0; 69012-64-2], clay silicates, crusts, silica aerogels and mixtures thereof.
4. Procédé selon l'une des revendications 1 ou 2, caractérisé en ce que le constituant silicé à caractère hydrophobe est une silice minérale choisie dans le groupe formé par de la (1,1,1- trjmethyl-N-(tidméthykuyl) silanatnine [CAS 68909-20-6], de la silice Aimée post-ttaitée [CAS 68611-44-9 ; 112945-52-5 ; 92797-60-9 ; 844491-94-7 ; 68611-44-9], du gel de silice amorphe posttraité, de la terre de dfctotnée posttraitée, du dioxyde de silicium post-traité, des silicates métalliques insolubles, des silices précipitées comme le dimethyl siloxane [CAS 67762-90-7], des aérogels de silice post-traité ; la silice organique étant choisie parmi la silice de riz [CAS 68553-81-4. Method according to one of claims 1 or 2, characterized in that the siliceous component hydrophobic character is a mineral silica selected from the group consisting of (1,1,1-trimethyl-N- (tidmethylkuyl) silanatnine [CAS 68909-20-6], post-titrated silica (CAS 68611-44-9, 112945-52-5, 92797-60-9, 844491-94-7, 68611-44-9), post-processed amorphous silica gel, post-treated deotriched earth, post-treated silicon dioxide, insoluble metal silicates, precipitated silicas such as dimethyl siloxane [CAS 67762-90-7], post-treated silica aerogels; the organic silica being selected from rice silica [CAS 68553-81-
11 ou les fibres de bambou [CAS 91771-32-3] et leurs mélanges. 11 or bamboo fiber [CAS 91771-32-3] and mixtures thereof.
5. Procédé selon l'une des revendications précédentes, caractérisé en ce que les constituants particulait.es silices hydrophile et hydrophobe ont une distribution granulométtique moyenne comprise entre 20 et 100 um, pour une. surface spécifique (BEI) comprise entre 85 et 300 mV g-5. Method according to one of the preceding claims, characterized in that the particular constituents . The hydrophilic and hydrophobic silicas have an average particle size distribution of between 20 and 100 μm, for one. surface area (EIB) between 85 and 300 mV g-
6. Procédé selon l'une des revendications précédentes, caractérisé en ce que les adjuvants sont choisis parmi une poudre inerte, un solvant liquide, un agent répulsif, ou le mélange de ceux-ci6. Method according to one of the preceding claims, characterized in that the adjuvants are chosen from an inert powder, a liquid solvent, a repellent, or the mixture thereof
7. Procédé selon la revendication 5, caractérisé en ce que le solvant liquide est aqueux et/ ou non aqueuse, miscible à l'eau choisi parmi l'éthanol, le propanol, Γίβορτορβποΐ, le 2,5,7,10- tétraoxaundécane, le propylène carbonate, l'acétone, la mémylé&ylcétone, la méthylpropyleétone, la méwylbutylcétone, ou leurs mélanges. 7. Method according to claim 5, characterized in that the liquid solvent is aqueous and / or non-aqueous, miscible with water selected from ethanol, propanol, Γίβορτορβποΐ, 2,5,7,10- tetraoxaundecane, propylene carbonate, acetone, memyl & ketone, methylpropylketone, mewylbutylketone, or mixtures thereof.
8. Procédé selon la tcvcndication 5, caractérisé en ce que l'agent répulsif est choisi parmi le géraniol, le citronellol, l'eugénol, l'huile essentielle de thym, l'huile essentielle de menthe poivrée, ou leurs mélanges.  8. Method according to the 5, characterized in that the repellent agent is selected from geraniol, citronellol, eugenol, essential oil of thyme, peppermint essential oil, or mixtures thereof.
9. Procédé selon l'une des revendications précédentes» caractérisé en ce que la poudre inerte est choisie dans le groupe formé par le talc, l'ahinune, le feldspath, carbonate de calcium, la dolomie, le silicate de calcium, l'argile, ou leurs mélanges. 9. Method according to one of the preceding claims "characterized in that the inert powder is selected from the group consisting of talc, ahinune, feldspar, calcium carbonate, dolomite, calcium silicate, clay , or their mixtures.
10. Poudre sèche a action pesticide renfermant un mélange synergique d'au moins une fraction de constituant particulaire silicé minéral à caractère hydrophile et au moins une traction de constituant p turticulaire silicé minéral et/ou organique à caractère hydrophobe, caractérisée en ce que le ratio massique entre lesdites fractions hydrophile et hydrophobe étant respectivement compris entre 1:10 et 2:1 et en ce qu'elle comprend, en outre, un adjuvant.  10. A pesticide-containing dry powder containing a synergistic mixture of at least one hydrophilic mineral siliceous particulate component fraction and at least one hydrophilic hydrophobic mineral and / or organic polystyrene component traction, characterized in that the ratio of the weight between said hydrophilic and hydrophobic fractions being respectively between 1:10 and 2: 1 and in that it further comprises an adjuvant.
11. Poudre selon la revendication 10, caractérisée en ce qu'elle comporte :  11. Powder according to claim 10, characterized in that it comprises:
- 1 à 20% en poids de constituant particulaire silicé i caractère hydrophobe,  1 to 20% by weight of siliceous particulate component of hydrophobic character,
- 9 i 40% en poids de constituant silicé minéral à caractère hydrophile,  9 to 40% by weight of hydrophilic mineral siliceous constituent,
- 40 à 90% en poids d'adjuvant  40 to 90% by weight of adjuvant
12. Poudre selon l'une des revendications 10 ou 11, caractérisée en ce que le constituant paxticukire silicé minéral à caractère hydrophile est choisi parmi du gel de silice amorphe [CAS 112926-00-8], de la terre de diatomée [CAS 61790-53-2], du dioxyde de silicium [CAS 14808-60- 7 ; 15468-32-3 ; 14464-46-1 ; 13778-37-5 ; 13778-38-6 ; 17679-64-0 ; 7631-86-9 j 1343-98-2 ; 63231-67-4 ; 60676-86-0 ; 69012-64-2], des silicates d'argiles, des perlites, des aérogels de silice et leurs mélanges.  12. Powder according to one of claims 10 or 11, characterized in that the hydrophilic mineral silicic paxticukire constituent is selected from amorphous silica gel [CAS 112926-00-8], diatomaceous earth [CAS 61790]. -53-2], silicon dioxide [CAS 14808-60-7; 15468-32-3; 14464-46-1; 13778-37-5; 13778-38-6; 17679-64-0; 7631-86-9, 1343-98-2; 63231-67-4; 60676-86-0; 69012-64-2], clay silicates, perlites, silica aerogels and mixtures thereof.
13. Poudre selon l'une des revendications 10 ou 11, caxactétisée en ce que le constituant silicé à caractère hydrophobe est une silice miw\UnU. choisie dans le groupe formé par de la (1,1,1- ttimé*yl-N-(triméthyl8ilyl) siUnamine [CAS 68909-20-6], de la silice fumée poet-traitée [CAS 68611-44-9 ; 112945-52-5 ; 92797-60-9 ; 844491-94-7 ; 68611-44-9], du gel de silice amorphe post-traité, de la tette de diatomée post-traitée, du dico-yde de silicium post-traité, des silicates métalliques insolubles, des silices précipitées comme le dimétbyi siloxane [CAS 67762-90-7], des aérogels de silice post-traité ; la silice organique étant choisie parmi la silke de ri* [CAS 68553-81- 1] ou les fibres de bambou [CAS 91771-32-3] et leurs mélanges.  13. Powder according to one of claims 10 or 11, cacatétisée in that the siliceous component hydrophobic character is a silica miw \ UnU. selected from the group consisting of (1,1,1-trifluoromethyl) -N- (trimethylsilyl) -amine [CAS 68909-20-6], fumed silica treated-treated [CAS 68611-44-9; 52797-60-9; 844491-94-7; 68611-44-9], post-treated amorphous silica gel, post-treated diatomaceous earth, post-processed silicon di-ydde treated, insoluble metal silicates, precipitated silicas such as dimethyl siloxane [CAS 67762-90-7], post-treated silica aerogels, the organic silica being selected from the above-mentioned silica [CAS 68553-81- 1] or bamboo fibers [CAS 91771-32-3] and mixtures thereof.
14. Poudre selon l'une des revendications 10 i 13, caractérisée en ce que les constituants particukires silicés hydrophile et hydrophobe ont une distribution gtanulométrique moyenne comprise entre 20 et 100 um, pour une surface spécifique (BEI) comprise entre 85 et 300 mVg- 14. Powder according to one of claims 10 13, characterized in that the hydrophilic and hydrophobic silica particulate components have an average particle size distribution of between 20 and 100 μm, for a specific surface area (BEI) of between 85 and 300 mVg.
15. Poudre selon la revendication 10, caractérisée en ce que l'adjuvant est choisi parmi une poudre mette, un solvant liquide, un agent répulsif ou le mélange de ceux-ci 15. The powder as claimed in claim 10, characterized in that the adjuvant is chosen from a put powder, a liquid solvent, a repellent agent or the mixture thereof.
16· Poudre selon la revendication 15, caractérisée en ce que le solvant liquide est aqueux et/ou non aqueux, miscible à l'eau choisi parmi l'éthanol, le propanol, l'isopropanol, le 2,5,7,10- téttaôxaundécane, le ptopylène carbonate, l'acétone, la mémyiéthylcétone, la méthylpropyleétone, la méthylbutylcétone, ou leurs mélanges. 16 · Powder according to claim 15, characterized in that the liquid solvent is aqueous and / or non-aqueous, miscible with water selected from ethanol, propanol, isopropanol, 2,5,7,10- Tetraoxaundecane, ptopylene carbonate, acetone, methyl ethyl ketone, methylpropylketone, methylbutylketone, or mixtures thereof.
17. Poudre selon h revendication 15, caractérisée en ce que l'agent répulsif est choisi parmi le getaoiol, le dttonellol, l'eugénol, l'huile essentielle de thym, l'huile essentielle de menthe poivrée, ou leurs mélanges.  17. Powder according to claim 15, characterized in that the repellent agent is chosen from the getaolol, dttonellol, eugenol, essential oil of thyme, peppermint essential oil, or mixtures thereof.
18. Poudre selon la revendication 10, caractérisée en ce que la poudre inerte est choisie dans le groupe formé par le talc, l'alumine, le feldspath, le carbonate de calcium, la dolomte, le silicate de calcium, l'argile, ou et leurs mélanges. 18. Powder according to claim 10, characterized in that the inert powder is chosen from the group formed by talc, alumina, feldspar, calcium carbonate, dolomite, calcium silicate, clay, or and their mixtures.
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US20210176993A1 (en) * 2018-05-04 2021-06-17 Ab7 Innovation S.A.S.U. Insecticidal composition containing a hydrophobic silica
JP2021522351A (en) * 2018-05-04 2021-08-30 アーベー７ イノヴァシオン エス．アー．エス．ユ．Ａｂ７ Ｉｎｎｏｖａｔｉｏｎ Ｓ．Ａ．Ｓ．Ｕ． Insecticide composition containing hydrophobic silica
US11771095B2 (en) 2020-03-13 2023-10-03 Harpe Bioherbicide Solutions Inc. Herbicidal Mentha pantsd, extract compositions and methods of using same000000000000000,001
WO2022047520A1 (en) * 2020-09-01 2022-03-10 Murdoch University Method for the control of insects in stored products and structures
WO2022047521A1 (en) * 2020-09-01 2022-03-10 Murdoch University A method for controlling field insects

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