WO2005082141A1

WO2005082141A1 - Agricultural chemical formulation

Info

Publication number: WO2005082141A1
Application number: PCT/JP2004/002274
Authority: WO
Inventors: Kazuteru Ogawa; Tamotu Suzuki
Original assignee: Nippon Kayaku Kabushiki Kaisha
Priority date: 2004-02-26
Filing date: 2004-02-26
Publication date: 2005-09-09

Abstract

An agricultural chemical formulation containing the active ingredient of the agricultural chemical and an oil ingredient, characterized in that when it is diluted with water to a concentration for spreading, the diluted fluid is dropped onto a slide glass and the water is vaporized, at least a part of the oil ingredient forms an oil drop. The agricultural chemical formulation enhances the effectiveness inherent in the agricultural chemical and imparts the residual effectiveness to the chemical, with respect to the effectiveness to the pest insect.

Description

Agrochemical formulation technology

The present invention relates to a pesticide formulation and a method of spraying a pesticide, which increase the basic activity of a drug and enhance the effect on drug-resistant pests. 2. Description of the Related Art Conventionally, a wide variety of preparations that enhance insecticidal and herbicidal effects by adding animal and vegetable oils and / or mineral oils to agricultural chemical preparations have been widely studied. As a method of forming an effective oil film on the water surface of rice fields, Japanese Patent Publication No. 44-17400 discloses a mixture of hydrocarbon organic solvents, chlorinated hydrocarbon organic solvents, animal and vegetable oils and fatty acid esters mixed with phenol derivatives and resins. For surface application agents such as oil-in-oil suspension preparations and emulsions, Japanese Patent Application Laid-Open No. Sho 62-1996 / 2002 has studied and implemented granules prepared by impregnating vegetable oil in which a pesticidal component is mixed with a granular carrier. ing. In addition, oil-based suspension preparations mainly composed of animal and vegetable oils and / or mineral oils have been studied as a method for enhancing the herbicidal effect (Japanese Patent Application Laid-Open (JP-A) No. 1-110605; Japanese Patent Application Laid-Open Nos. Hei 4-2-1611, Heisei 4-2-1613, Hei 6-56 02, Hei 6-40 823, Hei 6-340 509, Hei 7 — 3 3 6 1 2, Canadian Patent 9 8 7 7 6 (1 9 7 5)).

However, in the above-mentioned conventional techniques, there is almost no technique for enhancing the efficacy against drug-resistant pests, and the enhancement of the efficacy was not sufficient. Furthermore, the effect of imparting residual effect could not be expected.

As a result of studying to solve the above-mentioned problems, the following invention has been attained. Disclosure of the invention

That is, the present invention

(1) A pesticide formulation containing an active pesticide and an oil, diluted to the spraying concentration with water, and the diluted solution is dropped on a slide glass to evaporate water. A pesticide product, wherein at least a part of the oil component forms oil droplets;

(2) The pesticidal preparation according to (1), wherein the pesticidal active ingredient is precipitated in the oil droplets.

(3) The pesticide formulation according to (1), wherein the oil droplet has a contact angle of 20 degrees or more.

(4) It contains an amphoteric surfactant, vegetable oil and Z or paraffinic mineral oil, and when the other components are diluted with water and sprayed, the oil components do not prevent oil droplets from forming on the slide glass. The pesticide formulation according to (1) or (2),

(5) The agricultural chemical formulation according to (4), wherein the vegetable oil has an iodine value of 150 or less.

(6) The agrochemical formulation according to (4), wherein the amphoteric surfactant is an imidazoline surfactant.

(7) The method according to (1) to (6), wherein the water solubility of the pesticidal active ingredient is 500 ppm by weight (20 ° C) or less, and the solid is solid at normal temperature (20 ° C). Any of the pesticide preparations described

(8) The pesticide formulation according to any one of (1) to (7), wherein the pesticide active ingredient is a hydrazine-based pesticide active ingredient.

(9) A pesticide formulation containing an active ingredient and an oil is dropped 100/1 onto a slide glass, the diluting solvent is evaporated, then diluted to a concentration at which oil droplets are formed, and sprayed. Pesticide spraying method,

(10) A pesticide spraying method comprising: dropping a pesticide formulation containing a pesticide active ingredient and an oil component onto a slide glass, diluting the oil to a concentration at which the oil droplets are formed when water is evaporated, and spraying.

(11) The agricultural chemical preparation according to any one of (1) to (10), wherein the active agricultural chemical ingredient is chromaphenozide, diazinon, debufenozide or carbosurphan.

About. Brief Description of Drawings

FIG. 1 is a copy of a micrograph showing typical oil droplet formation in a formulation of the invention.

FIG. 2 is a photomicrograph copy of Example 5 showing another typical oil droplet formation in a formulation of the invention.

FIG. 3 is a copy of an enlarged view of part A in FIG.

FIG. 4 is a gopy of a micrograph in Example 5.

FIG. 5 is a copy of a micrograph of Comparative Example 2 which is a general conventional preparation. BEST MODE FOR CARRYING OUT THE INVENTION

The agricultural chemical formulation of the present invention contains an active ingredient of an agricultural chemical and an oil, and when a diluted solution diluted with water to a spray concentration is dropped on a slide glass and air-dried, at least one part of the oil, preferably most of the oil Form oil droplets, and there is no particular limitation on the dosage form. Examples of the dosage form that can be employed in the present invention include a suspension, an emulsion, a solid suspension, a solid emulsion, a powder, a wettable powder, and the like, and preferably a suspension or an emulsion.

When the suspension of the pesticide formulation of the present invention is used, the suspension is diluted with water and sprayed, and then the water is volatilized so that the finely divided active pesticide is surrounded by oil droplets. Is preferred. The size of the oil droplets at this time may be large enough to surround the ground pesticidal active ingredient, but preferably the oil droplets have a diameter of 5 to 300 m, more preferably 30 to 300 m. ~ 500 ° is desirable. Conventionally, studies focused on the size of water droplets of the spray liquid have been widely conducted, but the effects on oil droplets after water volatilization as in the present invention, especially against pests / grass / fungi having resistance There is no description, and conventional products do not form such oil droplets after water evaporation.

In the pesticide formulation of the present invention, when an emulsion dosage form is adopted, after dilution and spraying with water, particles in which oil is emulsified adhere to the leaf surface, and after water is volatilized, Many oil droplets in which the pesticidal active ingredient is not finely divided are formed. Even in this state, the pesticide formulation of the present invention shows higher efficacy than the conventional formulation, but when the active pesticide component contains a solid component at room temperature, it may be in this state for several hours to several days. In some cases, if left for several tens of days, crystals of the pesticidal active ingredient will precipitate in the oil droplets, and the oil droplets will surround the fine active ingredient particles, thus exhibiting a long-term high efficacy. The contact angle of the oil droplet is preferably 20 degrees or more.

The presence or absence of the formation of oil droplets in the present specification can be easily investigated by the following method. First, dilute the test sample with water to the spraying concentration (for example, when diluting a pesticide formulation containing 5% of pesticide active ingredient by 1000 times, spray 100 ml of distilled water into a JlSllk bottle and then sample 100 1). After the addition, slowly add a spatula and stir 50 times to obtain a water dilution of the pesticidal active ingredient). Then, accurately collect the dilution 100 1 and slide it. After dripping on glass (7.6cm X 2.6cm), put it in 5 thermostats, leave it for 2 hours, and remove water completely. Then, use an optical microscope of OLYMPUS BH-2 (manufactured by OLYMPUS). Observe the condition at 40 × using an objective lens (Nikon, Nikon Plan4 0.1 160 /-) and an eyepiece (OLYMPUS, OLYMPUS WHK 10 X / 20L). The formation of oil droplets depends on the dilution ratio of water. If the concentration of oil (mineral vegetable oil, etc.) at the time of dilution with water becomes less than 100 ppm, collapse of oil droplets and insufficient surrounding of fine pesticide effective components will occur. Therefore, it is preferable to use 100 ppm or more.

The state of oil droplet formation of the agricultural chemical formulation of the present invention will be described with reference to the drawings based on the observation with the optical microscope. FIG. 1 is a micrograph showing a typical state of oil droplet formation in the pesticide formulation of the present invention. The micrograph was taken with a microscope set under the above conditions, taken as a digital image with an image scanner (600 dpi), and then subjected to halftone processing to produce a monoc image. The same applies to the other micrographs (FIGS. 2 to 5) attached to this specification. Also, In Fig. 1, Fig. 2, Fig. 4, and Fig. 5, the black bar at the lower left of the drawing is approximately 1 mm. As is clear from FIG. 1, oil droplets are formed. This becomes clearer when compared with FIG. 5, which was similarly diluted and air-dried using Comparative Example 2 which is a general conventional pesticide formulation. In FIG. 5, only a thin film is formed on the slide glass. FIG. 2 shows a microphotograph when Example 5 described later is used, and FIG. 3 shows an enlarged view of a portion A in FIG. In Fig. 1, oil droplets having a relatively uniform size were formed, but in Fig. 2, oil droplets larger than those existing in other parts were formed at the upper left of the drawing. The size of the oil droplet is not particularly limited, and an oil droplet having a uniform size or an oil droplet having an uneven size may be formed. Some oil droplets have black lumps. This is one in which the pesticidally active ingredient is precipitated, and is a preferred embodiment of the present invention. However, such a pesticidally active ingredient need not be precipitated in all oil droplets. The preparation of the present invention is used for commonly used plants / pests / fungi, but is particularly effective against plants / pests / "fungi" which have acquired resistance. The plant Z pest / fungus that has acquired the property has a half-lethal concentration of about 10 to 100 times that of the drug, so it is effective if it is not applied more than 10 times the conventional amount and in some cases However, when the agricultural chemical formulation of the present invention is used, the resistance to the chemical is remarkably reduced, and the pesticide can be sufficiently controlled at the usual application concentration.

Since no pesticide formulation in which oils form oil droplets as in the present invention has hitherto been available, the present inventors initially found that the effect of significantly reducing the resistance to the drug was not the physical effect of the oil droplets. It is considered possible that a control formulation without the active pesticide was prepared, and a biological test was conducted to investigate whether or not there was any biological activity without the drug, and it was confirmed that there was almost no activity and this was not a physical effect. Have been. Probably, the effect of attaching the pesticide active ingredient to the receptor is significantly increased, or the concentration of the pesticide active ingredient is extremely high due to the aggregation of the pesticide active ingredient in the oil droplets, and the mortality rate, bactericidal rate, Increase weeding rate It is thought that it is, but it is not certain at present.

In the present invention, as described above, it is preferable that the oil droplets surround the fine pesticidal active ingredient, and therefore it is preferable to use only a composition that does not destroy this state as the composition of the pesticide formulation. For example, organic bentonite, hydrous amorphous silicon dioxide, etc., which is an inorganic anti-settling agent often used as an anti-settling agent in formulations of pesticidal active ingredients, has a function of preventing sedimentation in this formulation. When an organic bentonite is added in a large amount, oil enters between the layers of the clay mineral montmorillonite, so that the state where oil droplets surround the active pesticide ingredient is significantly inhibited. In addition, experiments have shown that hydrous amorphous silicon dioxide absorbs oil into hydrous amorphous silicon dioxide due to its unique oil-absorbing ability, which also has the effect of inhibiting the surrounding of oil droplets. . However, these oil droplet inhibitors can be used as long as they do not destroy the desirable state, for example, by using a very small amount.

Next, each component of the pesticide formulation of the present invention will be described. However, there is no particular limitation on any component as long as oil droplets are formed. As the pesticidal active ingredient that can be used in the present invention, since the oil droplets exert their effects by enclosing the fine pesticidal active ingredient, their solubility in water is 500 ppm by weight (20) or less, Those which are solid at 0 ° C) are preferred. However, pesticidal active ingredients that have a solubility in water of 500 ppm or more and are liquid at room temperature can also be adapted when used in combination with the aforementioned pesticidal active ingredients. For pesticide active ingredients that do not need to focus on maintaining long-term efficacy, their main purpose is only to increase the basal activity.Solubility in water is 500 ppm or more, and the pesticide active ingredient that is liquid at room temperature is used alone. , Or may be used in combination. Specific examples thereof include the following, but are not limited thereto.

The active ingredients for insecticides and acaricides include N-tert-butyl-N '-(3,5-dimethylpentyl) -1,5-methyl-6-chromancarpohydrazide (generic name chromafuenozide), N' — Tert-butyl-N '-(4-ethylpentenezyl) -1,3,5-medimethylbenzohydrazide (generic name: tebu Hydrazine-based active ingredients such as phenozide), 1-naphthyl-N-methylcarbamate (generic name: NAC), 2- (ethylthiomethyl) phenyl-methyl carbamate (generic name: ethiofencarp), S—4-pheno Xyloxybutyl dimethylthiocarbamate (generic name: phenothiocalp), 2,3-dihydro-2,2-dimethylbenzofuran-7-yl (dibutylaminoamino) methyl carbamate (generic name: carbosulfan) Carbamate Active Ingredient, 0, 1-Jetyl-I-3,5,6-Trichloro-2-pyridylphosphorothioate (generic name: chlorpyrifos), 3-Jetoxyphosphorylthiomethyl-6-chlorobenzo Xazolone (generic name: hosalon), 2-methoxy-4H-1,3,2-benzodioxaphosphorin-1-sulfone Organic phosphorus-based active ingredients such as sulfide (generic name: salicion), (S) _ — cyano-3-monophenoxybenzyl = (1R, 3S) — 2,2 — dimethyl — 3 — (1,2 , 2,2-Tetrabromoethyl) Cyclopropanecarboxylate (generic name: tralomethrin), (RS) — «—cyano 3 _ phenoxybenzyl = (RS) — 2 — (4—c Pyrethroid-based active ingredients, such as 3-methylbutanoate (general name: fenvalerate), 2- (4-ethoxyphenyl), 1-methylpropyl = 3-phenoxybenzyl = ether (generic name: etofenprox); trans — 5 — (4-cyclohexenyl) — N-cyclohexyl 4-methyl-2-oxothiazolidine-13-hexylpoxamide (generic name: hexthiazox), 1- (4-cyclophenyl) — 3 — (2, 6— Difluorobenzoyl) rea (general name: difluvenzuron), 1 [3,5-dichloro-4-1 (3-chloro- 1-5-trifluoromethyl-2-pyridyloxy) phenyl] 1 3 — (2 Urea-based active ingredients such as, 6-difluo benzoyl) ゥ rare (generic name: chlorfluazuron).

The active ingredients of the herbicides are 11- (, ο; -dimethylpenzyl) 13- (4-methylphenyl) ゥ rea (generic name: Daimron), 1- (2-cl-lupenzil) 13_ (a, 1-dimethylpentyl) ゥ rare (generic name: JC-940), o— (3-butyl phenylphenyl) N— (6—methoxy-2-pyridyl) 1-N-methylthiocarbamate (generic name: pyributicarb), 2,4-dichlorophenyl—41 Ditrophenyl ether (generic name: nitrophen), 2,4-dichlorophenyl 3-methoxy-4-nitrophenyl ether (generic name: X—52), methyl 5- (2,4-dichlorophenoxy) 1 2-nitrobenzoate (generic name: bifenox), 2-benzothiazole-2-yloxy_N-methylacetoanilide (generic name: mefenacet), 2-bromo-N— (a, α-dimethylpentyl) , 3-Dimethylbutaneamide (generic name: promobutide), 2-chloro-1- (3-methoxy-2-phenyl) -methyl-2,2,6, -dimethylthioacetanilide (Generic name: NSK-850), 2- (1,2-dimethylpropylamino) -4-ethylamino-1,6-methylthio-1,3,5-triazine (generic name: dimethamethrin), 5-tertiary-butyl- 3- (2,4-dichloro-5-isopropoxyphenyl) -1,3,4-oxadiazol 2- (3Η) -one (generic name: oxadiazone), 4— (2,4-dichlorbe) 1,3-Dimethyl-5-phenacyloxy 1-pyrazole (pyrazoxyphen), 4- (2,4-dichloro-13-methylbenzoyl) —1,3-dimethyl-5- (4-methylphenacyl) Roxy) 1 1-pyrazole (generic name: benzophenap), 2- (2,4-dichloro-13-methylphenoxy) 1-propionanilide [chromeprop], 2- (2-naphthoxy) propionani Lid (generic name: nabroanilide), 2,4-bis (isopropylamino) 16-methylthio-1,3,5-triazine (generic name: promethrin), 2,4-bis (ethylamino) 6-methylthio-1,3,5-triazine (generic name: simethrin) and the like. The fungicide active ingredients include 0-2,6-dichloro-ρ-tolyl = 0, 〇-dimethylphosphorothioate (generic name: phos-methyl turquoise), 3'-isopropoxy-12-methyl-benzanili (Generic name: mepronil),, a, 1-trifluoro-3'-isopropoxy-l-toluanilide (Generic name: flutranil), 1- (4-cyclopentyl) 1-1-cyclopentyl-3-phenylurea (generic name: pencyclone), N-trichloromethylthiotetrahydrophthalimid (generic name: captan), 3- (3,5-dichloromouth phenyl) 1-N-isopropyl-2,4-dioxoimidazolidin-1 1-carboxamide (generic name: iprodione), zinc ethylenebisdithiocarbamate (generic name: zineb), bis (dimethylthio) Dilsulfide (generic name: thiuram), tetrachloride isophthalonitrile (generic name: TPN;), 4,5,6,7-tetrachlorofuylide (generic name: fusalide), 3,4 , 5,6-tetrachloro-N- (2,3-dichlorophenyl) phthalamic acid (generic name: tech-mouth phthalam), O-ethyl- S, S-diphenyldithiophosphonate (generic name: EDD P), N- (3,5-dichlorophenyl) — 1,2-dimethylcyclopropane-1,2 dicarboxymide (generic name) : Procymidone), (E) 14______________________________, α-trifluoro-N- (11-imidazo-l- 1-yl- 2--proboxixylidene) Name: triflumizole), 6- (3,5-dichloro-4-4-methylphenyl) -13 (2Η) -pyridazinone (generic name: diclomedine) and the like.

The oil used in the present invention is not particularly limited, and includes, for example, animal oils such as plant-derived vegetable oils and animal-derived whale oil, and mineral oils.

The vegetable oil used in the present invention is not limited. For example, olive oil, castor oil, papaya oil, camellia oil, coconut oil, white sesame oil, sesame oil, corn oil, rice bran oil, peanut oil, cottonseed oil, large oil Examples include soybean oil, rapeseed oil, linseed oil, cutting oil, sunflower oil, safflower oil, their fatty acids, and alkyl ester derivatives of the fatty acids. Among them, semi-dry oils and / or non-drying oils, which are hard to oxidize, are more preferable than drying oils having a large amount of unsaturated carbon, which is oxidized on the leaf surface and the like after carbonization of water, and is liable to solidify. If the oil droplets are extended, they are effectively inferior effectively. Castor oil, soybean oil, and white sesame oil are particularly effective in the present invention.

As the mineral oil, for the same reason, a saturated hydrocarbon liquid paraffin, a paraffin such as a paraffin petroleum, and the like can be mentioned, and if necessary, these may be used alone or in combination. Inspection of non-drying oil and semi-drying oil is carried out using a generally known iodine value, and an iodine value of 150 or less is preferable. The content in the preparation is not particularly limited, but is preferably from 10 to 90% by weight, and more preferably from 30 to 80% by weight.

In the pesticide formulation of the present invention, it is preferable to use a surfactant for forming oil droplets. Any surfactant can be used as long as it has the ability to form oil droplets.However, even if the surfactant does not have the ability to form oil droplets, the diluted water evaporates after spraying the agricultural chemical formulation with water. If an oil droplet can be formed after the formation, it can be used by mixing with a surfactant having a forming ability. Furthermore, when the pesticidal active ingredient is solid at room temperature, it is more preferable to use a surfactant that forms an enclosure of the pesticidal active ingredient particles with oil droplets. Examples of the surfactant having the ability to form such oil droplets and the ability to surround the pesticidal active ingredient in the oil droplets include amphoteric surfactants. Among the amphoteric surfactants, imidazoline is particularly preferred. Examples thereof include an alkylaminocarboxylic acid type, an alkylamino acid type and the like, and among them, an imidazoline type surfactant is particularly preferable. The content of the surfactant is preferably 0.1 to 20% by weight, more preferably 1 to 5% by weight. It should be noted that any surfactant having an oil droplet forming ability can be employed without being limited to the above-mentioned surfactants.

Further, in the present invention, in addition to the amphoteric surfactants described above, various surfactants can be used as long as they do not hinder the formation of oil droplets. Sorbitan fatty acid ester, polyoxyethylene styryl phenyl ether, polycarboxylate, dialkyl sulfosuccinate, alkyl sulfonate, alkylbenzene Sulfonate, lignin sulfonate, polyoxyethylene glycol alkyl ether, polyoxyethylene lauryl ether, polyoxyethylene alkyl ether, polyoxyethylene alkyl aryl ether, polyoxyethylene fatty acid ester, polyoxypropylene fatty acid ester , Alkyl diglycol ether sulfate, polyoxyethylene hydrogenated castor oil, styrylphenyl phosphate, benzoate, fatty acid polyglyceride, glycerin fatty acid ester, sorbitan monoolate, polyoxyethylene sorbin monolaurate, fatty acid alcohol polyglycol Ether polyoxyethylene alkyl aryl ether sulfate, polyoxyethylene alkyl aryl phosphate, and the like. If necessary, these may be mixed and used. In the present invention, a solvent can be used, but in order to produce the pesticide preparation of the present invention in a liquid such as an emulsion, it is essential that water is volatilized after spraying to form oil droplets. However, the boiling point is low and oil droplets are quickly lost, and as a result, crystals are formed, and solvents that are not surrounded by oil droplets cannot be used in the agricultural chemical formulation of the present invention. Therefore, it is preferable to select the most suitable one in consideration of crystallization and solubility depending on the active pesticide to be studied.

Specific examples of the solvent that can be used in the present invention include, for example, nitrogen-containing 'sulfur-containing solvents such as N-methylformamide, N-methylpyrrolidone, dimethylsulfoxide, 1,3-dimethyl-2-imidazolidinone, Alcohols such as propanol and isobutanol, dalicols such as propylene glycol, ethers, ketones such as cyclohexanone, methyl isobutyl ketone, fatty acids such as acetic acid, esters such as isopropyl acetate and butyl acetate, normal paraffin And aliphatic hydrocarbons such as isoparaffin, and aromatic hydrocarbons such as alkylbenzene, naphthalene, alkylnaphthalene, diphenyl, and phenyloxylylethane, but are not limited thereto.

As described above, the anti-settling agent and the solidifying agent that can be used in the present invention require that oil droplets surround the fine pesticidal active ingredient. Those having a destructive action are not suitable for use. For example, organic bentonite, which is an inorganic anti-settling agent often used as an anti-settling agent in formulations of pesticide active ingredients, hydrous amorphous silicon dioxide, etc. is added in an amount that has the function of preventing sedimentation. Then, in the case of organic bentonite, oil penetrates between the layers of the clay mineral montmorillonite, so that the state in which oil droplets surround the pesticidally active ingredient is significantly inhibited. In addition, experiments have shown that hydrous amorphous silicon dioxide absorbs oil into hydrous amorphous silicon dioxide due to its unique oil-absorbing ability, which also has the effect of inhibiting the surrounding of oil droplets. . However, these oil droplet inhibitors can be used in a small amount, as long as they do not destroy the desirable condition. In the pesticide formulation of the present invention, those which are suitable as an anti-settling agent and a solidifying agent are preferably water-soluble or dispersed in water and do not adsorb oil, and include, but are not limited to, the following: It is not something. Water-soluble inorganic compounds such as potassium salt, sodium salt, magnesium salt and ammonium salt of hydrochloric acid, sulfuric acid, nitric acid or acetic acid, and further, as organic compounds, xanthan gum, guar gum, sucrose, lactose, dextrin, polyvier alcohol, Examples include crystalline cell mouth, hydroxymethylcellulose, gelatin, sodium alginate, sodium polyacrylate, amino acids, alkenyl succinate esterified starch, etc., and these may be used alone or in combination of two or more. Can be.

Further, if necessary, an antifreezing agent such as propylene glycol and ethylene glycol, a stabilizer such as BHT, a synergist such as piperonyl butoxide, 1,2-benzisothiazolin-3-one, etc. Fungicides, coloring agents, fragrances, etc. can also be added.

The agricultural chemical formulation of the present invention can also be packaged in a water-soluble film to prevent the application worker from contacting the active ingredient. Any water-soluble film that can be used in the present invention can be used as long as it comes in contact with and dissolves in water. Specific examples of the water-soluble film that can be used include the following. It is not limited.

Polyvinyl alcohol, carboxymethyl cellulose, hydroxya A film obtained from one or more polymers such as tilcellulose, polybutylpyrrolidone, polyacrylic acid or a salt thereof, starch, and gelatin. The thickness of the film is preferably about 20 to: L00 m, more preferably about 30 to 60 xm.

The method for producing the pesticide preparation of the present invention will be specifically described below, but is not limited thereto.

Oil-based suspending agent; (1) Agrochemical active ingredients and, if necessary, surfactants, are dispersed in a dispersion medium such as vegetable oil and z or paraffinic mineral oil by a wet method such as sand grinder mill (Igarashi Kikai Seisakusho Co., Ltd.). A method of crushing to obtain a suspension in oil. (2) A method in which the pesticidal active ingredient is coarsely dry-pulverized in advance with a hammer mill or the like, and then wet-pulverized with a sand grinder mill in the same manner as in (1) to obtain a suspension in oil. (3) The active ingredients of pesticides are finely pulverized by dry pulverization using a supersonic jet pulverizer (Nihon Pneumatic Industrial Co., Ltd.) or the like, and the fine particles are directly added to a dispersing medium, a surfactant, etc., and stirred to obtain an oil. How to get a medium suspension. Emulsion; (4) A method in which a pesticidal active ingredient is dissolved in an appropriate solvent, and then a required amount of a vegetable oil and / or a paraffinic hydrocarbon and a surfactant are added. Susboemulsion; (5) Wet milling of pesticidal active ingredients and surfactants in a water solvent using a sand grinder mill (Igarashi Kikai Seisakusho Co., Ltd.), etc., and dispersion of vegetable oil and Z or paraffinic mineral oil in advance A method obtained by adding to a solution prepared by adding a medium and, if necessary, a surfactant.

(6) A method of obtaining the oily suspension prepared by the method of (1) or (2) or (3) by adsorbing the oily suspension on a solidifying agent having an oil absorbing ability.

Further, the pesticide preparation of the present invention can be applied by the same method as a general pesticide preparation. The pesticide formulation of the present invention is obtained by diluting an active ingredient of a pesticide to a normal spray concentration onto a slide glass, air-drying the oil, and then forming oil droplets by an oil component. As a result, oil droplets are formed on the leaves of the plant as well as on the slide glass. Also, depending on the pesticidal active ingredient used, the range of application concentration is wide, and it may be difficult to form oil droplets at some concentrations. It is preferable to select a spray concentration at which oil droplets are easily formed. Example

Examples of the present invention will be described below, but the present invention is not limited to these. Example 1

(1) Chromafenozide (purity 95%)-5.5 parts by weight

(2) Thick white sesame oil ... 84.5 parts by weight

(3) New Calgen D—2 1 2 (trade name, manufactured by Takemoto Yushi Co., Ltd., polyoxyethylene castor oil ether)-5.0 parts by weight

(4) Homogenol L-95 (trade name, Kao Corporation, imidazoline surfactant) "5.0 parts by weight

The above-mentioned components were uniformly mixed, and wet-pulverized with a sand grinder-mill at 1500 rpm for 30 minutes to obtain an oily suspension preparation having an average particle size of 5. This product was diluted 1000 times with water, which is a general dilution ratio, and after air-drying, oil droplets were formed around fine crystals that seemed to be chromaphenodizide. Example 2

(1) Chromafenozide (purity 95%)-5.5 parts by weight

(2) Thick white sesame oil ... 84.5 parts by weight

(3) Newcalgen D—2 1 2 (trade name, manufactured by Takemoto Yushi Co., Ltd., polyoxyethylene castor oil ether)… 5.0 parts by weight

(4) Homogenol L-95 (trade name, manufactured by Kao Corporation, imidazoline surfactant) · '· 5.0 parts by weight

(1) was dry-ground with a sample mill, placed in the homogeneous mixture of (2) to (4), and stirred to obtain an oily suspension preparation having an average particle size of 50 m. This product was diluted 1000 times with water, which is a general dilution ratio, and after air-drying, oil droplets were formed around fine crystals considered to be chromaphenozide. Example 3

(1) Chromafenozide (purity 95%)-5.5 parts by weight

(2) Thick white sesame oil ... 84.5 parts by weight

(3) Newcalgen D—2 1 2 (trade name, manufactured by Takemoto Yushi Co., Ltd., polyoxyethylene castor oil ether)-5.0 parts by weight

(1) was dry-pulverized with a supersonic jet mill, placed in a uniform mixture of (2) to (4), and stirred to obtain an oily suspension having an average particle size of 2.8 m. This product was diluted 1000 times with water, which is a general dilution ratio, and after air-drying, oil droplets were formed around fine crystals considered to be chromafenozide. Example 4

(1) Chromafenozide (purity 95%)-5.5 parts by weight

(2) Soybean oil… 8 2.5 parts by weight

(3) New Calgen D_ 2 1 2 (trade name, manufactured by Takemoto Yushi Co., Ltd., polyoxyethylene castor oil ether) ... 0 parts by weight

(4) Pyonin C-159-ES (trade name, manufactured by Takemoto Yushi Co., Ltd., imidazoline surfactant)… 5.0 parts by weight

The above components were uniformly mixed and wet-milled with a sand grinder at 500 rpm for 10 minutes to obtain an oily suspension preparation having an average particle size of 15_im. This product was diluted 1000 times with water, which is a general dilution ratio, and after air-drying, oil droplets were formed around fine crystals considered to be chromaphenozide. Example 5

(1) Chromafenozide (purity 95%)-5.5 parts by weight

(2) Castor oil ... 82.5 parts by weight

(3) New Calgen D—2 1 2 (trade name, manufactured by Takemoto Yushi Co., Ltd., polyoxy Ethylene castor oil ether) ... a. 0 parts by weight

(4) Homogenol L-95 (trade name, manufactured by Kao Corporation, imidazoline surfactant) — 5.0 parts by weight

The above components were uniformly mixed and wet-milled for 30 minutes with a sand grinder mill at 1500 rpm to obtain an oily suspension having an average particle size of 5 zm. This product was diluted 1000 times with water, which is a general dilution ratio, and after air-drying, oil droplets were formed around fine crystals that seemed to be chromaphenodizide. The micrographs under the above conditions are shown in FIGS. 2, 3 (enlarged part A in FIG. 2), and FIG. Example 6

(1) Chromafenozide (purity 95.8%)-5.5 parts by weight

(2) Cottonseed oil… 84.5 parts by weight

(4) Homogenol L95 (trade name, manufactured by Kao Corporation, imidazoline surfactant)… 5.0 parts by weight

The above components were uniformly mixed and wet-pulverized with a sand grinder mill at 1500 rpm for 20 minutes to obtain an oily suspension preparation having an average particle size of 5 m. This product was diluted 1000 times with water, which is a general dilution ratio, and after air-drying, oil droplets were formed around fine crystals that seemed to be chromaphenodizide. Example 7

(1) Chromafenozide (purity 95%)-5.5 parts by weight

(2) High White 70 (trade name, Nippon Oil Co., Ltd., liquid paraffin)… 79.5 parts by weight

(3) New Calgen 1 103 D (trade name, manufactured by Takemoto Yushi Co., Ltd., polyoxyethylene alkyl ether) 8.0 parts by weight

(4) New Calgen D 9 3 5 (trade name, manufactured by Takemoto Yushi, Sorbitan Monolate) ... 1.0 parts by weight

(5) Homogenol L-95 (trade name, Kao Corporation, imidazoline surfactant) 5.0 parts by weight

The above components were uniformly mixed and wet-milled with a sand grinder mill at 100 rpm for 30 minutes to obtain an oily suspension having an average particle size of 3.5. This product was diluted 1000 times with water, which is a general dilution ratio, and after air-drying, oil droplets were formed around fine crystals that seemed to be chromafenozide. Example 8

(1) Chromafenozide (purity 95%)-5.5 1 part by weight

(2) Thick white sesame oil… 37.5 parts by weight

(3) High White 70 (trade name, Nippon Oil Corporation, liquid paraffin) ••• 37.5 parts by weight

(4) Silicone KF56 (trade name, Shin-Etsu Chemical Co., Ltd., silicone foil)

(5) New Calgen 1 103 D (trade name, manufactured by Takemoto Yushi Co., Ltd., polyoxyethylene alkyl ether) ... 0 parts by weight

(6) New Calgen D 9 3 5 (trade name, manufactured by Takemoto Yushi Co., Ltd., sorbitan monoolate) * 3.0 parts by weight

(7) Homogenol L-95 (trade name, manufactured by Kao Corporation, imidazoline surfactant) 5.0 parts by weight

The above components were uniformly mixed and wet-pulverized with a sand grinder mill at 100 rpm for 30 minutes to obtain an oily suspension preparation having an average particle size of 10 / zm. This product was diluted 1000 times with water, which is a general dilution ratio, and after air-drying, oil droplets were formed around fine crystals considered to be chromaphenozide. Example 9

(1) Chromafenozide (purity 95%)-5.5 fold

(2) Soybean oil ... 64.5 parts by weight (3) New Calgen D—2 1 2 (trade name, manufactured by Takemoto Yushi Co., Ltd., polyoxyethylene castor oil ether)… 7.0 parts by weight

(4) Homogenol L-95 (trade name, manufactured by Kao Corporation, imidazoline surfactant)-3.0 parts by weight

(5) Dimethyl sulfoxide (DMS0)-20.0 parts by weight

(1) was added to (5) and dissolved in a 50 bath, and then the remaining ingredients were added to obtain an emulsion. This product was diluted 1000 times with water, which is a general dilution ratio, and air-dried, and oil droplets were formed. After leaving at room temperature for 1 day, precipitation of crystals thought to be chromaphenozide was observed, and a state in which oil droplets surrounded a fine chromafenozide raw material was observed. Example 1 0

(1) Chromafenozide (purity 95%)-5.5 parts by weight

(2) Castor oil… 80.5 parts by weight

(4) Homogenol L-95 (trade name, Kao Corporation, imidazoline surfactant) 3.0 parts by weight

(5) 1,3-dimethyl-2-imidazolidinone (Ml)-6.0 parts by weight

(1) was added to (5) and dissolved in a 40 ° C water bath, and then the remaining ingredients were added to obtain an emulsion. This product was diluted 1000 times with water, which is a general dilution ratio, and air-dried, and oil droplets were formed. In addition, after leaving at room temperature for one day, precipitation of crystals thought to be chromaphenozide was observed, and fine chromafofenozide precursors were precipitated, and the state in which oil droplets surrounded the fine crystals was observed. Example 11

(1) Chromafenozide (purity 95%)-5.5 parts by weight

(2) Castor oil ... 40.5 parts by weight

(3) Soybean oil: 40.0 parts by weight (4) Newcalgen D—2 1 2 (trade name, manufactured by Takemoto Yushi Co., Ltd., polyoxyethylene castor oil ether)… 10.0 parts by weight

(5) (4) Bionin C-159-ES (trade name, manufactured by Takemoto Yushi Co., Ltd., imidazoline surfactant) 3.0 parts by weight

(6) 1,3-dimethyl-2-imidazolidinone (DMI)-6.0 parts by weight

(1) was added to (6) and dissolved in a 40 ° C water bath, and then the remaining ingredients were added to obtain an emulsion. This product was diluted 1000 times with water, which is a general dilution ratio, and air-dried, and oil droplets were formed. After standing at room temperature for one day, precipitation of crystals thought to be chromaphenozide was observed, and fine chromafenozide precursors were precipitated, and the state in which oil droplets surrounded the fine crystals was observed. Example 1 2

(1) Chromafenozide (purity 95%)-5.5 parts by weight

(2) Newcalgen F S-4 (trade name, manufactured by Takemoto Yushi Co., Ltd., naphthalene polycondensation anionic surfactant) ... 0.28 parts by weight

(3) Anti-Home E—20 (trade name, manufactured by Kao Corporation, silicone)… 0.0 3 parts by weight

(4) Tap water… 19.0 7 parts by weight

(5) Castor oil… 37.0 parts by weight

(6) Newcalgen D—2 1 2 (trade name, manufactured by Takemoto Yushi Co., Ltd., polyoxyethylene castor oil ether)… 5.0 parts by weight

(7) Homogenol L-I 95 (trade name, manufactured by Kao Corporation, imidazoline surfactant) 3.0 parts by weight

(8) Xanthan gum ··· (). 0 5 parts by weight

(9) PROXEL GXL (trade name, manufactured by Zeneca, preservative)… 0 5 parts by weight

(10) Propylene glycol8.0% by weight

(1 1) Tap water… 2 1.9 parts by weight

(1) to (4) were uniformly mixed and wet-pulverized with a sand grinder mill at 1500 rpm for 30 minutes to obtain an oily suspension having an average particle size of 2.5. Ma Separately, (5) to (7) are mixed uniformly, and (8) to (1 1) are also mixed uniformly, and these two liquid mixtures are added to the suspensions (1) to (4). Addition gave an aqueous suspension. This product was diluted 1000 times with water, which is a general dilution factor, and after air-drying, oil droplets were formed around fine crystals that seemed to be chromaphenozide. Example 13

(1) Chromafenozide (purity 95%)-5.5 parts by weight

(2) Castor oil ... 37.5 parts by weight

(3) New Calgen D—2 1 2 (trade name, manufactured by Takemoto Yushi Co., Ltd., polyoxyethylene castor oil ether) 3.5 parts by weight

(4) Homogenol L-95 (trade name, manufactured by Kao Corporation, imidazoline surfactant) "'2.5 parts by weight

(5) Pine flow (trade name, manufactured by Matsutani Chemical, alkenyl succinate esterified starch) ... 50 parts by weight

(1) to (4) were uniformly mixed and wet-pulverized with a sand grinder mill at 1500 rpm for 30 minutes to obtain an oily suspension preparation having an average particle size of 5. The suspension was adsorbed on (5) to obtain an oily suspension solidified preparation. This product was diluted 1000 times with water, which is a general dilution ratio, and air-dried, and oil droplets were formed around fine crystals considered to be chromaphenozide. Example 14

(1) Chromafenozide (purity 95%)-5.5 parts by weight

(2) Castor oil… 29.5 parts by weight

(3) Newcalgen D—2 1 2 (trade name, manufactured by Takemoto Yushi Co., Ltd., polyoxyethylene castor oil ether) 3.0 parts by weight

(4) Homogenol L—95 (trade name, Kao Corporation, imidazoline surfactant) — 2.0 parts by weight

(5) Granulated sugar-60 parts by weight (1) to (4) were uniformly mixed, and wet-pulverized with a sand grinder-mill at 1500 rpm for 30 minutes to obtain an oily suspension preparation having an average particle size of 5 zm. The suspension was adsorbed on (5) to obtain an oily suspension solidified preparation. Further, the solid preparation was encapsulated in a water-soluble polyvinyl alcohol film. This product was diluted 1000 times with water, which is a general dilution ratio, and after air-drying, oil droplets were formed around fine crystals that seemed to be chromaphenodizide. Example 15

(1) Chromafenozide (purity 95%)-5.0 parts by weight

(2) 80 White (trade name, Nippon Oil Co., Ltd., liquid paraffin)… 34.0 2 parts by weight

(3) Nuicalgen 140 (trade name, manufactured by Takemoto Yushi Co., Ltd., alkylbenzene sulfonate, sorbitan fatty acid ester, polyoxyethylene alkyl ether) — 3.18 parts by weight

(4) New Calgen 1 103 D (trade name, manufactured by Takemoto Yushi Co., Ltd., polyoxyethylene alkyl ether) 0.9 1 part by weight

(5) Homogenol L-1 95 (trade name, manufactured by Kao Corporation, imidazoline surfactant)… 2.27 parts by weight

(6) Rikiichi Plex # 80 D (trade name, manufactured by Shionogi & Co., Ltd., hydrous amorphous silicon dioxide) "

(7) Demo Ν (trade name, manufactured by Kao Corporation, sodium salt of / 3-naphthalenesulfonic acid formalin condensate) ... 9.1 parts by weight

(8) Emar 10 powder (trade name, manufactured by Kao Corporation, sodium lauryl sulfate)

(1) to (5) were uniformly mixed and wet-milled with a sand grinder mill at 1500 rpm for 30 minutes to obtain an oily suspension preparation having an average particle size of 5.5. The suspension was adsorbed on the mixture of (6) to (8) to obtain an oily suspension solidified preparation. This product was diluted 1000 times with water in a general dilution ratio, and after air drying, formation of oil droplets around fine crystals considered to be chromaphenozide was confirmed. Example 16

(1) Chromafenozide (purity 95%)-5.5 parts by weight

(2) High White 70 (trade name, Nippon Oil Co., Ltd., liquid paraffin)… 78.5 parts by weight

(3) New Calgen D 9 3 5 (trade name, Takemoto Yushi Co., Sorbitan Monolate)… 1.0 parts by weight

(4) New Calgen 1 103 D (trade name, manufactured by Takemoto Yushi Co., Ltd., polyoxyethylene alkyl ether) — 8.0 parts by weight

(5) Homogenol L-95 (trade name, manufactured by Kao Corporation, imidazoline surfactant) 3.0% by weight

(6) New Esven D (trade name, manufactured by Toyohyun Yokosha, organic bentonite) ••• 3.0 parts by weight

(7) Propylene carbonate: 1.0 parts by weight

In (2), (6) and (7), first, the organic bentonite was swollen with a sand grinder mill, and then (1), (3) and (4) were added, and wet grinding was performed at 1500 rpm for 30 minutes. An oil suspension having a particle size of 3.2 xm was obtained. This product was diluted 1000 times with water in a general dilution ratio, and after air-drying, formation of oil droplets around fine crystals considered to be chromaphenozide was confirmed. Comparative Example 1

(1) Chromafenozide (purity 95%)-5.5 parts by weight

(2) Propylene glycol… 8 8.5 parts by weight

(3) New Calgen CP-15-20 (trade name, manufactured by Takemoto Yushi Co., Ltd., polyoxyalkylenearylphenol) 3.0 parts by weight

(4) Demol N (trade name, manufactured by Kao Corporation, sodium salt of / 3-naphthalenesulfonic acid formalin condensate) ... 3.0 parts by weight

Mix the above components uniformly, and sand grinder mill at 1500 rpm for 30 minutes The wet suspension was pulverized to obtain an oily suspension having an average particle size of 5 zm. This product was diluted 1000 times with water, which is a general dilution ratio, and after air-drying, no oil droplets were formed around fine crystals considered to be chromaphenozide. Comparative Example 2

(1) Chromafenozide (purity 95%)-5.5 parts by weight

(2) Newcalgen P S—P (trade name, manufactured by Takemoto Yushi Co., Ltd., Nafuren condensed anionic surfactant) ... 0 parts by weight

(3) KF-9 6-l O O c p (trade name, Shin-Etsu Chemical Co., Ltd., methyl silicone)

(4) Tap water ... 8 6.90 parts by weight

(5) Xanthan gum ... 0.0 5 parts by weight

(6) Kunipia F (trade name, manufactured by Kunimine Industries, organic bentonite) ... 0.5 parts by weight

(7) PROXEL GXL (trade name, manufactured by Zeneca Corp., preservative) ... 0 5 parts by weight (1) to (7) are uniformly mixed, and wet-pulverized with a sand grinder at 1800 rpm for 50 minutes to obtain an average particle size. 1.0 flowable was obtained. This product was diluted 1000 times with water in a general dilution ratio, and after air-drying, formation of oil droplets around fine crystals considered to be chromafuenozide was not confirmed. The micrograph under the above conditions is shown in FIG. Comparative Example 3

(1) Chromafenozide (purity 95%)

(2) Dimethyl sulfoxide (DMS0)-20.0 parts by weight

(3) Solvesso # 200 (trade name, manufactured by Exxon Co., Ltd., aromatic high-boiling solvent) ... 65.0 parts by weight

(4) New Calgen 1 5 5 LL (trade name, manufactured by Takemoto Yushi Co., Ltd., polyoxygen salt) ... 10.0 parts by weight (1) to (4) were uniformly mixed and dissolved to obtain an emulsion. After dilution and air-drying with water, no oil droplets were found around the fine crystals that were presumed to be chromafenozide. Example 1

(1) Diazinon (purity 95%)… 5.5 parts by weight

(2) Castor oil… 84.5 parts by weight

(3) Newcalgen D—2 1 2 (trade name, manufactured by Takemoto Yushi Co., Ltd., polyoxyethylene castor oil ether) 5.0 parts by weight

(4) Homogenol L-1 95 (trade name, manufactured by Kao Corporation, imidazoline surfactant) 5.0 parts by weight

The above components were uniformly mixed to obtain a 5% diazinon emulsion of the present invention. The drug was diluted to a general dilution factor of 1000 and air-dried. As a result, oil droplets were formed. Example 18

(1) Tebufenozide (purity 9.9%)-5.0 parts by weight

(2) Castor oil… 85.0 parts by weight

(4) Homogenol L_955 (trade name, manufactured by Kao Corporation, imidazoline surfactant) · '· 5.0 parts by weight

(1) was dry-pulverized with a sample mill, placed in the homogeneous mixture of (2) to (4), and stirred to obtain an oily suspension formulation of the present invention having an average particle size of 5 m. The drug was diluted to a general dilution factor of 1000 and air-dried. As a result, oil droplets were formed. Example 19

(1) Carbosulfan (purity 95%)-5.5 parts by weight (2) Castor oil… 84.5 parts by weight

(3) New Calgen D_2 1 2 (trade name, manufactured by Takemoto Yushi Co., Ltd., polyoxyethylene castor oil ether)-5.0 parts by weight

(4) Homogenol L-95 (trade name, manufactured by Kao Corporation, imidazoline surfactant) 5.0 parts by weight

The above components were uniformly mixed to obtain an emulsion of the present invention. The drug was diluted to a standard dilution of 1000-fold and air-dried, and oil droplets were formed. Comparative Example 4

(1) Diazinon (purity 95%)-5.5 parts by weight

(2) Schelsol AB (trade name, Showa Shell Sekiyu KK, aromatic solvent)-79.5 parts by weight

(3) Newcalgen 27 20 S-75 (trade name, Takemoto Yushi Co., Ltd., anionic surfactant)

The above components were uniformly mixed to obtain a pesticide emulsion. The drug was diluted to a general dilution of 1000-fold and air-dried. As a result, no oil droplets were formed. Comparative Example 5

(1) Tebufenozide (purity 9.9%)-5.0 parts by weight

(2) Newcalgen P S-P (trade name, manufactured by Takemoto Yushi Co., Ltd., naphthalene condensed anionic surfactant) ... 0 parts by weight

(3) KF-96-l O O c p (trade name, Shin-Etsu Chemical Co., Ltd., methyl silicone)

(4) Tap water… 8 6. 40 parts by weight

(5) Xanthan gum ... 0.0 5 parts by weight

(6) Kunipia F (trade name, manufactured by Kunimine Industries, organic bentonite) ... 0.

5 parts by weight

(7) PROXEL GXL (trade name, manufactured by Zeneca, preservative) Department

(1) to (7) were uniformly mixed and wet-milled with a sand grinder mill at 1800 rpm for 40 minutes to obtain a flowable agent having an average particle size of 1.0 / xm. The drug was diluted to a general dilution of 1000-fold and air-dried, and no oil droplets were formed. Comparative Example 6

(1) Carbosulfan (purity 95%)-5.5 parts by weight

(3) New Cargen 2 720 S-75 (trade name, Takemoto Yushi Co., Ltd., anionic surfactant)

The above components were uniformly mixed to obtain a pesticide emulsion. The drug was diluted to a general dilution of 1000-fold and air-dried. As a result, no oil droplets were formed. Test example 1

(Basic activity test for sensitive cinnamon and drug-resistant cinnamon) 0.16% by weight and 0.8% by weight of pesticidal active ingredient using a white sample (other components of the test agent excluding pesticide-effective components) %, And then dilute the white sample diluted 1000 times with diluted water obtained by diluting 3000 g of new Gramein (trade name, spreading liquid) to prepare 1.6 ppm and 0.8 ppm water dilutions, respectively. did. Tea leaves are immersed in the diluent, and after air-drying, they have no drug resistance (sensitive susceptibility; hereafter referred to as S-charmaki) and drug-resistant cinnamon (makihara breeding in Shizuoka Prefecture, 3rd generation; The following was released, and the number of dead insects was examined 5 days later. Table 1: Basic activity test results for susceptible and drug-resistant chinamaki Unit: mortality rate%

S Chihama Maki R Chihachi Maki

丄 .6 ppm 0.8 ppm 1.6 ppm 0.8 ppmExample 1 100 100 90 85 Example 2 80 85 80 85 Example 3 100 100 80 85 Example 4 100 100 95 85 Example 5 100 100 95 95 Example 6 100 100 80 80 Example 7 100 100 80 85 Example 8 100 80 85 80 Example 9 100 90 85 85 Example 1 0 100 100 90 85 Example 1 1 100 90 90 85 Example 1 2 100 95 90 90 Example 1 3 100 100 90 90 Example 1 4 100 100 95 90 Comparative Example 1 30 25 5 5 Comparative Example 2 0 0 0 0 Comparative Example 3 15 0 10 0 From the results in Table 1, the pesticide formulation of the present invention is more basic than the Comparative Example. The activity was strong, and the mortality rate of Chihuahamaki was high irrespective of the presence or absence of drug resistance, indicating an excellent control effect on resistant Chihamaki. Test example 2

(Apple pest; residual effect test against Gingmon leaf moth moth: outdoors) Spray liquid of the test chemical diluted to 50 ppm in terms of agrochemical active ingredient is sprayed onto young trees of Tsugaru apples whose cocoon number of Gingmon leaf molyga was surveyed in advance. Use machine 30 days after spraying, the number of cocoons of Gingmon scutellaria was investigated to confirm the residual efficacy of the drug. Table 2: Results of residual efficacy test on Gingmon scutellaria

Cocoons before spraying 30 days after spraying

Example 4 1 2 6

Example 5 5 2

Example 9 1 5 3

Example 10 9 3

Comparative Example 2 1 0 7 8

Comparative Example 3 9 1 5

No treatment 2 6 1 1 4 From Table 2, it was shown that the Examples had longer residual effects than the Comparative Examples. Test example 3

(Basic activity test for drug-resistant Chiyahaki maki)

The reagent is diluted with the other components (white sample) of the test agent excluding the pesticidally effective component, and the white sample dilution is diluted 3000 times with new Gramein (trade name, spreading solution). Diluted 1000-fold. Tea leaves were immersed in the diluent, air-dried, and then drug-resistant cyamaki (Ryakuhamaki, 3rd generation of Makinohara strain bred in Shizuoka Prefecture; hereinafter referred to as R yamahama) was released, and the number of dead insects was examined two days later. Table 3: Basic activity test results for drug-resistant cinnamon

Unit: mortality rate%

a. Diazinon

R Chiyamaki

200ppm 50ppm

Example 1 7 90 50 Comparative Example 4 40 20

Untreated area 0 0 b. Tebufenozide

R Chiyamaki

200ppm 50ppm

Example 1 8 100 100

Comparative Example 5 60 40

Untreated area 0 0 c. Carbosulfan

R

Example 1 9 80 50 40

Comparative Example 6 30 0 0

As shown in Table 3, the pesticide preparation of the present invention had a stronger basal activity than the comparative example, and exhibited a particularly excellent effect in controlling the resistance of Chiahamaki, which had acquired resistance. Test example 4

(Basic activity test against lotus leaf)

The reagent is diluted with a white sample (other components of the test agent excluding the drug-effective component), and the diluted white sample solution is diluted 3000 times with new gramin (trade name, spreading liquid). It was diluted twice. An artificial feed (manufactured by Nippon Nosan Kogyo Co., Ltd.) cut to a thickness of about 5 mm was immersed in the diluted solution for 10 seconds, air-dried, and then 10th-instar larvae of Lotus syrup were placed in a plastic cup together with 10 larvae. Two days after treatment, the number of dead insects was examined. Table 4: Results of basal activity test on eight smut beetle Unit: Insect mortality%

a. Diazinon

Lotus leaf

lOOrmm 50ppm 2θΌϋΐη 12.5ppm Example 1 7 95 65 10 0 Comparative Example 4 60 20 15 0 Untreated section 0 0 0 0 b.

Lotus leaf

50 pm 25 ppm 12.5 ppm 6.3 ppm 3.1 ppm Example 1 9 100 100 85 25 0 Comparative example 6 25 5 5 0 0 Untreated section 0 0 0 0 0 From Table 4, the basic activity of the agricultural chemical formulation of the present invention also against Lotus syrup Height was indicated. Industrial applicability

The pesticide formulation of the present invention has significantly improved basal activity compared to conventional pesticide formulations, and can be expected to have long-term residual effects. Particularly effective against plants / pests that have acquired resistance.

Claims

The scope of the claims

I. A pesticide formulation containing an active pesticide and an oil. When diluted with water to a spray concentration, and the diluted solution is dropped on a slide glass to evaporate water, at least one part of the oil component is oil droplets. A pesticide preparation characterized by forming

2. The agricultural chemical preparation according to claim 1, wherein the agricultural chemical active ingredient is precipitated in the oil droplets.

3. The pesticide formulation according to claim 1, wherein the contact angle of the oil droplet is 20 degrees or more.

4. It contains an amphoteric surfactant, vegetable oil and Z or paraffinic mineral oil. When the other components are diluted with water and sprayed, the oil component does not prevent oil droplet formation on the slide glass. The pesticide preparation according to claim 1 or 2, wherein

5. The pesticide formulation according to claim 4, wherein the vegetable oil has an iodine value of 150 or less.

6. The agrochemical formulation according to claim 4, wherein the amphoteric surfactant is an imidazoline surfactant.

7. The method according to any one of claims 1 to 6, wherein the water solubility of the pesticidal active ingredient is 500 ppm by weight or less (20 ° C) and is solid at normal temperature (20 ° C). A pesticide preparation as described in the above.

8. The pesticide formulation according to any one of claims 1 to 7, wherein the pesticidal active ingredient is a hydrazine pesticide active ingredient.

9. A pesticide characterized in that a pesticide formulation containing the pesticide active ingredient and oil is dripped at 100 \ onto a slide glass to evaporate a diluting solvent, diluted to a concentration at which an oil droplet is formed, and then sprayed. Spray method.

10. A method for spraying pesticides, comprising: applying a pesticide formulation containing an active ingredient and oil to a slide glass, diluting the oil to a concentration at which the oil droplets are formed when water is evaporated, and spraying. .

II. The agricultural chemical according to any one of claims 1 to 10, wherein the pesticidal active ingredient is chromaphenozide, diazinon, debufenozide or carbosulfan. Drug formulation.