JP2007045818A - Agricultural and horticultural acaricidal composition - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a new agricultural and horticultural acaricidal composition having excellent acaricidal effects and usable safely for humans and animals without exerting phytotoxicity on treated plants, to provide a method for using the composition and to provide a method for controlling chemical-resistant acarids. <P>SOLUTION: The agricultural and horticultural acaricidal composition is characterized as comprising an METI (mitochondrial electron transfer inhibitor) and ethiprole ä5-amino-1-[2,6-dichloro-4-(trifluoromethyl)phenyl]-4-(ethylsulfinyl)-1H-pyrazole-3-carbonitrile} as active ingredients. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention comprises an agrochemical composition for agricultural and horticultural use comprising, as an active ingredient, one or more compounds selected from mitochondrial electron transport inhibitors such as fenpyroximate, tebufenpyrad, pyridaben, phenazaquin and pyrimidifene, and etiprol. The present invention relates to a product, a method for using the product, and a method for controlling drug-resistant mites.

  Fenpyroximate (ISO name, chemical name: tert-butyl = 4-({[(1,3-dimethyl-5-phenoxy-4-pyrazolyl) methylidene] aminooxy} methyl) benzoate; tert- butyl 4-({[(1,3-dimethyl-5-phenyl-4-methylol) methylidene] aminooxy} methyl) benzoate, tebufenpyrad (ISO name, chemical name: N- (4-tert-butylbenzyl) -4- Chloro-3-ethyl-1-methylpyrazole-5-carboxamide; N- (4-tert-butylbenzyl) -4-chloro-3-ethyl-1-methylpyrazole-5-carboxamide), pyridaben (ISO name) Chemical name: 2-tert-butyl-5- (4-tert-butylbenzylthio) -4-chloro-3 (2H) -pyridazinone; 2-tert-butyl-5- (4-tert-butylbenzylthio) -4- chloro-3 (2H) -pyrazizine), phenazaquin (ISO name, CAS name: 4- [4- (1,1-dimethylethyl) phenyl] ethoxyquinazoline; 4-[[4- (1,1-dimethylethyl) phenyl) ] Ethyl] quinazoline), pyrimidifene (ISO name, chemical name: 5-chloro-N- {2- [4- (2-ethoxyethyl) -2,3-dimethylphenoxy] ethyl} -6-ethylpyrimidine-4- Amine; 5-chloro-N- {2- [4- (2-ethoxyet] (hyl) -2,3-dimethyl-phenoxy] ethyl} -6-ethylpyrimidin-4-amine) is a known compound and is known to have acaricidal activity and the like (for example, Non-Patent Document 1). These compounds are structurally different, but all have compounds having an action mechanism called mitochondrial electron transfer inhibitors (METI) (see, for example, Non-Patent Document 2) ), And is known to act on mitochondrial respiratory chain complex I.

  As an agricultural and horticultural acaricide composition formed by mixing fenpyroximate and other compounds, a mixed agent obtained by mixing an agricultural and horticultural acaricide and fipronil selected from a large number of drugs including fenpyroximate (for example, It is known that (see Patent Document 1) shows a synergistic effect on drug-resistant spider mites, and a mixture of fenpyroximate and chlorfenapyr (see, for example, Patent Document 2) shows a synergistic effect. However, there is no description of a composition containing a combination of one compound selected from fenpyroximate, tebufenpyrad, pyridaben, phenazaquin, and pyrimidifen of the present invention or a mixture of two or more compounds and ethiprole.

Ethiprole (ISO name, CAS name: 5-amino-1- (2,6-dichloro-4-trifluoromethylphenyl) -4-ethylsulfinyl-1H-pyrazole-) which is an active ingredient used in combination with the acaricide 3-carbonitrile; 5-amino-1- [2,6-dichloro-4- (trifluoromethyl) phenyl] -4- (ethylsulfinyl) -1H-pyrazole-3-carbononitrile) is a known compound, arthropod, It is known to have an pesticidal effect on plant nematodes, protozoan pests, white ants, agricultural pests, animal parasites, etc., and particularly has an insecticidal effect on aphids that are sucking pests and ticks that parasitize animals. (For example, see Patent Document 3) It is a compound that hardly exerts an acaricidal effect on agricultural and horticultural mites. In addition, etiprol is not classified as an acaricide on the Alanwood website (http://www.alanwood.net/pesticides/index.html), which shows the classification of pesticides. Examples of pesticides and the like that can be mixed as a composition are shown in the above-mentioned document (Patent Document 3) where it is described that etiprol has an insecticidal effect, but it is exemplified in this application belonging to mitochondrial electron transport inhibitors. No specific drug names such as fenpyroximate are listed.
As an insecticidal mixed composition containing ethiprol, a mixed composition with indoxacarb having a high insecticidal effect against lepidopters such as diamondback moth, weevil, and lotus moth is known (see, for example, Patent Document 4). There is no description of mixed compositions with acaricides such as mitochondrial electron transport inhibitors.
JP-A-10-324605 JP-A-10-158105 JP 2000-502095 gazette US Pat. No. 6,492,357 The Pesticide Manual Thirteen Edition 2003 (The Pesticide Manual Thirtainent Edition 2003) “Development of Japanese Agricultural Chemicals 1.2 Mitochondrial Electron Transport Inhibitor”, Japanese Pesticide Society, published on January 10, 2003, p. 170-175

  It is important to control spider mites because spider mites that damage fruit trees, sugar beets, tea, other crops, horticultural plants, trees, etc. cause a great deal of damage to the crops and significantly impair the product value. It is controlled by using various agricultural and horticultural acaricides that are effective for various species. However, when the same drug is frequently used, drug resistance is remarkably manifested in ticks. In addition, cross-resistance is recognized among existing agricultural and horticultural acaricides, and it is increasingly difficult to control spider mites.

  In view of the above situation, the present inventor has conducted extensive research on combinations of various insecticides and the like to create a novel agricultural and horticultural acaricide composition. When etiprol, which hardly exhibits an acaricidal effect, is combined with a specific mitochondrial electron transport inhibitor, the acaricidal effect of the mitochondrial electron transport inhibitor is enhanced. It has been found that the effect is remarkably enhanced, and the present invention has been completed. The mitochondrial acaricide composition containing one or more compounds selected from fenpyroximate, tebufenpyrad, pyridaben, phenazaquin, and pyrimidifen, and ethiprole, which are mitochondrial electron transport inhibitors of the present invention, as an active ingredient It has a synergistic effect that cannot be conceived from the effect of using each drug alone against spider mites that have developed sex.

That is, the present invention
[1] Agricultural and horticultural acaricide composition comprising mitochondrial electron transport inhibitor and etiprole as active ingredients,
[2] The mitochondrial acaricide composition according to the above [1], wherein the mitochondrial electron transport inhibitor is one or more compounds selected from fenpyroximate, tebufenpyrad, pyridaben, phenazaquin and pyrimidifene,
[3] Agricultural and horticultural miticides according to [1] or [2], wherein the plant treatment is carried out with an effective amount of the agrochemical and horticultural miticide composition according to [1] or [2]. To use the agent composition,
[4] A method for controlling drug-resistant mites, characterized by plant treatment with an effective amount of the agricultural and horticultural acaricide composition according to [1] or [2],
[5] Contains one or more compounds selected from fenpyroximate, tebufenpyrad, pyridaben, phenazaquin and pyrimidifen and etiprole, and contains a sufficient amount of the above compound and etiprol to produce a synergistic effect with the compound and etiprol. A method for controlling drug-resistant mites characterized by treating a plant with a diluted solution,
[6] Two types of dilutions in which a composition containing one or more compounds selected from fenpyroximate, tebufenpyrad, pyridaben, phenazaquin, and pyrimidifen as an active ingredient and a composition containing etiprol as an active ingredient are diluted. A method of controlling drug-resistant mites characterized by simultaneous plant treatment with a liquid, and [7] use of etiprole for enhancing mitochondrial action for agricultural and horticultural use of mitochondrial electron transport inhibitors,
About.

The agrochemical composition for agricultural and horticultural use according to the present invention has a synergistic effect that cannot be conceived from the effect of using each drug alone, for example for mites for agricultural and horticultural use such as spider mites. A large amount of drugs are used to control fruit trees, sugar beets, tea, other crops, horticultural plants or trees such as spider mites, especially agricultural and horticultural mites, especially drug resistant mites. Without introduction, mites for agriculture and horticulture such as spider mites, especially drug-resistant mites can be controlled, so that the plant can be grown up and the productivity of the plant can be increased.
Moreover, the acaricide composition for agricultural and horticultural use of the present invention does not cause any phytotoxicity to the treated plant and can be used safely for human livestock.

  The agricultural and horticultural acaricide of the present invention may be used in combination with a mitochondrial electron transport inhibitor, which is the first active ingredient compound, and etiprol, which is the second active ingredient compound. As the mitochondrial electron transport inhibitor, fenpyroximate is preferable. The addition amount of each active ingredient compound in the agrochemical composition for agricultural and horticultural use of the present invention may be appropriately selected from the range of about 0.1 to 50 parts by mass, preferably about 1 to 20 parts by mass, respectively. What is necessary is just to select and use from the range of a part. Moreover, the addition ratio of ethiprol to the mitochondrial electron transport inhibitor in the agrochemical composition for agricultural and horticultural use of the present invention is in the range of about 0.05 to 20 parts by mass of ethiprol per 1 part by mass of the mitochondrial electron transport system inhibitor. May be appropriately selected from the above, and preferably selected from the range of about 0.1 to 10 parts by mass of Ethiprole.

  When using the agrochemical composition for agricultural and horticultural use according to the present invention, the above active ingredients are mixed in an appropriate ratio and dissolved together with an appropriate inert carrier and, if necessary, auxiliary agents in accordance with conventional methods for agricultural chemical formulations. , Suspended, pulverized, mixed, kneaded, impregnated, adsorbed or adhered, etc., depending on the intended use, such as emulsion, milk suspension, powder, granule, wettable powder, flowable, granule What is necessary is just to prepare and use for a wettable powder, a tablet, a jumbo agent, or a pack agent.

  The inert carrier that can be used in the present invention may be either solid or liquid. Examples of materials that can be used as a solid carrier include soybean flour, cereal flour, wood flour, bark flour, saw flour, and tobacco stem flour. , Walnut shell powder, bran, fiber powder, residues after extraction of plant extracts, synthetic polymers such as ground synthetic resin, clays (eg kaolin, bentonite, acid clay), talc (eg talc, pyrophyllite) Etc.), silicas {eg, diatomaceous earth, silica sand, mica, white carbon (some synthetic high-dispersion silicic acid, also called hydrous finely divided silicon, hydrous silicic acid, and some products contain calcium silicate as a main component)}, activated carbon, sulfur powder , Pumice, calcined diatomaceous earth, brick ground, fly ash, sand, inorganic mineral powder such as sodium sulfate or magnesium carbonate, polyethylene, polypropylene Or a plastic carrier such as ammonium sulfate or polyvinylidene chloride, a chemical fertilizer such as ammonium sulfate, phosphoric acid, ammonium nitrate, urea or ammonium sulfate, or compost, etc., which are used alone or in the form of a mixture of two or more. The

  The material that can be used as a liquid carrier is selected from those having solvent ability itself and those capable of dispersing the active ingredient compound with the aid of an auxiliary agent without having solvent ability. The following carriers can be exemplified, but these are used alone or in the form of a mixture of two or more, for example, water, alcohols (for example, methanol, ethanol, isopropanol, butanol, cyclohexanol, ethylene glycol, diethylene glycol, propylene glycol) Hexylene glycol, polyethylene glycol, polypropylene glycol, etc.), ketones (eg acetone, methyl ethyl ketone, methyl isobutyl ketone, diisobutyl ketone, cyclohexanone, γ-butyrolactone, etc.), ethers (eg ethyl ether) , Dioxane, cellosolve, dipropyl ether, tetrahydrofuran, etc.), aliphatic hydrocarbons (eg kerosene, mineral oil, etc.), aromatic hydrocarbons (eg benzene, toluene, xylene, solvent naphtha, alkylnaphthalene, etc.), halogenated carbonization Hydrogen (for example, dichloroethane, chloroform, carbon tetrachloride, chlorinated benzene, etc.), esters (for example, ethyl acetate, diisopropyl phthalate, dibutyl phthalate, dioctyl phthalate, etc.), amides (for example, dimethylformamide, diethylformamide, dimethylacetamide) Etc.), nitriles (eg acetonitrile), dimethyl sulfoxides, nitrogen-containing carriers (N-alkylpyrrolidone etc.), or fats and oils (eg rapeseed oil, soybean oil, olive oil, corn oil, coconut oil, castor oil, etc.) And the like.

As other adjuvants, typical adjuvants exemplified below can be mentioned, and these adjuvants are used depending on the purpose, and singly, in some cases, two or more kinds of adjuvants are used together. In some cases it is possible to use no adjuvants at all.
Surfactants are used for the purpose of emulsifying, solubilizing and / or wetting the active ingredient compound, for example, polyoxyethylene alkyl ether, polyoxyethylene alkyl aryl ether, polyoxyethylene higher fatty acid ester, polyoxyethylene resin acid. Ester, polyoxyethylene sorbitan monolaurate, polyoxyethylene sorbitan monooleate, polyoxyethylene styryl phenyl ether, dioctyl sodium sulfosuccinate (dioctyl sulfosuccinate soda), alkylaryl sulfonate, naphthalene sulfonic acid condensate [for example , Β-Naphthalenesulfonic acid formalin condensate sodium salt; Demol T (Kao Atlas Co., Ltd.)], lignin sulfonate or higher alcohol sulfate, etc. It can be exemplified.
Further, for the purpose of stabilizing the dispersion, sticking and / or binding of the active ingredient compound, the following exemplified adjuvants can be used, such as casein, gelatin, starch, methylcellulose, carboxymethylcellulose, xanthan gum, gum arabic. Adjuvants such as polyvinyl alcohol, pine oil, coconut oil, bentonite or lignin sulfonate can be used.

Further, the following auxiliary agents can be used for improving the flowability of the solid product, and auxiliary agents such as waxes, stearates or alkyl phosphates can be used. As a peptizer for a suspension product, for example, an auxiliary such as naphthalenesulfonic acid condensate or condensed phosphate can be used.
As the antifoaming agent, for example, an auxiliary agent such as silicone oil can be used.
As a preservative, sodium benzoate, potassium sorbate, 1,2-benzisothiazolin-3-one (trade name: Proxel GXL), parachlorometaxylenol or butyl paraoxybenzoate can be added.
Furthermore, as required, activity enhancers such as functional spreaders such as terpenes, polyamide resins or higher fatty acid esters of polyoxyethylene / polyoxypropylene, metabolic degradation inhibitors such as piperonyl butoxide, ethylene glycol, diethylene glycol , Antifreezing agents such as glycerin or propylene glycol, antioxidants such as butylhydroxytoluene (BHT) or butylhydroxyanisole (BHA), hydroquinone ultraviolet absorbers, salicylic acid ultraviolet absorbers, benzophenone ultraviolet absorbers, benzotriazole An ultraviolet absorber such as a UV absorber or a cyanoacrylate UV absorber, or other auxiliary agents such as a drift inhibitor such as methylcellulose, polyvinyl alcohol, or sodium polyacrylate can be added.

  The agrochemical composition for agricultural and horticultural use according to the present invention is not limited to other insecticides for agricultural or horticultural use as long as it is stable in the preparation for the purpose of controlling pests to be controlled, expansion of the control period, or for the purpose of reducing the dosage. Can be mixed with acaricides for agricultural and horticultural use, nematicides, bactericides, biological pesticides, etc., and mixed with herbicides, plant growth regulators, fertilizers, etc. Is possible.

  The agrochemical composition for agricultural and horticultural use of the present invention can be used for the control of various agricultural and horticultural mites. urticae Koch), Kanzawa spider mite (Tetranychus kanzawai Kishida), carmine spider mite (Tetranychus cinnabarinus), cherry spider mites (Tetranychus viennensis Zacher), southern Anthrenus mite (Brevipalpus phoenicis) or grape Hime spider mites such as spider mites (Brevipalpus lewisi), Chanosabidani (Calacarus carina (us), radish mites (Aculops pelekassi), pistol mite (Epiophylerus pyri) or mite mite (Eriophytes chibaensis), mite mite (Polyphagostenus genus) In particular, it exhibits an excellent synergistic effect against drug-resistant Kanzawa spider mites.

Useful plants that can use the agricultural and horticultural acaricide composition of the present invention are not particularly limited, and examples thereof include cereals (eg, rice, barley, wheat, rye, oats, corn, etc.), beans (soybean, Red beans, broad beans, green beans, green beans, peanuts, etc.), fruit trees and fruits (apples, citrus, pears, strawberries, peaches, plums, cherry peaches, walnuts, chestnuts, almonds, bananas, strawberries, etc.), leaves and fruits and vegetables (Cabbage, tomato, spinach, broccoli, lettuce, onion, leek, pepper, eggplant, pepper, etc.), root vegetables (carrot, potato, sweet potato, taro, radish, lotus root, turnip, burdock, garlic, etc.), crop for processing ( Salmon, hemp, beet, hop, sugar cane, sugar beet, olive, rubber, coffee, tobacco, tea, etc.), cucumbers (pumpkin, cucumber, cucumber, watermelon, melon, etc.) , Pastures (orchard grass, sorghum, timothy, clover, alfalfa, etc.), turf (Korean turf, bentgrass, etc.), fragrance crops (lavender, rosemary, thyme, parsley, pepper, ginger, etc.), flowers Examples include plants such as chrysanthemums, roses, carnations, orchids, garden trees (ginkgo biloba, cherry blossoms, aoki), or forest trees (such as pine pine, spruce pine, pine, hiba, cedar, cocoon, etc.).
The useful plant may be one that produces an insecticidal active ingredient during the growth process by genetic recombination or the like. Examples of the insecticidal active ingredient include Bt (Bacillus thuringiensis; soil bacteria) toxin.

  When using the agrochemical composition for agricultural and horticultural use of the present invention, the composition in the form of the preparation according to the purpose may be used as it is or diluted with water or the like. Depending on the weather conditions, formulation form, application time, application method, application location, pests to be controlled or target crops, etc., the total of two active ingredients is usually about 1 to 200 g per 10 are as active ingredient compounds. And preferably in the range of about 10 to 100 g.

  The agrochemical composition for agricultural and horticultural use according to the present invention is a vegetation inhabited by mites for agricultural and horticultural use, particularly stems, leaves, seeds, bulbs or seed pods (hereinafter, seeds, bulbs or seed potatoes are simply abbreviated as seeds). .) Or can be applied to fruits and the like. Application methods include, for example, spraying or spraying on leaf surfaces or stems, seed treatment (for example, soaking seeds or seed dressing of granules, etc.), soil application (for example, spraying of granules or spraying of furrows, etc.), etc. Is mentioned.

  In the treatment of seeds, it can be used in a range of about 0.01 to 50 parts by mass as a total of two active ingredients with respect to 100 parts by mass of seeds, preferably about It is the range of 0.1-10 mass parts. When diluting an emulsion or wettable powder with water, etc., the application concentration is about 0.00001 to 0.1% by mass as the total of the two active ingredients, and it is processed into granules, powders or seeds. What is necessary is just to apply the liquid agent etc. in that case, without diluting normally.

  In the case of soil application, the agricultural and horticultural acaricide composition of the present invention is usually sprayed on the soil in the entire field or crop cultivation area to be treated, sprayed with water, or left to natural rainfall action, etc. Can diffuse the active ingredient in the soil. In addition, it may be applied by spraying or spraying on the soil in the planting hole such as seeds or seedlings, and may further be applied by spraying, spraying or injecting on the soil very close to the plant. The period of soil application may be before seeding, seedling or the like, during or after planting and before or after germination.

  The present invention also relates to a method for controlling drug-resistant mites by using a combination of a mitochondrial electron transport inhibitor such as fenpyroximate, tebufenpyrad, pyridaben, phenazaquin or pyrimidifen with ethiprole. The combined use of a mitochondrial electron transfer inhibitor and ethiprole is a form in which the composition of the present invention containing a mitochondrial electron transfer inhibitor and ethiprol is applied to the vegetation inhabited by drug-resistant mites to be controlled, for example. It may be. In addition, the combination is prepared by mixing a composition containing an inhibitor of mitochondrial electron transport as an active ingredient and a composition containing etiprol as an active ingredient so that the ratio is the same as that of the composition of the present invention at the time of application. The application mixture may be prepared and applied by, for example, a composition containing a mitochondrial electron transport inhibitor as an active ingredient and a composition containing etiprol as an active ingredient, each at an arbitrary concentration. It may be in the form of being prepared and applied separately at the same time. In this case, the mitochondrial electron transport inhibitor and ethiprole are preferably prepared in the same amount as that of the present invention.

  In the present specification, the term “control” means, for example, killing of agricultural and horticultural mites, prevention of growth, suppression, avoidance or prevention, and protection of plants from damage by agricultural and horticultural mites. .

  The present invention also relates to the use of ethiprole for enhancing the mitochondrial action for agricultural and horticultural use of mitochondrial electron transport inhibitors. That is, the use of ethiprole enhances the mitochondrial effect of mitochondrial electron transport inhibitors on agricultural and horticultural mites, so that mitochondrial electron transport inhibitors are used at low concentrations, for example, conventional mitochondrial electron transport inhibitors. Drug resistance that can exert acaricidal effect even if it is less than or equal to an acaricidal effective amount against mites, and that can acquire drug resistance against mitochondrial electron transport inhibitors, and that can not exert its effect with normal acaricidal effective amount It can also exert an acaricidal action against sex mites. Preferred examples of the mitochondrial electron transfer inhibitor include fenpyroximate, tebufenpyrad, pyridaben, phenazaquin, and pyrimidifen. Ethiprol can enhance the mitochondrial action for agricultural and horticultural use of the mitochondrial electron transport inhibitor in the same amount used as the ratio of ethiprol to the mitochondrial electron transport inhibitor in the agricultural and horticultural acaricidal composition of the present invention described above.

  In order to carry out the method for controlling drug-resistant mites in the present invention, mitochondrial electron transport inhibitors such as fenpyroximate, tebufenpyrad, pyridaben, phenazaquin or pyrimidifen and etiprol are packaged in the same package, and the mitochondrial electron transport inhibitor It can also be used as an agro-horticultural miticide kit, especially a drug-resistant mite-control kit for mixing ethiprol with ethiprol.

The agricultural and horticultural acaricide composition or the method for controlling drug-resistant mites of the present invention can be applied to animals, particularly warm-blooded vertebrates such as human bodies or livestock, for example, in the field of veterinary medicine or livestock industry or in the field of maintaining public health. For example, it can be used against ticks that parasitize cattle, sheep, goats, horses, pigs, chickens, dogs or cats. Examples of the mites include ticks (for example, Ixodes species (ticks), Boophilus species (for example Boophilus microplus), Amblyomma species, Hyalomma species (Tick tick), Rhipicephalus species (for example, Rhipicaephalus species, for example, Rhipicaephalus species) Species, Ornithodorus species (e.g. Ornithodorus moubata) and other ticks (e.g. Damalinia species (Dermahyssus gallinae), Sarcoptes species (Nispidae), o, ds, e.e., Sarcotes scabiet species, e. ultrabicula species) and the like.
Tick control in animals can be carried out, for example, by oral administration or spraying on animals.

  The present invention is illustrated below by examples, test examples, etc., but the present invention is not limited thereto.

Fenpyroximate 10 parts by weight Ethiprole 5 parts by weight Hydrous silicic acid 30 parts by weight Hytenol N08 (Daiichi Kogyo Seiyaku Co., Ltd.) 5 parts by weight Lignin sulfonate 3 parts by weight Clay for wettable powder 47 parts by weight Hydrous silicic acid And impregnated with the other components to make a wettable powder.

Fenpyroximate 10 parts by mass Ethiprole 10 parts by mass NPE-100 (manufactured by Daiichi Kogyo Seiyaku Co., Ltd.) 20 parts by mass Propylene glycol 5 parts by mass Load pole 23 (manufactured by Rhone-Poulenc) 2 parts by mass Water 43 parts by mass Mix evenly and disperse in water to make a flowable agent.

Pyridaben 20 parts by mass Ethiprole 10 parts by mass Hydrous silicic acid 20 parts by mass SP-3005X (manufactured by Toho Chemical Co., Ltd.) 30 parts by mass Demol T (manufactured by Kao Atlas Co., Ltd.) 10 parts by mass Xylene 10 parts by mass Uniformly mixed and dissolved To make an emulsion.

Pyrimidifen 10 parts by mass Ethiprole 5 parts by weight Hydrous silicic acid 30 parts by weight Hytenol N08 (Daiichi Kogyo Seiyaku Co., Ltd.) 5 parts by weight lignin sulfonate 3 parts by weight Clay for wettable powder 47 parts by weight Hydrous silicic acid And impregnated with the other components to make a wettable powder.

Dioctylsulfosuccinate soda 1 part by mass Polyoxyethylene styryl phenyl ether 2 parts by mass Propylene glycol 10 parts by mass Silicone KM-73 (manufactured by Shin-Etsu Chemical Co., Ltd.) 0.5 part by mass Proxel GXL (1,2-benzisothiazoline-3- on)
Add 0.17.7 parts by weight of water 77.7 parts by weight, mix and dissolve with a stirrer (Homomixer, manufactured by Tokushu Kika Kogyo Co., Ltd.)
Next, 5 parts by mass of Tebufenpyrad and 2.5 parts by mass of Ethiprole are added and finely pulverized by a wet pulverizer (Dynomill KDL type, manufactured by Bakkofen). Xanthan gum 0.2 parts by mass Purified bentonite 1.0 part by mass is added to the pulverized product and mixed uniformly to obtain a milk suspended pesticide composition.

[Test Example 1]
Insecticidal test against drug-resistant spider mite, 8cm diameter plastic cup is filled with water, covered with a 1cm diameter hole, and a filter paper with a notch that can be suspended from the hole in the lid is placed on the top of the lid. Then, the cut portion of the filter paper was suspended in the water from the hole of the lid so that the filter paper was always wet by capillary action. A leaf disk having a diameter of 2 cm was made from fresh leaves of green beans (variety: top crop). After inoculating 10 female worms of drug-resistant Kanzawa spider mite on the leaf disc, the leaf disc was placed on the filter paper, and the chemicals prepared so as to have the active ingredient concentrations shown in Table 1 were uniformly sprayed. . The leaf disc placed on the filter paper after spraying the chemical solution was left in a constant temperature room at 25 ° C. Two days later, the number of surviving insects was examined, and the death rate was calculated (two consecutive systems).
The results are shown in Table 1.
Neither fenpyroximate, tebufenpyrad, pyridaben, phenazaquin or pyrimidifene alone gave 100% mortality against drug-resistant Kanzawa spider mites. Moreover, the drug-resistant Kanzawa spider mite death rate by spraying of Ethiprol 25 ppm was 0%, and Etiprol did not show an acaricidal action against the drug-resistant Spider spider mite. However, the combination of fenpyroximate, tebufenpyrad, pyridaben, phenazaquin or pyrimidifen with 25 ppm of ethiprole resulted in 100% drug-resistant Kanzawa spider mite mortality and significantly increased the acaricidal action of fenpyroximate, tebufenpyrad, pyridaben, phenazaquin or pyrimidifen. I understood that. This is due to the synergistic effect of fenpyroximate, tebufenpyrad, pyridaben, phenazaquin or pyrimidifen and ethiprole.

[Test Example 2]
Insecticidal activity test against tomato parasitoids of tomato parasitic Filter paper with a plastic cup with a diameter of 8 cm filled with water, a lid with a hole with a diameter of 1 cm, and a notch that can be suspended from the hole of the lid at the top of the lid The filter paper was suspended in the water from the hole in the lid, and the filter paper was constantly moistened by capillary action. A leaf disk having a diameter of 2 cm was made from primary leaves of tomato (variety: Ponterosa). A chemical solution prepared by inoculating 10 female adults of tomato rust mite (Kawauchi Nagano-derived insects) on the leaf disk, placing the leaf disk on the filter paper, and preparing the drugs in Table 2 to the active ingredient concentrations in Table 2 (Addition of 0.01% by weight of Myrino) was sprayed uniformly with a spray gun. After spraying the chemical solution, the leaf disc placed on the filter paper on which the chemical solution was air-dried was allowed to stand in a thermostatic chamber (16 hours light period, 8 hours dark period) at 25 ° C. After 2, 6 and 9 days, the number of normal parasites was investigated, the corrected mortality rate was calculated, and the insecticidal effect was evaluated by the following ranking (two consecutive systems).
Reagents: fenpyroximate 5SC, ethiprole 10SC.
The results are shown in Table 2. SC indicates a flowable.

Judgment criteria: A ... Death rate 100%
B ... 99% to 90% death rate
C ... Death rate 89% -80%
D ... Death rate 79% -50%
E ... Death rate less than 50%

Test results:

  The insecticidal activity of fenpyroximate SC and ethiprole SC against tomato parasitic tomato rust mites was examined. As a result, it was confirmed that the combination of fenpyroximate and etiprole improved the activity by 2 to 4 times in both quick action and insecticidal activity compared to the case of single use.

[Test Example 3]
Insecticidal activity test against cucumber parasite mite dust: Fill a plastic cup with a diameter of 8 cm, cover with a hole with a diameter of 1 cm, and filter paper with a notch that can be suspended from the hole in the top of the lid. The filter paper was suspended in the water from the hole in the lid, and the filter paper was constantly moistened by capillary action. A leaf disk having a diameter of 2 cm was made from fresh leaves of green beans (variety: top crop). A chemical solution prepared by inoculating 10 female adult ticks (naturally occurring insects derived from Kawachinagano) on the leaf disc, placing the leaf disc on the filter paper, and adjusting the concentrations of the active ingredients in Table 3 to those shown in Table 3. (Addition of 0.01% by weight of Myrino) was sprayed uniformly with a spray gun. The leaf disc placed on the filter paper after the chemical solution was sprayed was allowed to stand in a thermostatic chamber (16 hours light period, 8 hours dark period) at 25 ° C. After 1, 2, 4, and 7 days, the number of normal parasites was examined, and the corrected mortality was calculated and evaluated in the same manner as in Test Example 2 (no continuous control).
Reagents: Fenpyroximate 5SC, Ethiprole 10SC.
The results are shown in Table 3.

Test results:

  The effect of fenpyroximate SC and ethiprole SC on the dust mite was examined. As a result, it was confirmed that fenpyroximate and etiprole improved both rapid action and insecticidal activity compared to single use.

[Test Example 4]
Test of insecticidal activity against rice-parasitic leafhopper larvae in rice (variety: Kinnankaze) leaf solution, with the chemicals in Table 4 adjusted to the active ingredient concentrations in Table 4 (addition of 0.01% by weight of mylino) The immersion treatment was performed for 20 seconds. The leaf-tree that had been treated with the chemical solution was air-dried and then placed in a glass test tube with a diameter of 16 mm containing 2 mL of water, and 5 leafhoppers (second-instar larvae) were inoculated in each group. After the inoculation, the test tube was covered with Japanese paper and allowed to stand in a temperature-controlled room (16 hours light period, 8 hours dark period) at 25 ° C. After 1, 3, and 7 days, the number of normal parasites was examined, and the corrected mortality rate was calculated in the same manner as in Test Example 2 (two consecutive systems).
Reagents: Fenpyroximate 5SC, Ethiprole 10SC.
The results are shown in Table 4.

Test results:

We investigated the synergistic action of insecticidal effect on the leafhopper by mixing fenpyroximate with ethiprole. As a result, it was confirmed that the insecticidal activity against leafhopper was improved by the combined use of fenpyroximate and etiprole. In addition, the degree of activity improvement increased slightly later.

Claims (7)

  An agrochemical composition for agricultural and horticultural use comprising a mitochondrial electron transport inhibitor and ethiprole as active ingredients.   The mitochondrial electron transfer inhibitor is one or more compounds selected from fenpyroximate, tebufenpyrad, pyridaben, phenazaquin, and pyrimidifene.   3. A method for using the acaricide composition for agricultural and horticultural use according to claim 1 or 2, wherein the plant treatment is carried out with an effective amount of the acaricide composition for agricultural or horticultural use according to claim 1 or 2.   A method for controlling drug-resistant mites, comprising treating the plant with an effective amount of the agrochemical composition for agricultural and horticultural use according to claim 1 or 2.   A dilution containing one or more compounds selected from fenpyroximate, tebufenpyrad, pyridaben, phenazaquin and pyrimidifene and etiprol, and a sufficient amount of said compound and etiprol to produce a synergistic effect with said compound and etiprol A method for controlling drug-resistant mites characterized by treating a plant with a liquid.   The same composition is used for two types of dilutions, each of which contains a composition containing one or more compounds selected from fenpyroximate, tebufenpyrad, pyridaben, phenazaquin, and pyrimidifen as an active ingredient, and a composition containing etiprol as an active ingredient. A method for controlling drug-resistant mites characterized by plant treatment at a time. Use of ethiprole to enhance mitochondrial action for agricultural and horticultural use of mitochondrial electron transport inhibitors.