JP2005350360A - Control agent of insect harmful to vegetable and of vegetable disease - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a control agent of insects harmful to vegetables and of vegetable diseases, which exhibits good dispersibility in water without using a surfactant (provided that glyceride surfactants are excluded), sticks well to vegetables or pathogenic or harmful insects living therein, and therefore exhibits excellent controlling effects on pathogens or harmful insects to vegetables. <P>SOLUTION: This control agent of insects harmful to vegetable and of vegetable diseases comprises an agrochemical active ingredient, a polyglycerol fatty acid ester and a vegetable oil. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a composition for controlling plant pests and diseases, and more particularly to a plant pest and disease control agent using polyglycerin fatty acid ester and vegetable oil as auxiliary agents.

  Conventionally, various control compositions have been used for controlling ticks such as spider mites and pests such as aphids. For example, Japanese Patent Application Laid-Open No. 55-57506 discloses a control composition in which a sorbitan fatty acid ester or its ethylene oxide adduct and a water-soluble polymer compound are combined. In addition, the sustainability of the effect is not sufficient. Moreover, since these mites and pests generally easily acquire resistance to drugs, the insecticidal and acaricidal effects of these drugs are gradually lost.

  Japanese Patent Application Laid-Open No. 2003-286102 discloses a pest control pharmaceutical composition containing a stock solution prepared by dissolving a hardly soluble insecticidal component with a vegetable oil and a polyglycerin fatty acid ester. However, the composition is intended to control house insects such as cockroaches and ants.

  In addition, the present inventors have reported an insecticidal composition containing a specific fatty acid ester and a nonionic surfactant (Japanese Patent Laid-Open No. 10-251104).

  In addition, an efficacy enhancer for agricultural chemicals containing a specific polyglycerin and / or polyglycerin derivative and a nonionic surfactant as essential components is known (Japanese Patent Laid-Open No. 5-345702).

JP-A-55-57506 JP-A-10-251104 JP 2003-286102 A JP-A-5-345702

  The present invention has good dispersibility in water without using a surfactant (excluding polyglycerol fatty acid ester surfactants), and adheres well to plants or pathogenic bacteria or pests that inhabit them. It is an object of the present invention to provide a plant pest and a disease control agent having a high effect of controlling plant pathogens and pests.

  As a result of intensive studies, the present inventors use polyglycerin fatty acid ester and vegetable oil as auxiliaries, and combine them with an agrochemical active ingredient to enhance the efficacy of an agrochemical active ingredient such as a plant pathogen or pest control effect. As a result, the present invention has been completed.

That is, the present invention includes the following inventions.
(1) Plant pests and disease control agents containing active ingredients of agricultural chemicals and polyglycerin fatty acid esters and vegetable oils as auxiliaries.
(2) Polyglycerol fatty acid ester is diglycerol monooleate, diglycerol monolaurate, diglycerol oleate, diglycerol laurate, tetraglycerol oleate, hexaglycerol laurate, hexaglycerol oleate, decaglycerol laurate and decaglycerol oleate The control agent according to (1), selected from the group consisting of:
(3) The vegetable oil is selected from the group consisting of soybean oil, rapeseed oil, sunflower oil, corn oil, olive oil, palm oil, palm kernel oil, coconut oil and castor oil, as described in (1) or (2) above Control agent.
(4) A medicinal effect enhancer for agricultural chemicals containing polyglycerin fatty acid ester and vegetable oil.
(5) The enhancer according to (4), wherein the pesticide is for controlling plant pests and diseases.

  The polyglycerin fatty acid ester and vegetable oil used as auxiliaries in the present invention remarkably enhance the medicinal efficacy of agricultural chemicals. In addition, according to the present invention, a plant pest having good dispersibility without using a surfactant, and effectively adhering to plant pests and pathogens, and having an excellent pest or pathogen control effect even at low concentrations, A disease control agent is provided.

Hereinafter, the control agent of the present invention will be described in detail.
The plant pest and disease control agent of the present invention contains an agrochemical active ingredient, and a polyglycerol fatty acid ester and vegetable oil as auxiliary agents.

  The active ingredient for agricultural chemicals used in the present invention is not particularly limited, and examples thereof include those having an action of controlling plant pests or diseases.

  Specific examples of the agricultural chemical active ingredient include, for example, calcium chloride, magnesium chloride, ammonium salt (for example, ammonium chloride), carbonate and bicarbonate (for example, potassium bicarbonate, sodium bicarbonate), phosphate (for example, Inorganic salts such as tripotassium phosphate, trisodium phosphate, monoammonium phosphate), pyrophosphates (for example, potassium pyrophosphate and sodium pyrophosphate), and organic salts such as carboxylates (for example, calcium lactate) It is done.

In addition to the above, examples of active agricultural chemicals include organic agricultural chemicals, such as pyrethroid compounds, carbamate compounds, organic phosphorus compounds, amidinohydrazone compounds, pyrazole compounds, and silaneophane compounds. Examples include thiophanate methyl, benomyl, TPN, quinoxaline, iprodione, phenbutasine oxide, bifenthrin, buprofezin, mannebu and microbutanyl.
The above agricultural chemical active ingredients may be used alone or in combination of two or more.

The polyglycerin fatty acid ester used in the present invention refers to those containing 2 to 20 glycerin units in the molecule, and a part of the hydroxyl groups forming an ester with fatty acid. Examples of such polyglycerol fatty acid esters include esters of diglycerol, triglycerol, tetraglycerol, hexaglycerol, or decaglycerol and oleic acid, stearic acid, isostearic acid, lauric acid, or palmitic acid. Specific examples thereof include tetraglycerin monooleate, tetraglycerin monostearate, tetraglycerin monolaurate, tetraglycerin tristearate, tetraglycerin pentastearate, tetraglycerin pentaoleate, hexaglycerin monooleate, hexaglycerin monostearate. , Hexaglycerol monolaurate, hexaglycerol tristearate, hexaglycerol pentastearate, hexaglycerol pentaoleate, decaglycerol monooleate, decaglycerol monostearate, decaglycerol monoisostearate, decaglycerol monolaurate, decaglycerol Diolate, decaglycerin distearate, decaglycerin diisostearate, decaglycerin dilaurate, decagu Serine tristearate, decaglycerin triolate, decaglycerin triisostearate, decaglycerin pentastearate, decaglycerin pentaoleate, decaglycerin pentaisostearate, decaglycerin hepta stearate, decaglycerin heptaoleate, decaglycerin heptaiso Stearates and the like, and the following polyglycerol fatty acid esters are particularly preferred:
Diglycerin monooleate (Product name: DO-100), Diglycerin monolaurate (Product name: DL-100), Diglycerin oleate (Product name: O-71-D), Diglycerin laurate (Product name: L) -71-D), tetraglycerin oleate (trade name: J-4581), hexaglycerin laurate (trade name: J-6021), hexaglycerin oleate (trade name: J-6481), decaglycerin laurate (trade name) : J-0021) and decaglycerin oleate (trade name: J-0381).

  The above polyglycerol fatty acid esters can be used alone or in combination of two or more.

  Examples of the vegetable oil that can be used in the present invention include soybean oil, rapeseed oil, sunflower oil, corn oil, olive oil, palm oil, palm kernel oil, palm oil, castor oil, peanut oil, sesame oil, linseed oil, and camellia oil. Cottonseed oil, safflower oil and the like.

  In the control agent of the present invention, the mixing ratio of the agricultural chemical active ingredient, the polyglycerol fatty acid ester and the vegetable oil is, for example, 5 to 95 parts by weight (preferably 60 to 90 parts by weight) of the agricultural chemical active ingredient, and 1 of the polyglycerol fatty acid ester. -25 parts by weight (preferably 5-20 parts by weight) and 1-30 parts by weight (preferably 5-25 parts by weight) of vegetable oil.

  As long as the effect of the control agent of the present invention is not hindered, the control agent of the present invention is added with known auxiliary agents / additives commonly used in agricultural chemical compositions in addition to the above components as necessary. May be. Such adjuvants / additives include, for example, carriers, surfactants, antioxidants, dispersants, preservatives, synergists, emulsifiers, suspending agents, spreading agents, wetting agents, penetrating agents, Examples include mucilizer, stabilizer, fixing agent, adsorbent and the like.

  As the carrier, either a liquid carrier or a solid carrier can be used. Examples of the liquid carrier (solvent) include water, alcohols (methyl alcohol, ethyl alcohol, n-propyl alcohol, isopropyl alcohol, ethylene glycol, etc.), ethers (dioxane, tetrahydrofuran, ethylene glycol monomethyl ether, diethylene glycol monomethyl ether, (Flopyrene glycol monomethyl ether, etc.), ketones (acetone, methyl ethyl ketone, etc.), aliphatic hydrocarbons (kerosene, kerosene, fuel oil, machine oil, etc.), aromatic hydrocarbons (benzene, toluene, xylene, solvent naphtha, Methylnaphthalene), halogenated hydrocarbons (methylene chloride, chloroform, carbon tetrachloride, etc.), amides (dimethylformamide, dimethylacetamide, etc.), esters (acetic acid ethyl ester, butyl acetate ester) , Fatty acid glycerin ester, etc.), nitriles (acetonitrile, propionitrile, etc.) and the like, and solid carriers include, for example, vegetable powder (soybean flour, wheat flour, wood flour, etc.), mineral powder (kaolin) , Bentonite, clays such as acid clay, talc such as talc powder, wax stone powder and silicas such as diatomite and mica powder), white carbon, alumina, sulfur powder, activated carbon, calcium carbonate, etc. One type or two or more types can be mixed and used at an appropriate ratio.

  The surfactant may be any one such as a cationic surfactant, an anionic surfactant and a nonionic surfactant, or may be used alone or in combination of two or more. Examples of the cationic surfactant include alkylamine salts and quaternary ammonium salts. Examples of the anionic surfactant include lignin sulfonate (for example, calcium lignin sulfonate), alkylbenzene sulfonate. (For example, sodium alkylbenzene sulfonate), alkyl naphthalene sulfonate (for example, sodium alkyl naphthalene sulfonate), higher alcohol sulfate, higher alcohol ether sulfate, dialkyl sulfosuccinate, higher fatty acid alkali metal salt, etc. Examples of the surfactant include polyoxyethylene alkyl ether, polyoxyethylene alkylphenyl ether (eg, polyoxyethylene nonylphenyl ether), polyoxyethylene. Polyoxypropylene ethers, polyoxyethylene alkyl esters, sorbitan fatty acid esters, polyoxyethylene sorbitan fatty acid esters, polyoxyethylene polyoxypropylene block polymers, higher fatty acid alkanolamide and the like.

  Examples of the antioxidant include dibutylhydroxytoluene, 4,4-thiobis-6-tert-butyl-3-methylphenol, and the like.

Examples of the dispersant include ethylene glycol and glycerin.
Examples of the preservative include sorbic acid and potassium sorbate.

  Specific examples of surfactants used as emulsifiers, spreading agents, wetting agents, sticking agents, penetrating agents, dispersing agents, etc. include soaps, polyoxyalkylaryl esters (Nonal TM, manufactured by Takemoto Oil & Fats KK) Alkyl sulfates (Emar 10R (registered trademark), Emar 40R (registered trademark) manufactured by Daiichi Kogyo Seiyaku Co., Ltd .; Neopelex R (registered trademark) manufactured by Kao Atlas KK), polyethylene glycol ethers (Nonipol 85R (registered trademark)) Nonionic systems such as Nonipol 100R (registered trademark), Nonipol 160R (registered trademark) manufactured by Sanyo Chemical KK), Polyhydric alcohol esters (Tween 20R (registered trademark), Tween 80R (registered trademark) Kao Atlas KK), and the like Anionic surfactants and the like can be mentioned.

  Furthermore, the pesticide of the present invention may be appropriately mixed with other agricultural chemicals such as fungicides, insecticides, plant growth regulators, herbicides, etc., unless the effects of the control agent of the present invention are hindered. You may use together.

  The control agent of this invention can be manufactured as follows, for example. First, the agrochemical active ingredient and auxiliary agent are mixed at the above-mentioned mixing ratio, and the above-mentioned auxiliary agent / additive and / or other agricultural chemicals are further added and mixed as required to prepare a drug substance. Then, if desired, the drug substance can be appropriately diluted with a solvent such as water or alcohol or a carrier such as clay to obtain an agrochemical formulation. The dosage form of the preparation is not particularly limited, and may be dissolved or dispersed in a suitable liquid carrier depending on the purpose of use, or mixed or adsorbed with a suitable solid carrier, for example, emulsion, oil, spray, liquid , Wettable powders, powders, tablets, granules, ointments and the like. Moreover, it is good also as an oil-based flowable formulation by suspending an agrochemical active ingredient in the vegetable oil used by this invention.

  For example, the control agent of the present invention may be sprayed after being diluted to a predetermined concentration with water or the like at the time of use. When the control agent of the present invention is diluted with a carrier or the like, the concentration of the agricultural chemical active ingredient in the diluted solution is appropriately determined according to the type of agricultural chemical ingredient used, the application environment (weather, temperature, etc.), the degree of disease, etc. Although it may be set, generally it is preferably 0.001 mg to 10 g / 100 ml. The application amount (composition before dilution) varies depending on the occurrence of pests and pathogens, but is usually 0.5 to 20 kg / ha, preferably 1 to 10 kg / ha, more preferably 2.5 to 10 kg / ha. Degree.

  The control agent of the present invention exhibits an excellent insecticidal and bactericidal action against plant pests and pathogens. The control agent of the present invention can be used for various pests and pathogens. Examples of target pests include mites (for example, spider mites such as nymph mite, citrus mite, kanzawa spider mite, mite mite, tuna radish, etc.), cotton aphids, radish Aphids such as aphids and peach aphids, whiteflies such as white leaf whiteflies, whiteflies such as silver leaf whiteflies, thrips such as thrips thrips, thrips thrips, thrips such as thrips Etc.

  The disinfectant of the present invention has very good dispersibility and can uniformly disperse and emulsify the agricultural chemical active ingredient without using a surfactant other than polyglycerin fatty acid ester. In addition, the control agent of the present invention is not only easy to adhere to the pests or pathogens by using polyglycerin fatty acid ester and vegetable oil as an auxiliary agent, but also efficiently absorbed into the body, Excellent insecticidal and bactericidal effects at low concentrations.

  The present invention will be described in more detail with reference to the following examples, but these examples do not limit the scope of the present invention.

  Formulation was carried out at the blending ratios (% by weight) shown in the following Examples 1 to 9 and Comparative Examples 1 to 10, and diluted to a predetermined concentration with water to prepare spray samples. The values in parentheses are the component concentrations in the spray sample.

(Example 1)
Calcium chloride 80% (240mg / 100ml)
Diglycerin monooleate (DO-100) 10% (30mg / 100ml)
Soybean oil 10% (30mg / 100ml)
(Example 2)
Magnesium chloride 70% (210mg / 100ml)
Diglycerin monolaurate (DL-100) 15% (45mg / 100ml)
Castor oil 15% (45mg / 100ml)
(Example 3)
Ammonium chloride 60% (180mg / 100ml)
Diglycerin oleate (O-71-D) 15% (45mg / 100ml)
Rapeseed oil 25% (75mg / 100ml)
(Example 4)
Potassium bicarbonate 80% (240mg / 100ml)
Diglycerin laurate (L-71-D) 15% (45mg / 100ml)
Olive oil 5% (15mg / 100ml)
(Example 5)
Sodium bicarbonate 80% (240mg / 100ml)
Tetraglycerin oleate (J-4581) 10% (30mg / 100ml)
Palm oil 10% (30mg / 100ml)
(Example 6)
Tripotassium phosphate 80% (240mg / 100ml)
Hexaglycerol laurate (J-6021) 10% (30mg / 100ml)
Decaglycerin laurate (J-0021) 10% (30mg / 100ml)
(Example 7)
Trisodium phosphate 50% (150mg / 100ml)
Monoammonium phosphate 30% (90mg / 100ml)
Decaglycerin laurate (J-0021) 10% (30mg / 100ml)
Soybean oil 10% (30mg / 100ml)
(Example 8)
Potassium pyrophosphate 40% (120mg / 100ml)
Calcium lactate 40% (120mg / 100ml)
Decaglycerin oleate (J-0381) 10% (30mg / 100ml)
Corn oil 10% (30mg / 100ml)
(Example 9)
Sodium pyrophosphate 40% (120mg / 100ml)
Calcium chloride 40% (120mg / 100ml)
Diglycerin monooleate (DO-100) 10% (30mg / 100ml)
Olive oil 5% (15mg / 100ml)
Palm oil 5% (15mg / 100ml)

(Comparative Example 1)
Diglycerin monooleate (DO-100) 50% (30mg / 100ml)
Soybean oil 50% (30mg / 100ml)
(Comparative Example 2)
Diglycerin monolaurate (DL-100) 50% (45mg / 100ml)
Castor oil 50% (45mg / 100ml)
(Comparative Example 3)
Diglycerin oleate (O-71-D) 37.5% (45mg / 100ml)
Rapeseed oil 62.5% (75mg / 100ml)
(Comparative Example 4)
Diglycerin laurate (L-71-D) 75% (45mg / 100ml)
Olive oil 25% (15mg / 100ml)
(Comparative Example 5)
Tetraglycerin oleate (J-4581) 50% (30mg / 100ml)
Palm oil 50% (30mg / 100ml)
(Comparative Example 6)
Calcium chloride 100% (300mg / 100ml)
Spreading agent (trade name: approach BI) is added externally (external addition: calcium chloride aqueous solution (300 mg / 100 ml) is prepared, and approach BI is added to 100 mg / 100 ml).
(Comparative Example 7)
Magnesium chloride 100% (300mg / 100ml)
Approach BI added externally (Comparative Example 8)
Sodium bicarbonate 100% (300mg / 100ml)
Approach BI added externally (Comparative Example 9)
Tripotassium phosphate 100% (300mg / 100ml)
Approach BI added externally (Comparative Example 10)
Sodium pyrophosphate 100% (300mg / 100ml)
Approach BI added externally

Control effect against white fly white lice Culex seedlings (variety: Sagamihanjiro, 1.5 leaf stage) were released with adults of white fly white (Trialeurodes vaporariorum) and spawned for 3 days, after which they were removed. Each sample solution diluted to a predetermined concentration shown in Table 1 was sprayed when hatched in a greenhouse and at the second instar larvae. After being kept in the greenhouse for 4 days after spraying, the number of live and dead larvae was counted with an actual microscope, and the insecticidal rate (%) was calculated by the following formula.
Insecticide rate (%) = (Number of dead insects / total number of insects) x 100
The results are shown in Table 1 below.

  From the above results, the control agent of the present invention uses polyglycerin fatty acid ester and vegetable oil as an auxiliary for the agricultural chemical active ingredient, so that the agricultural chemical active ingredient effectively acts on the pest and has an excellent insect control effect. Indicated.

  Next, it formulated with the compounding ratio (weight%) shown to the following Examples 21-30 and Comparative Examples 21-30, and diluted with water to the predetermined density | concentration, and the sample for a dispersion | spreading was prepared.

(Example 21)
80% of thiophanate methyl
Diglycerin monooleate (DO-100) 10%
Soybean oil 10%
(Example 22)
Benomyl 70%
Diglycerin monolaurate (DL-100) 15%
Castor oil 15%
(Example 23)
TPN 60%
Diglycerin oleate (O-71-D) 15%
Rapeseed oil 25%
(Example 24)
Quinoxaline 80%
Diglycerin laurate (L-71-D) 15%
5% olive oil
(Example 25)
Microbutanyl 80%
Tetraglycerin oleate (J-4581) 10%
Corn oil 10%
(Example 26)
Iprodione 80%
Tetraglycerin oleate (J-4581) 10%
Palm oil 10%
(Example 27)
Mannebu 80%
Diglycerin oleate (O-71-D) 10%
Sunflower oil 10%
(Example 28)
80% fenbutane oxide
Hexaglycerol laurate (J-6021) 10%
Palm kernel oil 10%
(Example 29)
Bifenthrin 80%
Diglycerin monooleate (DO-100) 10%
Soybean oil 10%
(Example 30)
Buprofezin 80%
Diglycerin monolaurate (DL-100) 10%
10% olive oil

(Comparative Example 21)
1000-fold dilution of TOPGIN wettable powder (trademark) containing 70% thiophanate methyl (Comparative Example 22)
1000-fold diluted solution of Benrate wettable powder (trademark) containing 50% benomyl (Comparative Example 23)
1000-fold diluted solution of Daconyl Flowable (trademark) containing 40% TPN (Comparative Example 24)
2000-fold dilution of Morestan wettable powder (trademark) containing 25% quinoxaline (Comparative Example 25)
8000 times dilution of Larry wettable powder (trademark) containing 10% microbutanyl (Comparative Example 26)
Lobraal wettable powder (trademark) containing 50% iprodione, diluted 1500 times (Comparative Example 27)
650 times dilution of M Daifer wettable powder (trademark) containing 75% mannebu (Comparative Example 28)
1500-fold diluted solution of Osadang wettable powder (trademark) containing 25% fenbutaine oxide (Comparative Example 29)
1000-fold dilution of Telstar wettable powder (trademark) containing 2% bifenthrin (Comparative Example 30)
1000-fold dilution of APROAD wettable powder (trademark) containing 25% buprofezin

Control effect on powdery mildew Cucumber seedlings (variety: Sagamihanjiro, 0.7 leaf stage) were inoculated with powdery mildew (Sphaerotheca cucurbitae), kept in a greenhouse for about 7 days, and then diluted to the prescribed concentrations shown in Table 2 The sample solution was sprayed. It was kept in a greenhouse, and the number of spots of powdery mildew was counted 15 days after spraying, and the control rate (%) was calculated by the following formula.
Control rate (%) = (1-number of lesions on treated leaves / number of lesions on untreated leaves) x 100
The results are shown in Table 2 below.

  From the above results, the control agent of the present invention uses polyglycerin fatty acid ester and vegetable oil as an auxiliary of the agricultural chemical active ingredient, so that the agricultural chemical active ingredient effectively acts on the pathogenic bacteria, and the low concentration agricultural chemical active ingredient However, it was shown that there was an excellent disease control effect.

Control effect against gray mold Petunia seedlings (variety: Baccarat Red) were grown in an air-conditioned greenhouse (day 25 ° C., night 20 ° C.) and sprayed with a sample solution diluted to a predetermined concentration shown in Table 3 after flowering. After air-drying, inoculate a spore suspension of Botrytis cinerea and keep it in a wet chamber at 20 ° C for 3 days, then count the number of spots of gray mold that formed on petals, Was used to calculate the control rate (%).
Control rate (%) = (1−number of lesions on treated petals / number of lesions on untreated petals) × 100
The results are shown in Table 3 below.

  From the above results, the control agent of the present invention uses polyglycerin fatty acid ester and vegetable oil as an auxiliary of the agricultural chemical active ingredient, so that the agricultural chemical active ingredient effectively acts on the pathogenic bacteria, and the low concentration agricultural chemical active ingredient However, it was shown that there was an excellent disease control effect.

Control effect against the spider mite Mite spider mites (Tetranychus urticae) were released on the cotyledons of common bean seedlings (variety: Paradise, 1.0 leaf stage) and sprayed with a sample solution diluted to a predetermined concentration shown in Table 4 after establishment. After keeping in a greenhouse for 5 days, the number of live and dead insects of the spider mite was counted, and the insecticidal rate (%) was calculated by the following formula.
Insecticide rate (%) = (Number of dead insects / total number of insects) x 100
The results are shown in Table 4 below.

  From the above results, the control agent of the present invention uses the polyglycerin fatty acid ester and vegetable oil as an auxiliary for the agricultural chemical active ingredient, so that the agricultural chemical active ingredient effectively acts on pests, and the low concentration agricultural chemical active ingredient However, it was shown that there was an excellent pest control effect.

Control effect on cotton aphids Cotton aphids (Aphis gossypii) were released on the true leaves of cucumber seedlings (variety: Sagamihanjiro, 1.5 leaf stage) and sprayed with a sample solution diluted to a predetermined concentration shown in Table 5 after establishment. After keeping in the greenhouse for 3 days, the number of viable and dead insects of cotton aphids was counted, and the insecticidal rate (%) was calculated by the following formula.
Insecticide rate (%) = (Number of dead insects / total number of insects) x 100
The results are shown in Table 5 below.

  From the above results, the control agent of the present invention uses the polyglycerin fatty acid ester and vegetable oil as an auxiliary for the agricultural chemical active ingredient, so that the agricultural chemical active ingredient effectively acts on pests, and the low concentration agricultural chemical active ingredient However, it was shown that there was an excellent pest control effect.

Control effect against white fly white lice Culex seedlings (variety: Sagamihanjiro, 1.5 leaf stage) were released with adults of white fly white (Trialeurodes vaporariorum) and spawned for 3 days, after which they were removed. After hatching in a greenhouse, a sample solution diluted to a predetermined concentration shown in Table 6 was sprayed at the third instar larvae. After being kept in the greenhouse for 4 days after spraying, the number of live and dead larvae was counted under the actual microscope, and the insecticidal rate (%) was calculated by the following formula.
Insecticide rate (%) = (Number of dead insects / total number of insects) x 100
The results are shown in Table 6 below.

  From the above results, the control agent of the present invention uses the polyglycerin fatty acid ester and vegetable oil as an auxiliary for the agricultural chemical active ingredient, so that the agricultural chemical active ingredient effectively acts on pests, and the low concentration agricultural chemical active ingredient However, it was shown that there was an excellent pest control effect.

  According to the present invention, even if a surfactant other than polyglycerin fatty acid ester is not used, the dispersibility in water is good, and the control effect is excellent even with a low concentration of agrochemical active ingredients against plant pathogens and pests. A plant pest control agent is provided.

Claims (5)

  A plant pest and disease control agent comprising a pesticide active ingredient and polyglycerin fatty acid ester and vegetable oil as auxiliaries.   The group in which the polyglycerin fatty acid ester is composed of diglycerin monooleate, diglycerin monolaurate, diglycerin oleate, diglycerin laurate, tetraglycerin oleate, hexaglycerin laurate, hexaglycerin oleate, decaglycerin laurate and decaglycerin oleate The control agent of Claim 1 selected from more.   The control agent according to claim 1 or 2, wherein the vegetable oil is selected from the group consisting of soybean oil, rapeseed oil, sunflower oil, corn oil, olive oil, palm oil, palm kernel oil, coconut oil and castor oil.   A pharmaceutical efficacy enhancer containing polyglycerin fatty acid ester and vegetable oil.   The enhancer according to claim 4, wherein the pesticide is used for controlling pests and diseases of plants.