JPS6337762B2 - - Google Patents

Description

[Detailed description of the invention]

The present invention relates to a pest control coating agent characterized by containing a water-insoluble copolymer as a coating film forming agent. Conventional coating agents dilute the active ingredient or filler with a carrier, and then add a film forming agent such as acrylic resin, chlorinated rubber, petroleum resin, vinyl acetate, polyvinyl alcohol with a high saponification value, or latex emulsion. It is made into a preparation by dispersing it in an organic solvent or water. However, the coating film formed after application has the disadvantage that it is easily washed away by rain, and it has been difficult to maintain the effectiveness of the active ingredients for a long period of time. The present invention has been made as a result of various studies to solve the above-mentioned conventional drawbacks.The present invention has revealed that a coating film formed by a coating agent obtained by using a water-insoluble copolymer as a coating film-forming agent can be washed away by rain or water. First, it was discovered that the effects of sterilization, insecticidal repellency, sun protection, etc. can be maintained for an extremely long period of time compared to conventional film-forming agents. The water-insoluble copolymer used as a film-forming agent in the present invention is usually a film-forming substance used for film coating, i.e. 2
Examples include -methyl-5-vinylpyridine-methyl acrylate-methacrylic acid copolymer, polyvinyl acetal diethylamino acetate, diethylaminomethyl methacrylate-methyl methacrylate copolymer, and diethylamino acetal-polyethylsolve. The amount of the water-insoluble copolymer added in the coating agent is 1
~30% by weight is suitable. If it is less than 1%, the rain resistance will be weak, while if it is more than 30%, the rain resistance of the paint film will improve, but the viscosity of the coating suspension will increase, making the coating process difficult, so it is also difficult from an economical point of view. I don't like it. When using these water-insoluble copolymers for the purpose of the present invention, it is necessary to make the water-insoluble copolymers into fine powder in advance, and in this case, the particle size is 100 μm.
The thickness is preferably 50 μm or less, preferably 50 μm or less. Examples of the means for pulverizing the water-insoluble copolymer include a vibration mill, a jet mill, and a low-temperature pulverizer using liquid nitrogen. On the other hand, the film forming aid used in the present invention is
It is preferable to use a copolymer that can be dissolved in water without losing its properties as a water-insoluble copolymer. Examples of such adjuvants are polyethylene glycols of various degrees of polymerization;
Examples include propylene glycol, ethyl cellosolve, and polyoxyethylene sorbitan fatty acid esters. When using the above film-forming aids, one or more types may be used depending on their compatibility with the water-insoluble copolymer, and the amount used is 0.2 to 5 times, preferably 1 to 3 times, the amount of the water-insoluble copolymer. be done. In the present invention, the above-mentioned water-insoluble copolymer may further contain a peelability-imparting agent for the purpose of imparting peelability to the water-insoluble copolymer.
silicone, low molecular weight polyolefin, paraffin,
Nonionic-anionic activators (ether type, ester type, aminoether type, ether ester type, etc.)
A nonion such as an alkanolamide type, an anion such as a sulfuric acid ester type, a sulfonic acid type, a phosphoric acid ester type, etc.) may be added. The amount of the release agent added is usually 20% or less based on the film forming agent. In the present invention, various commonly used agents can be used as pest control agents. Typical drugs include tetrachloroisophthalonitrile, 1.2
-bis(3-methoxycarbonyl-2-thiouridobenzene, methyl-1-(butylcarbamoyl)-2-benzimidazole carbamate, bis(dimethylthiocarbamoyl)disulfide (TMTD), 3-hydroxy-5-methylisoxane N-( Bactericidal agents such as 3',5'-dichlorophenyl)-1,2-dimethylcyclopropane-1,2-dicarboximide (hereinafter referred to as Sumirex); 0,0-diethyl-0-
(5-phenyl-3-isoxazolyl) phosphorothioate, 0,0-dimethyl-0-(3-methyl-4-nitrophenyl) phosphorothioate,
0,0-diethyl-S-(2-ethylthioethyl)
Phosphorodithioate (hereinafter referred to as ethylthiometone), r-BHC0,0-diethyl-0-[2-chloro-1-(2,4-dichlorophenyl)vinyl]
Phosphate, 0,0-dimethyl-S-(N-
Methyl-carbamoylmethyl)phosfluorodithioate, 0,S-dimethyl-N-acetylphosfluoramidethioate, 0-ethyl-0-
2,4-dichlorophenylbenzenephosphonothioate, 2-methoxy-4H-1,1,3,
2-benzoxafluoran-2-4one,
Methyl N-[(methylcarbamoyl)oxy]thioacetimidate, 0,0-dimethyl-S-[2
-methoxy-1,3,4-thiadiazole-5
(4H)-one-4-yl)methyl]dithiophosphate, 0,0-diethyl-0-(3,5,6
-trichloro-2-pyridyl)phosfluorothioate, 1,3-bis(carbamoylthio)-2
- Insecticides such as (N,N-dimethylamino)propane hydrochloride, permethrin, phenotrin, fenpropathrin, fenvalerate, allethrin, phthalthrin, gastropod repellents such as metaldehyde, sodium chlorate (hereinafter referred to as Kusakiller), Herbicides such as IPC agents and trifluralin,
Dimethyl phthalate, 2,3,4,5-bis-
(△ ₂ -butylene)-tetrahydrofuran, 2,
3,4,5-bis-(△ ₂ -butylene)-tetrahydrofurfuryl alcohol, N,N-diethyl-
m-toluamide (hereinafter referred to as DET), caprylic acid ethylamide, 2,3,4,5-bis-(△ ₂ −
butylene)-tetrahydrofurfural, di-m
-propyl-isosycomeronate, secondary butylstyryl ketone, nonyl styryl ketone,
N-propylacetanilide, 2-ethyl-1,
Pest repellent such as 3-hexanediol, di-n-butyl succinate, 2-butoxyethyl-2-furfridene acetate, dibutyl phthalate, tetrahydrothiophene, β-naphthol, diallyl disulfide, bis(dimethylthiocarbamoyl) disulfide, etc. agent tetramethylthiuram disulfite, guanidine, naphthalene cresol,
Rodent repellents such as cycloheximide, zinc dimethyl dithiocarbamate, cyclohexylamine, N,N-dimethylsulfenyl dithiocarbamate, 2,6-dimethyl-octadiene-
(2,6)-al(8) (hereinafter referred to as citral), 0,
Repellents for dogs and cats such as 0-diethyl S-2-ethylthioethyl dithiophosphate (hereinafter referred to as ETP), 0,0-dimethyl S-2-isopropylthioethyl dithiophosphate (hereinafter referred to as MIP),
r-chloralose, 4-(methylthio)-3,5-
Bird repellents such as xylyl N-methyl carbamate, 4-aminopyridine anthraquinone, tetramethylthiuram disulfide, diallyl disulfide, Antu, monofluoro-sodium acetate,
Warfarin, coumachlor, fumarin, comatetralyl silyloside, norbomide, N-3-pyridylthyl-N'-nitrophenyl urea, endoside, alphanaphthylthiourea, thiosemicarbazide, deifenacum, pipal, chlorophyll Rodent repellents such as acinone, silatrene, calciferol, other borericides,
Termiticides such as chlordane and permethrin can be used alone or in combination of two or more. Various commonly used additives such as volatilization rate improvers, plant growth regulators, sun protection agents, deodorants, efficacy enhancers, and fragrances can be optionally added to the pest control agent. Examples and test examples of the present invention will be given below to further explain the invention. Example 1 Metaldehyde 3.0% Isopropyl alcohol 10.0% 2-methyl-5-vinylpyridione/methyl acrylate methacrylic acid copolymer (average particle size 4μ
m) 10.0% Propylene glycol 20.0% Water 57.0% 100.0% The above formulation was mixed to obtain a pest control liniment (slugicide) of the present invention. This coating agent was applied to slug passageways such as boards, concrete, stones, etc., plant trunks, crop pods, and leaves, and no chemical was washed away by rain, indicating that the effect was long-lasting. Comparative Example 1 In Example 1, acrylic acid, which is a copolymer of acrylic acid ester and methacrylic acid ester, was used instead of 10.0% of the 2-methyl-5-vinylpyridine-methyl acrylate methacrylic acid copolymer (average particle size 4 μm). Alkyl acid-hydroxyalkyl methacrylate-styrene copolymer (average particle size 4μ
m) A coating agent was obtained in the same manner as in Example 1 except that 10.0% was used (hereinafter referred to as conventional product 4). Example 2 1-Naphthyl-N-methyl carbamate 5.0% Diethylaminomethyl methacrylate/methyl methacrylate copolymer (average particle size 5 μm) 10.0% Propylene glycol 20.0% Ethyl cellosolve 5.0% Water 60.0% 100% Mixed according to the above formulation, the present invention A pest control liniment (an insecticide for insect pests and armyworms) was obtained. This coating agent was applied to the ground, pods, leaves, etc. of crops (potatoes, leafy vegetables, fruit vegetables, beans, etc.), and as in Example 1, the effect was sustained for a long period of time without any loss of the agent. Example 3 0,0-dimethyl-S-(N-methyl-carbamoylmethyl)phosfluorodithioate 0.1% Polyvinyl acetal diethylaminoacetate (average particle size 4 μm) 8.0% Polypropylene glycol 10.0% Talc 3.0% Water 78.9% 100.0% Above The ingredients were mixed according to the formulation to obtain a pest control coating agent of the present invention (soil/ground pest insecticide for armyworms, aphids, spider mites, green caterpillars, mealybugs, scale insects, citrus beetles, etc.). This liniment was applied to the pods, trunks, leaves, etc. of crops (leaf vegetables, fruit vegetables, potatoes, beans, fruit trees, flowers, plants, etc.), and the effect lasted for a long time without washing away, as in the above example. . Example 4 Violet 0.1% Diethylaminomethyl methacrylate/methyl methacrylate copolymer (average particle size 3.6 μm) 7.0% Propylene glycol 14.0% Ethyl cellosolve 3.0% Titanium oxide 0.3% Water 75.6% 100.0% Pest control application of the present invention using the above formulation (control agent for botrytis, flan, sclerotia, rot, powdery mildew, rot, etc.). Apply this liniment to the hus of crops (leaf vegetables, fruit vegetables, strawberries, tobacco, sugar beets, beans, fruit trees, flowers, plants, etc.)
When applied to leaves, etc., the same effect as above was obtained. Example 5 MH-30 0.5% 2-methyl-5-vinylpyridine/methyl acrylate methacrylic acid copolymer (particle size 4.6 μm)
10.0% Propylene glycol 15.0% Talc 15.0% Water 59.5% 100.0% A pest control coating agent of the present invention (same as above) was obtained according to the above formulation. This coating solution was applied to the above-ground parts of crops (onions, potatoes, sugar beets, tobacco, etc.) or to harvested products, and the same effect as above was obtained. Example 6 Kusa killer 0.3% Polyvinyl acetal diethylaminoacetate (particle size 4.4 μm) 10.0% Polyethylsolve 25.0% Polyethylene glycol 5.0% Water 59.7% 100.0% The pest control coating of the present invention {herbicide (piloerection) (medium usable)} was obtained. This coating agent was applied by spraying using a sprinkler to annual grass and broad-leaved weeds that occur in strawberry fields and vegetable fields such as green peppers and tomatoes, and the same effects as described above were confirmed. Example 7 Trifluworin 2.0% Polyvinyl acetal diethylaminoacetate (particle size 5.5 μm) 4.0% Polypropylene glycol 10.0% Talc 3.0% Water 81.0% 100.0% The pest control liniment of the present invention {herbicide (used during piloerection) was mixed according to the above formulation. possible)} was obtained. Apply this liniment to crops (leaf vegetables, fruit vegetables, cucumbers, beans,
The same effect as above was obtained by spraying on weeds growing around root vegetables, flowers, tea, mulberry, forest seedbeds, etc.). Example 8 Phenitrothion 0.3% Carplex 3.0% Polyvinyl acetal diethylaminoacetate (average particle size 5 μm) 7.0% Polypropylene glycol 10.0% Ziecrite 15.0% Titanium oxide 10.0% Water 54.7% 100.0% Mixed according to the above formulation and applied for pest control of the present invention An agent for controlling red beetles and pit vipers and a sunscreen agent was obtained. Apply this liniment to tangerine trees.
A 15th grade student, Wase Miyagawa, applied the same effect to the entire main stem with a diameter of 20cm and confirmed the same effect as above. Example 9 N,N-dimethylmetatoluamide 0.1% 2-methyl-5-vinylpyridine/methyl acrylate methacrylic acid copolymer (average particle size 7.6 μm)
10.0% Propylene glycol 20.0% Talc 5.0% Water 64.9% 100.0% Example 10 Tetrachloroisophthalonitrile 0.2% Polyvinyl acetal diethylaminoacetate (average particle size 5.5 μm) 8.0% Polypropylene glycol 10.0% Talc 3.0% Water 78.8% 100.0% Example 11 0,0,-dimethyl-S-[(2-methoxy-1,
3,4-thiadiazol-5-(4H)-one-4
-yl)methyl] dithiophosphate 0.1% Diethylaminomethyl methacrylate/methyl methacrylate copolymer (average particle size 4.4 μm) 10.0% Propylene glycol 20.0% Ethyl cellosolve 5.0% Talc 3.0% Titanium oxide 0.5% Water 61.4% 100.0% Above implementation A pest control coating agent of the present invention (bag treatment agent for fruit pest repellent, insect repellent, antibacterial, etc.) was obtained according to each of the formulations in Examples 9 to 11. Apply these liniments to crops (pear, peach, apple, etc.)
Pests that attach to the skin (mulberry scale beetles, peach beetles, peach beetles, pear beetles, absorbent night moths,
stink bugs, etc.), pathogenic bacteria (black spot, gray spot, black spot, leaf spot, powdery mildew, curly leaf disease,
In order to repel or exterminate diseases such as Monilia disease, etc., fruit bags are coated in advance. Example 12 Sumithion (0,0-dimethyl 0-(3-methyl-4-nitrophenyl) phosfluorothioate 2.0% Diethylaminomethyl methacrylate/methyl methacrylate copolymer (average particle size 5 μm) 10.0% Propylene glycol 20.0% Ethyl Cellosolve 5.0% Water 63.0% 100.0% A liniment for pest control of the present invention (an agent for controlling pine beetles in general, especially pine beetles, stone flies, and mites) was obtained according to the above formulation.This liniment was applied to pine, cedar, Spray the active ingredient at 1 kg per hectare by aerial spraying or ground spraying on the trunks, branches, and leaves of Japanese cypress trees, etc., where insects bore through, feed on, or eat. The effect lasted for a long time without being washed away or washed away by rain.In addition, by using the above formulation, there was no risk of chemical damage or environmental pollution due to scattering, and it was effective in preventing the invasion of pine tree nematode, which is said to kill pine trees. Example 13 Pisito 0,0-dimethyl 0-(3-methyl-
4-Methylmercaptophenyl) phosfluorothioate 0.1% 2-Methyl-5-vinylpyridine-methyl acrylate/methacrylic acid copolymer (average particle size 4.4μ)
m) 10.0% Propylene glycol 20.0% Water 69.9% 100.0% They were mixed according to the above formulation to obtain a pest control coating agent of the present invention (rice weevil, rice weevil control agent). Apply this coating agent to the ground area of the rice plant, which is the habitat of pest larvae and the infestation area, or to the bulge at the base of the rice plant, which is the habitat area for pupae and when they emerge.
By spraying 25mg to 50mg, or by spraying the amount of active ingredient per 10α on the water surface to form a coating, the drug can be washed away by water.
There was no washout, the effect lasted for a long time, and the effect was accurate. In addition, when the above formulation is sprayed on the water surface, the wind blows the film formed towards the base of the rice plants, effectively achieving the purpose of pest control, but when there is no water in the rice fields, spraying at the base of the rice plants It is better to apply it. In addition, even when sprayed in the air, the liquid coating partially covers the leaf surface or rice ears to prevent pests that damage the leaves or the rice grains during the ripening stage, and most of the film falls onto the water surface and can be sprayed on the ground. It can be used in the same way as the method, and a desirable control effect can be obtained. Example 14 Phenothrin 0.03% Diethylaminomethyl methacrylate/methyl methacrylate copolymer (average particle size 5 μm) 10.0% Propylene glycol 20.0% Ethyl cellosolve 5.0% Water 64.97% 100.0% Mixed according to the above formulation, the pest control coating of the present invention ( An agent for controlling rice weevils, rice water weevils, rice leafhoppers, rice leafhoppers, stink bugs, beetles, planthoppers, rice carabae, mole crickets, etc.) was obtained. Apply this coating agent to the ground area of the rice plant, which is the habitat of pest larvae and the infestation area, or to the bulge at the base of the rice plant, which is the habitat area for pupae and when they emerge.
7.5mg to 15mg) By spraying or spraying on the water surface so that the amount of active ingredient per 10α is 30g to 100g to create a coating film, the drug will not be washed away or washed away by water, thus causing damage to seafood. The effect lasted for a long time without any problems, and the effect was accurate. Furthermore, when the above formulation is sprayed on the water surface, the wind blows the film formed towards the base of the rice plants, effectively achieving the purpose of pest control; however, when there is no water in the rice fields, spraying at the base of the rice plants It is better to apply it. In addition, even when sprayed in the air, the liquid coating partially covers the leaf surface or rice ears, preventing pests that damage the leaves or the rice grains during the ripening stage, and most of the liquid coating falls onto the water surface. It can be used in the same way as the ground spray application method, and a desirable pest control effect can be obtained. Example 15 Sumithion (0,0-dimethyl 0-(3-methyl-4-nitrophenyl)phosfluorothioate 0.05% Dimethoate (0,0-dimethyl S-(N-methyl-carbamoylmethyl)phosfluorothioate) Eight
0.05% Polyvinyl acetal 10.0% Diethylaminoacetal/Polyethylsolve
25.0% Polyethylene glycol 5.0% Water 59.9% 100.0% Mixed according to the above formulation, the liniment for controlling pests of the present invention (rice leafminer, rice leafminer, rice planthopper, planthopper, snail beetle, stink bug, rice caramel fly, A control agent for early rice pests such as rice beetles and mole crickets was obtained. Spray 25g to 50g (25mg to 50mg of active ingredient) of this liniment per plant to the ground area of the rice plant where pest larvae eat, cause damage, or live, or to the leaf part at the base of the plant, or apply 10α By spraying 100 to 300 g of active ingredient per dose onto the water surface to form a coating film, the drug was not washed away or washed away by water, and the effect lasted for a long time and exhibited accurate effects. Furthermore, when the above formulation is sprayed on the water surface, the film formed is blown towards the base of the rice plants by the wind, effectively achieving the purpose of pest control; It is best to spray control. In addition, even when sprayed in the air, the liquid coating partially covers the leaf surface or rice ears to prevent pests that damage the leaves or the rice grains during the milk-ripening stage, and most of the film falls on the water surface and is sprayed on the ground. It can be used in the same way as the coating method, and a desirable pest control effect can be obtained. Comparative Example 2 360 g of diacetone acrylamide, 240 g of 2-ethylhexyl acrylate, 900 g of distilled water, and 12 g of dioctyl sodium sulfosuccinate and 12 g of polyoxyethylene octyl phenyl ether as surfactants were placed in flask 3 and stirred and mixed to dissolve. did. Next, inject nitrogen for about 30 minutes at room temperature.
0.6 g of ammonium persulfate was added as a catalyst and heating was started. When the temperature reached 60°C or higher, the temperature rose rapidly, so the reaction temperature was adjusted to 70°C by cooling and the reaction was carried out for about 1 hour. . After the reaction, cool to room temperature and filter using case.
A copolymer latex having a ratio of diacetone acrylamide to 2-ethylhexyl acrylate of 60:40 was produced (hereinafter referred to as conventional product 5). Test example 1 Sunburn prevention effect on trunk of Satsuma mandarin orange (15 year old mandarin tree, Miyagawa Wase, applied to the entire main trunk with a diameter of approximately 20cm, applied in late March)

[Table] Test Example 2 In order to investigate the sustainability of the efficacy of the insecticide for application of the present invention, a test was conducted to prevent the infestation of the Citrus chinensis, which bites into the trunks of Satsuma oranges. Each drug was tested in duplicate with 3 plants in 1 area of 10-year-old Satsuma mandarin oranges. Example 3 of dimethoate preparation according to the present invention.
On June 30th, use a brush to apply 30% of the application agent from the ground area.
It was applied to tree trunks up to a height of 1.5 cm, and conventional coating agents were also treated in the same way. On October 20th, we investigated the areas where wood chips were coming out from the applied area (larvae-eating holes). Weeding prevention rate (%) = (1 - Number of eaten areas in treated area / Number of eaten areas in non-treated area) x
100

[Table] Test Example 3 In order to examine the sustainability of the efficacy of the applied slugicide of the present invention, the application agent of Example 1 was sprayed on the roots of Chinese cabbage plants (approximately 100 cm ² of surrounding area per plant) on June 5th. In addition, 15 conventional slug-killing pellets were placed around each Chinese cabbage plant, and the number of slug deaths was compared and investigated every two days. The test plot consisted of two consecutive three-plant plots in one section.

[Table] Test Example 4 In order to examine the sustainability of the efficacy of the fungicide for application of the present invention, a test was conducted on the effect of inhibiting the onset of gray mold on strawberries. Each drug was tested in duplicate with 5 plants per section, and the coating agent of Example 4 according to the present invention was sprayed during the strawberry fall stage, and the control drug (hydrating powder) was applied in a predetermined concentration in a predetermined amount as before. Sprayed. The investigation was conducted for 30 days after treatment until near the end of harvest.

[Table] Test Example 5 In order to examine the sustained weed suppression effect of the applied herbicide of the present invention, annual grass weeds such as Mehishiba and Enokorogasa, and broad-leaved weeds such as Grassweed in a tomato field were tested.
A control test was conducted using dogfish. Each chemical agent was tested in triplicate in a 1-square ^meter area, and the coating agent of Example 6 according to the present invention was sprayed on the ground surface at the peak of each weed's growth, and the control agent (emulsion or wettable powder) was used as a conventional one. A predetermined amount was sprayed at a predetermined concentration, and three weeks after the treatment, weeds were investigated for emerging and remaining weeds.

[Table] 〓 Number of weeds occurring in untreated area〓

Claims (1)

[Claims] 1 2-Methyl-5-vinylpyridine-methyl acrylate-methacrylic acid copolymer, polyvinyl acetal diethylamino acetate, diethylaminomethyl methacrylate-methyl methacrylate copolymer, and diethylamino acetal-
A pest control coating agent comprising at least one water-insoluble copolymer selected from polyethylsolve. 2 2-Methyl-5-vinylpyridine-methyl acrylate-methacrylic acid copolymer, polyvinyl acetal diethylaminoacetate, diethylaminomethyl methacrylate-methyl methacrylate copolymer and diethylaminoacetal-
A method for controlling pests by applying a pest control coating agent containing at least one water-insoluble copolymer selected from polyethylsolve to an object or place requiring treatment.