JPS62164601A - pest control agent - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to pest control agents.

E. Conventional techniques and their problems] Conventionally, preparations in which active substances are held in carriers have been used to control sanitary pests and nuisance pests that live in still water systems such as lakes, ponds, and underground spring tanks. There is.

However, since the above-mentioned preparations simply hold the active substance in a carrier, the active substance is difficult to diffuse in water, and if the preparation settles in sludge deposited on the bottom of a lake or marsh, for example, However, if the solubility of the preparation in water is high, there is a problem that the treatment water area of the preparation will be spread over a wide range.

[Problems to be Solved by the Invention] Therefore, the present inventors focused on the above-mentioned problems with the conventional technology, that is, the diffusibility of active substances in water, and
After extensive research to solve these problems and develop a pest control agent, we were surprised to find that when using a pest control agent containing a pest control ingredient mixed with a substance that generates gas in water, The present invention was completed based on the discovery that active substances diffuse extremely efficiently in water.

[Means for Solving the Problems] That is, the present invention relates to a pest control agent characterized in that a pest control component is blended with a substance that generates gas in water.

[Example] The pest control agent of the present invention can be obtained by blending a pest control component with a substance that generates gas in water.

As the substance that generates gas in water, any substance can be used as long as it generates gas when immersed in water. Things that generate gas: Things that generate oxygen gas like soda percarbonate in water: Liquefaction! ! Basic,
Liquefied gases such as liquefied nitrogen and liquefied carbonate: Examples include solids that generate gas in water, such as dry ice.

As the acid used in the substance that generates carbon dioxide gas by the reaction of acid and carbonate in water, both organic acids and inorganic acids can be used, but these acids are preferably water-soluble and solid.

Examples of the 41-organic acids include aminocarboxylic acids, formic acids,
Straight chain fatty acids such as acetic acid, propionic acid, butyric acid, valeric acid:
Dicarboxylic acids such as oxalic acid, malonic acid, succinic acid, glutaric acid, adipic acid, pimelic acid, fumaric acid, maleic acid, phthalic acid, isophthalic acid, and terephthalic acid; acidic amino acids such as glutamine and aspartic acid; glycolic acid , lactic acid, hydroxyacrylic acid, α-oxybutyric acid, glyceric acid, tartronic acid, malic acid, tartaric acid,
Citric acid, salicylic acid (o, IIl, p), gallic acid,
Oxyacids such as mandelic acid, tropic acid, ascordoic acid, gluconic acid; cinnamic acid, benzoic acid, phenylacetic acid, nicotinic acid, kainic acid, sorbic acid, pyrrolidonecarboxylic acid, trimellitic acid, benzenesulfonic acid, toluene Examples include sulfonic acids and acidic salts of these organic acids.

As an inorganic acid, for example, phosphoric acid, potassium dihydrogen phosphate, dihydrogen phosphate: ~leacum, sodium sulfite, potassium sulfite, sodium metabisulfite (sodium metabisulfite), potassium metabisulfite potassium sulfite), sodium acid hexametaphosphate, potassium acid hexametaphosphate, sodium acid birophosphate,
Examples include acidic potassium birophosphate and sulfamic acid. Among these, aliphatic dicarboxylic acids such as succinic acid, fumaric acid, phosphoric acid, and acid salts thereof are particularly preferably used in terms of cost and stability of the formulation.

Examples of the carbonates include sodium bicarbonate, sodium carbonate, sodium dicarbonate, potassium bicarbonate, potassium carbonate, potassium sesquicarbonate, ammonium bicarbonate, ammonium carbonate, ammonium sesquicarbonate, and the like. may be used alone or in combination of two or more.

The pest control components include 11-methoxy-3,7,
11-trimethyl-2,4-dodecagenoic acid-1-methylethyl ester (generic name methoprene, hereinafter referred to as methoprene), ethyl-3,7,11-trimethyl-2,4-dodecagenoate (generic name hydro 2,3,4 , 5, 6, 7.
8.8-octachloro-2,3,3a, 4.7.7a
-hexahydro-4,7-methanoindene (common name rolldane, hereinafter referred to as chlordane), 3-allyl-
2-Methylcyclopent-2-en-4-one-1-yl former-cis/trans-chrysanthemate (generic name: allethrin, trade name: pinamine: Sumitomo Chemical ill FJ)
), 3-allyl-2-methylcyclopent-2-en-4-one-1-yl d-cis/trans-chrysanthemate (trade name: Pinamine Forte, manufactured by Sumitomo Chemical), d-3- Allyl-2-methylcyclopent-2
-en-4-one-1-yl d-trans-chrysanthemate (trade name Exlin: manufactured by Sumitomo Chemical), 3-
Allyl-2-methylcyclopent-2-en-4-one-1-yl d-trans-chrysanthemate (-ship name Bioallethrin), N-(3,4,5,6-ketonehydrofucrimide) -Medyl old-cis/trans-crisanthemate (-ship name phthalthrin, product name neopinamine or tetramethrin: manufactured by Sumitomo Chemical), 5-benzyl-3-furylmethyl d-cis/trans-crinanthemate (-ship Resmethrin, trade name Crysuronforte (manufactured by Sumitomo Chemical), 2-methyl-5-(2-
propargyl)-3-furylmethylchrysanthemate (-
Ship name: Frametrin)
Dimethyl-3-(2,2-dichloro)vinylcyclopropane lupoxylate (ship name: Vermethrin, trade name: Exmin: manufactured by Sumitomo Chemical, hereinafter referred to as Exmin), 3-phenoxybenzyl d-cis/trans-chrysante Mart (-ship name Phenothrin, product name Smithlin: manufactured by Sumitomo Chemical, hereinafter referred to as Smithlin), α-
Cyano-3-phenoxybenzyl α-isopropyl-4
-Chlorophenyl acetate (-Ship name: Fuenvalerate: Trade name: Sumicidine: manufactured by Sumitomo Chemical @J, hereinafter referred to as Sumicidine), (R.

S)-α-cyano-3-phenoxybenzyl (1R1
IS3-cis/trans-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylate-methrin), α-cyano-3-phenoxybenzyl dcis/trans-clinanthemate (- Cyphenothrin (hereinafter referred to as Cyphenothrin)
, (S)-α-cyano-3-phenoxybenzyl (1
R. cis)-3-(2.2-dichlorovinyl)-2.2
-dimethylcyclopropanecarboxylate (-ship name Decamethrin, hereinafter referred to as Decamethrin), 0.0-dimethyl O-(2.2-dichloro)vinyl phosphate (
- ship name dichlorvos), 0,0-dimethyl 0-(3-methyl-4-nitrophenyl), thionophosphate (
-Ship name Fenitrothion), 0.0-diethyl 0-2
-isopropyl-4-methyl-pyrimidyl-(6)-thiophosphate (-ship name Diazinon), 0.0-
Dimethyl S-(1,2-dicarboethoxyethyl)-dithiophosphate (-ship name malathion), 0,0°
-diethyl0-(3-oxo-2-phenyl-211
-pyridazin-6-yl) fluorothioate (-
Ship name: Pyridafenthione (hereinafter referred to as pyridafenthione), O-isopropoxyphenylmethylcarbamatene), O-(4-bromo-2.5-dichlorophenyl) 0.0-dimethylphosphorothioate (-ship name: Promophos), Examples include insecticides such as alkanes having 13 to 18 carbon atoms such as 6-ethylhexadecane, and these may be used alone or in combination of two or more. Among these, methoprene, hydroprene, H
PEP is preferably used.

The pest control component can be applied as it is to substances that generate gas in water, but may be prepared in the form of a liquid or solid agent. In preparing a liquid form, carriers used include, for example, water: alcohols such as methyl alcohol and ethyl alcohol; ketones such as acetone and methyl ethyl ketone; ethers such as tetrahydrofuran and dioxane; hexane, kerosene, and paraffin. , aliphatic hydrocarbons such as petroleum benzene; aromatic hydrocarbons such as benzene and toluene; esters such as ethyl acetate; and halogenated hydrocarbons such as dichloroethane. In this case, the pest control component is usually adjusted to be contained in the carrier in an amount of 1 to 50% by weight, although it varies depending on its type and the type of carrier. In addition, additives such as emulsifiers, dispersants, stabilizers, surfactants, and propellants may be added to the thus obtained liquid preparation, if necessary.

Examples of the emulsifier include sorbitan fatty acid ester, glycerin fatty acid ester, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene alkyl ether, polyoxyethylene alkyl phenyl ether, and these may be used alone, or Two or more types may be used in combination.

Examples of the dispersant include mineral powders such as kaolin; water-soluble polymer compounds J3 such as methylcellulose and hydroxypropylcellulose; surfactants;
These things may be used alone or in combination of two or more.
may be used together.

The surfactants include soaps, polyoxyethylene fatty alcohol ethers such as polyoxyethylene oleyl ether, polyoxyethylene alkyl allyl ethers such as polyoxyethylene nonylphenyl ether, polyoxyethylene fatty acid esters, fatty acid glycerides, and sorbitan. f of fatty acid ester, higher alcohol
t[Ester, alkylaryl sulfone such as sodium dodecylbenzenesulfonate 1lij213: Alkyl quaternary ammonium salt such as benzyl chloride, etc., and these may be used alone, or two or more may be used may be used.

Examples of the propellant include propellants such as liquefied petroleum gas, dimethyl ether, and fluorocarbon, and these may be used alone or in combination of two or more.
may be used.

In addition, when used in the form of a solid agent, for example, mineral powders such as silicic acid, kaolin, activated carbon, bentonite, diatomaceous earth, talc, clay, IMM calcium, ceramic powder, wood flour, soybean flour, etc. It can be used by adding it to a carrier such as a vegetable powder such as wheat flour, starch, or a clathrate compound such as cyclodextrin. In this case,
The pest control component varies depending on its type and the type of carrier, but it is usually adjusted to contain 1 to 50% by weight in the ID body.

In addition to the above, the thus obtained solid agent may be one in which a plastic such as vinyl chloride, polyethylene, polypropylene, or polystyrene is used as a carrier, and the pest control component is kneaded into the plastic.

In the present invention, in addition to the above-mentioned liquid or solid agents, spray drying methods using polygonyl alcohol, carboxymethylcellulose, etc.; in-liquid curing methods using gelatin, polyvinyl alcohol, alginic acid, etc.; It can be adjusted to a microencapsulated form according to the cellvation method, or
- It may be prepared in the form of a gel using a gelling agent such as turgotol or carrageenan.

Furthermore, the thus obtained pest control agent of the present invention includes conventionally used pest repellents, efficacy enhancers, antioxidants, rodent control and repellents, fungicides, fungicides, and herbicides. , fertilizer, used clothing #1, coloring agent, etc. may be added as appropriate.

As the insect repellent mentioned above, N,N-diethyl-meth-
Toluamide (hereinafter referred to as DET), 2,3,4゜5
-Gos(Δ2-butylene)-tetrahydrofurfural, di-n-propylisocincomeronate, di-n-butylsuccinate, 2-hydroxyethyl ocdyl sulfide, etc.; as a potency enhancer, t(2-ethylhexyl) - and cyclo-[2,2,mo-5-hebutene-2,
3-dicarboximide, 6-propyl biveronyl)
- Butyl carbityl ether, etc.: As antioxidants, butylhydroxyanisole, dibutylated hydroxytoluene, tocopherol, γ-oryzanol, etc.; as rodent control and repellents, α-naphthylthiourea, cycloheximide, etc.; as fungicides is salicylic acid,
p-chloro-m-xylenol, 2-(4-diazoyl)benzimidazole, etc.; antifungal agents include α-bromocinnamic aldehyde, N-dimethyl-N-phenyl-N-(fluorodichloromethyl)thiosulfamide; herbicides As agents, phenoxy herbicides such as 2.4-PA, )IcP, carbamate herbicides such as IPC, urea herbicides such as PUN, etc.; as fertilizers, nitrogen, phosphoric acid, potassium non-fertilizer R1 In addition to organic fertilizers such as oil residue and bone meal, secondary ingredients include menthol, cinnamic aldehyde, citronella oil, and citral, as well as synthetic fragrances, etc. Coloring agents include Food Red No. 2, Food Red No. Food colorings such as Yellow No. 5, Food Yellow No. 4, Food Blue No. 1, etc. can be used, but not only these, but also Haku-no-b may be used.

When the pest control agent of the present invention thus prepared is used, it is applied to still water systems such as lakes, ponds, underground spring tanks, etc. It can be used by purchasing, spraying, throwing, etc.

In addition, the pest control ingredients used in the pest control agent of the present invention, pest repellents, efficacy enhancers, antioxidants,
The amount of animal extermination and repellent, fungicide, fungicide, herbicide, fertilizer, clothing agent, coloring agent, etc. to be applied may be determined as appropriate depending on the formulation, application method, application location, etc.
Although not limited to, when used in the form of a propellant with liquefied gas, the active ingredient compound is usually 1 to 80%,
Preferably, the content may be from 5 to 40% by weight, and when it is in the form of a solid agent such as a powder, it may be contained from 1 to 50% by weight, preferably from 2 to 20% by weight.

The concentration of such pest control components in water varies depending on the component used, but it can usually be used at a concentration of 5 ppm or less.

Next, the pest control agent of the present invention will be explained in more detail based on Examples, but the present invention is not limited to these Examples.

Examples 1 to 3 As gas generating components, succinic acid, sodium carbonate
1II! Sodium acid, as pest control ingredients, Needplus NF (manufactured by Takeda Pharmaceutical Co., Ltd., trade name), HPEP, polyoxyethylene sorbitan monostearate, and sorbitan monostearate were adjusted to have the compositions shown in Table 1, respectively. Collect 50g and make the pressure 400! +/m
to obtain tablets with a diameter of 4c+n.

Table 1 Next, the pest control agents obtained in Example 1 and Example 2 above were tested at a concentration of 0. Approximately 1,000 pieces of mud were collected from each point on the downstream side of the sprayed waterway using a hishik, put in a polyethylene bag, and taken home to collect Chironomus Na.
uiplun+us)1 was taken out.

The removed octopus was transferred to a polycup containing 450 ydl of distilled water, and the inhibition rate of emergence was determined using the following formula.

Number of test fields These results are not shown in Tables 2 and 3, respectively.

[Leaving space below] Table 2 Note) S.J.Sho area refers to a point upstream of the point treated with the drug and not affected by the drug.

Table 3 Also, the pest control agent obtained in Example 2 was applied to waterways that required treatment at a concentration of 0. O5 ppm J: After spraying the sea urchins, after the specified number of days had passed, the Culex spiders on the downstream side of the chemical spraying channel were collected using a hishiaku, placed in a polyethylene bag, and brought back to Japan.The Culex mosquito spiders were taken out. . The extracted seeds were transferred to a polycup containing 450 ml of distilled water, and the inhibition rate of emergence was determined in the same manner as above.

The results are shown in Table 4.

Table 4 The number in parentheses indicates the number of collected!li.

Examples 4 to 6 Pest control agents were obtained using the same ingredients as in Examples 1 to 3, except that 1% by weight of methoprene was used instead of MP[Pl ffiω% used in Examples 1 to 3.

Next, the pest control agents obtained were sprayed into waterways in the same manner as in Examples 1 and 2, and the inhibition rate of midge emergence was determined. It was observed that the drug had the same effect as the drug.

Examples 7 to 9 Pest control agents were obtained using the same ingredients as in Examples 1 to 3, except that 1% by weight of hydrobrene was used instead of HPEPlr[% used in Examples 1 to 3.

Next, the pest control agents obtained were sprayed into waterways in the same manner as in Examples 1 and 2, and the inhibition rate of midge emergence was determined. It was observed that the drug had the same effect as the drug.

Examples 10 to 21 A mini-cylinder for liquefied gas with a diameter of 181M, a length of 65rnM, and a volume of 1413 was filled with active ingredients, additives, liquefied gas, and propellant so as to have the composition shown in Table 5. After adjustment, a seal was applied using a conventional method to obtain a pest control agent.

The dispersibility of the cylinder-type pest control agents obtained in Examples 10 to 21 above is about 150 to 200 times higher than that of the tablet-type pest control agents obtained in Examples 1 to 9 in the same amount.
Therefore, the control efficiency of bomb-type pest control agents was large in proportion to its diffusibility.

Margin below E] Table 5 (Note) DHE: Dimedyl ether Example 22~
33 Example 1 except that 0.1% by weight of methoprene was used instead of 0.1% by weight of HPEP used in Examples 10 to 21.
A pest control agent was obtained using the same ingredients as 0-21.

Examples 34-45 HPEP O,Ii 774 used in Examples 10-21
Pest control agents were obtained using the same ingredients as in Examples 10 to 21, except that 0.1% by weight of hydrobrene was used instead of %.

The control efficiency of the cylinder-type pest control agents obtained in Examples 22 to 45 above is slightly lower than that of the pest control agents obtained in Examples 10 to 21, but none of them are practically effective. there were.

Examples 46 to 57 Pest control agents were obtained using the same ingredients as in Examples 10 to 21, except that 7% nitrothion (10% by weight) was used instead of the active ingredient used in Examples 10 to 21.

Although the pest control efficiency of the obtained pest control agent was slightly lower than that of the pest control agents obtained in Examples 10 to 21, it was practically effective.

[Effects of the Invention] Since the pest control agent of the present invention is a substance that generates gas in water and contains a pest control component, the pest control component diffuses extremely efficiently in water and provides excellent pest control effects. play.

In addition, cylinder-type pest control agents use liquefied gas or propellant as substances that generate gas in water, so the active ingredients are highly diffusible, and because they are in cylinders, they are stable over time. It is excellent.

Patent applicant Earth Seikuwa Co., Ltd. Representative patent attorney Sota Asahina and 1 other person...1 Italy]
- Go 1 Power of procedural amendment (Indication of self-control case 1986 Patent Application No. 4734 2 Name of invention pest control agent 3 Person making amendment Relationship with case Patent applicant 4 Agent 540 Telephone (06) 943- 8922 (generation, (4'+
, 1j-5; Idiot 1 person 5 Subject of amendment (1) Contents of amendment in column 6 of "Detailed description of the invention" of the specification (1) "- Ship name mail I. "Bren" [-ship name (・Bren (JP-A-47-19025@
(Identical to or related to the description in the official gazette)" etc.

(2) On page 6, line 4, "-Ship name Hydroprene" is corrected to "-Ship name Hydroprene (same as described in JP-A-48-44430Q, or variants thereof)".

(3) 10th line from the bottom of page 6: “Insect growth regulator:”
"Insect growth regulator; JP-A-58-121267, JP-A-58-140066, JP-A-58-16
S-2-(4-phenoxy)phenoxyethyl-tomethylthiol carbamate 2-(4-phenoxy)phenoxyethyl-N-methyl-N-methylthiol described in 7563@ publication or JP-A-58-216133 Carbame-1-, S-2-(4-phenoxy)phenoxyethyl-N.

N-dimethylthiol carbamate phenoxy> Thiol carbame 1-derivatives such as phenoxyethyl-N-ethylthiol carbamate, 5-bromo-3 described in JP-A-58-297G7
-5-promohydans 1 to 5-promohydanes such as -(4-chlorophenyl)-1-(2,6-difluorobenzoyl)hydantoin
5-chloroO-3-(4-chlorophenyl)-1-(
5 such as 2,6-difluorobenzoyl)hydantoin
- promohytantoin derivatives,” is corrected.

that's all

Claims (1)

[Claims] 1. A pest control agent characterized in that a pest control component is blended with a substance that generates gas in water. 2. The pest control agent according to claim 1, wherein the pest control component is an insect growth regulator. 3. The pest control agent according to claim 2, wherein the insect growth regulator is methoprene, hydroprene, or 2-[1-methyl-2-(4-phenoxyphenoxy)ethoxy]pyridine.