摘要:
A solid pesticidal composition containing acephate is stabilized by adding thereto at least one stabilizer selected from the group consisting of boron oxide, metaboric acid, aluminum oxide and the calcined product of synthetic silicon dioxide.
摘要:
The present invention relates to a method for stabilizing acephate which comprises adding a sodium salt of condensed phosphate and/or a synthetic silicic acid in which the surface silanol groups being alkylsilylated to acephate or acephate-containing dry pesticidal formulation and a stabilized acephate having added a sodium salt of condensed phosphate and/or a synthetic silicic acid in which the surface silanol groups being alkylsilylated.
摘要:
A liquid pesticidal composition including Acephate and one or more N-alkyl-2-pyrrolidones, and methods for stabilizing and inhibiting decomposition of Acephate by adding one or more N-alkyl-2-pyrrolidones to Acephate. The storage stability of Acephate bulk or Acephate in an Acephate-containing liquid pesticidal composition is improved by addition of the N-alkyl-2-pyrrolidone(s).
摘要:
Microencapsulated pyrethroidal cockroach-controlling composition is provided, which has an excellent residual effect. The composition comprises phenylxylylethane and a pyrethroidal compound and is encapsulated in microcapsules formed of a polyurethane wall which have an average particle diameter of not more than 80 .mu.m, a wall thickness of not more than 0.3 .mu.m, and a value of the average particle diameter/wall thickness of 100-400.
摘要:
There is disclosed an insect growth regulator composition comprising (a) an insect growth-regulating active ingredient and, if necessary, another insecticidal active ingredient, (b) an organic substance having a solubility of not greater than 2% in water at 20.degree. C. and a melting point of 35.degree. through 100.degree. C., and (c) a glycol selected from the group having a melting point of 35.degree. through 100.degree. C. and consisting of polyethylene glycol, polyoxyethylene polyoxypropylene glycol, polyoxyethylene polyoxybutylene glycol, and polyoxyethylene polyoxypropylene polyoxybutylene glycol, wherein the weight of the constituent (b) is equal to or greater than 3% based on the total weight, and a sum of the weight of the constituent (b) and the weight of the constituent (c) ranges from 20 to 98% based on the total weight, the constituent (b) and the constituent (c) being molten and then cooled to be solidified in manufacturing process of the insect growth regulator composition. The composition of the invention is the labor- and cost-saving composition because it releases an active ingredient gradually, and exterminates harmful and/or offensive pests and prevent the breeding thereof in water systems over a long time.
摘要:
A dry pesticidal composition of a toxicant having a melting point in a range of from 0.degree. C. to 65.degree. C. (the said range of melting point applies also to the melting point of a mixure of toxicants) containing a hydrocarbon represented by the formula, ##STR1## wherein X.sub.1, X.sub.2, Y.sub.1, Y.sub.2, Z.sub.1 and Z.sub.2, which may be the same or different represent a hydrogen atom or an alkyl group having 2 or less carbon atom, R.sub.1 and R.sub.2, which may be the same or different, represent a hydrogen atom or a methyl group, and n represents 0 or 1.
摘要:
There are discolsed a pesticidal composition containing a water-insoluble alginate, which is prepared by treating a solid composition containing (a) a pesticidally active ingredient which is a pest-controlling active ingredient or a plant growth-regulating active ingredient and (b) an alginic acid or a water-soluble alginate with an aqueous solution containing a divalent or polyvalent cation which can convert said alginic acid or water-soluble alginate into a water-insoluble alginate. Also disclosed is a pesticidal composition containing a water-insoluble alginate, which is prepared by coating a solid substance containing the pesticidally active ingredient with a water-insoluble alginate. The composition of the invention has excellent sustained-release effects of the pesticidally active ingredient.
摘要:
Microencapsulated pyrethroidal cockroach-controlling composition is provided, which has an excellent residual effect. The composition comprises phenylxylylethane and a pyrethroidal compound and is encapsulated in microcapsules formed of a polyurethane wall which have an average particle diameter of not more than 80 .mu.m, a wall thickness of not more than 0.3 .mu.m, and a value of the average particle diameter/wall thickness of 100-400.
摘要:
Termites are prevented by applying thereto microencapsulated organophosphorus termite controlling composition in an amount of 5-100 g as an effective ingredient. The composition comprises an organophosphorus insecticidal compound encapsulated in a microcapsule formed of a polyurea or polyurethane wall and having an average particle diameter of not more than 80 .mu.m, a wall thickness of 0.1-1 .mu.m, and a value of the average particle diameter/wall thickness of 20-400.
摘要:
A solid pesticidal formulation, such as wettable powders, water dispersible granules and water soluble formulations, enveloped in a water soluble substance, such as polyvinyl alcohol and so on, wherein the solid pesticidal formulation comprises at least one water soluble hydroxy compound selected from the group consisting of alkanols, alkylene glycols, glycol monoethers, tri- or more valent alcohols, alcoholamines, hydroxyfatty acids and hydroxyfatty acid esters, or water soluble glycol ether acetates is excellent in stability after preserved.