摘要:
A plant viral disease preventive composition contains an alginate, as active ingredient, having properties of:(a) neutralization degree of 10 to 30%, said neutralization degree (wt %) being given from: ##EQU1## where (C.sub.5 H.sub.7 O.sub.4 COOH).sub.n is the molecular formula of the alginate, m is the number of the carboxylate groups in one molecule of the alginate, and M is an alkali metal or ammonium group; and/or(b) viscosity in a 1 wt % aqueous solution at 20.degree. C. is 2 to 10 centipoises.
摘要翻译:植物病毒病预防组合物含有藻酸盐作为活性成分,具有以下性质:(a)中和度为10〜30%,所述中和度(wt%)为:其中(C 5 H 7 O 4 COOH)n为 藻酸盐的分子式,m是一分子藻酸盐中的羧酸酯基团的数目,M是碱金属或铵基团; 和/或(b)在20℃的1重量%水溶液中的粘度为2至10厘泊。
摘要:
Chemicals containing an effective amount of homopolymers of dialkylaminoalkyl acrylate derivatives or dialkylaminoalkyl methacrylate derivatives or copolymers of such derivatives with ethylenically unsaturated monomers copolymerizable therewith. The chemicals exhibit a remarkable effect of preventing agricultural plants from being infected with plant virus diseases. A method for controlling the plant virus diseases is also described.
摘要:
Chemicals containing an effective amount of a polymer of a specified salt of diallylamine derivative and/or a diallyl quarternary ammonium salt exhibit a remarkable effect of preventing agricultural plants from being infected with viral diseases in plants. A method for controlling viral diseases in plants by using an effective amount of such polymer is described.
摘要:
This invention relates to fungicidal novel derivatives of 6-(3,5-dichlorophenyl)perhydroimidazo[5,1-b]thiazole derivative. These compounds may be used for controlling fungal infection, especially in agriculture.
摘要:
There is disclosed a fungicide comprising, as the active ingredient, a 1,2-alkylene-4-(3',5'-dichlorophenyl) urazole derivative suitable for preventing various diseases of plants including fruit trees, vegetables, rice plants and beans.
摘要:
There is disclosed a fungicide comprising, as the active ingredient, a 1,2-alkylene-4-(3',5'-dichlorophenyl) urazole derivative suitable for preventing various diseases of plants including fruit trees, vegetables, rice plant and beans.
摘要:
N-(4-fluorophenyl)-2,3-dichloromaleimide of uniform grain size is produced either by reacting 2,3-dichloromaleic acid, an anhydride or an ester thereof with 4-fluoroaniline in an aqueous medium or by dehydrative-cyclization of either N-(4-fluorophenyl)-2,3-dichloromaleamic acid or 4-fluoroanilinium 2,3-dichloromaleate in an aqueous medium. The N-(4-fluorophenyl)-2,3-dichloromaleimide of uniform grain size provides improved fungicidal activity and is convenient for preparing an agricultural fungicidal composition.
摘要:
There is disclosed a fungicide comprising as active ingredient a 1,2-substituted-4-(3',5'-dichlorophenyl) urazole derivative suitable for preventing various diseases of plants including fruit trees, vegetables, rice plants and beans.