申请人:SUMITOMO CHEMICAL COMPANY, LIMITED
公开号:EP0646314A1
公开(公告)日:1995-04-05
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.
本发明公开了一种含有水不溶性藻酸盐的杀虫组合物,其制备方法是将含有(a) 杀虫活性成分(一种害虫控制活性成分或植物生长调节活性成分)和(b) 藻酸或水溶性藻酸盐的固体组合物用含有二价或多价阳离子的水溶液处理,该阳离子可将所述藻酸或水溶性藻酸盐转化为水不溶性藻酸盐。本发明还公开了一种含有水不溶性海藻酸盐的杀虫组合物,其制备方法是将含有杀虫活性成分的固体物质包覆在水不溶性海藻酸盐上。本发明的组合物具有优异的农药活性成分持续释放效果。