印楝素0.3%乳油的配方优化及田间防效研究

Preparation of 0.3%Azadirachtin EC and Its Field Efficacy

本研究以印楝素为有效成分,松脂基植物油为溶剂,配制了印楝素0.3%乳油。通过对乳化剂、稳定剂等的筛选,优化配方,获得了各项质量控制技术指标合格的印楝素0.3%乳油。田间药效试验结果表明:药后14d,该制剂800倍液对苹果黄蚜的若蚜、成蚜有较好的防治效果,而对苹果黄蚜的天敌瓢虫的成虫、卵、幼虫、蛹以及其他有益生物无害。

In this study,0.3％ azadirachtin EC was prepared using azadirachtin as active ingrediem,turpentine oil as main solvent.The recipe was optimized by screening the adjuvants including emulsifier and stabilizer.Meanwhile,field efficacy trials showed that the 800-fold dilutions had better effects againstboth young and adult yellow aphids onapple trees 14 days after application.And the product did no harm to adults,eggs,larvae,pupae of ladybugs which were predators of yellow aphids and it was also harmless to other beneficial organisms.