9512-1乳油对部分烟草害虫的毒力测定

Toxicity Determination of 1%?9512?1 Emulsifiable Solution Against Part of Pests on Tobacco

95 1 2 1乳油是联华实验室开发的阿维菌素类农用杀虫杀螨剂。室内用浸叶法 ,分别测定了 1 % 95 1 2 1乳油对烟草主要害虫烟青虫、烟蚜的毒力 ,结果表明 1 % 95 1 2 1乳油对供试昆虫有突出的毒杀效果 ,其 2 0 0 0倍液对 2龄和 3龄烟青虫在 72h内死亡率分别达 87.77%、1 0 0 % ;对烟蚜的LC50 值为 0 .33mg/L。田间实验表明 ,1 % 95 1 2 1乳油对烟蚜的防效高于 90 % ,1 5d后可高达 95 .4%

emulsifiable solution developed by Lianhua lab, is an Avermectins Insecticide and miticide for agricultural use. Applied immersion method was to determined the toxicity of it against main pests on tobacco, tobacco budworm ( Chloridea assulta Guene oriental) and green peach aphid ( Myzus persicae Sulzer). The results showed that 1% 9512 1 emulsifiable solution could effectively kill the tested pests, the 2000 times effectiveness of pestidide against budworn 2 stage larvae was 87.77% and 3 stage 100% within 72 hours; The LC 50 of 1% 9512 emulsifiable solution against green peach aphid was 0.33 mg/L. Field test showed that the effectiveness of pesticide against peach aphid was more than 90% and still remained 95.4% after 15 days.\;