南京农业大学学报2011，Vol.34Issue(5)：67-72,6.
几类药剂对大螟的室内毒力测定及田间防效评价
Study on efficacy of several kinds of insecticides on the pink rice borer,Sesamia inferens (Walker), in laboratory and fields
摘要
Abstract
The toxicity of several kinds of chemical insecticides to the eggs, first instar larvae, and third instar larvae of pink rice borer,Sesamia inferens ( Walker), was respectively determined in laboratory conditions. The results showed that the toxicity of avermectins, beta cypermethrin,emamectin benzoate( banleptm)and chlorantraniliprole to the pink rice borer eggs,1st instar larvae, and 3rd instar larvae was evidently better than that of other tested insecticides. The field test showed the similar results that efficacy of dosage 11. 25 g·hm-2 of emamectin benzoate 5% WG was 95. 54% for control of the borer pests and 97. 37% for control of damaged rice white heads (panicles) ,the best among those of the four tested insecticides in paddy,and efficacy of dosage 30 g·hm-2 of chlorantraniliprole 20% SC was 89.61% for control of the borers and 95.33% for control of the rice white heads,much better than that of the control insecticide chlorpyrifos 40%EC at 48 g·hm-2 or monosultap 92. 1%T at 1 200 g·hm-2.关键词
大螟/药剂/毒力/防效Key words
pink rice borer/ insecticide/ toxicity/ control efficacy分类
农业科技引用本文复制引用
冯晓慧,刘宝生,郭慧芳,方继朝..几类药剂对大螟的室内毒力测定及田间防效评价[J].南京农业大学学报,2011,34(5):67-72,6.基金项目
国家水稻产业技术体系项目(nyctx-001) （nyctx-001）
公益性行业(农业)科研专项(200803004) （农业）
江苏省农业科技创新资金重点项目(cx-08-606) （cx-08-606）
