摘要
为了证明多杀菌素对蔬菜害虫的杀虫效果,分别采用点滴法和浸叶法测定了多杀菌素对棉铃虫、甜菜夜蛾和小菜蛾的毒力。结果表明:点滴法测定多杀菌素对棉铃虫、甜菜夜蛾的触杀毒力较高,LD50值最高仅为0.6μg·larva-1。浸叶法测定多杀菌素对小菜蛾的LC50最高为1.39mg·L-1。
Toxicity of spinosad against vegetable pests in Tai＇an including Helicoverpa armigera （Hubner）, Spodoptera exigua （Hubner） and Plutella xylosteUa （Linnaeus） has been determinated by topical application and leaf-dipping method, respectively. Very highly contact toxicity of spinosad against H. armigera and S. exigua was found and the highest LD50 value was just 0.6 μg·larva^-1. The highest LC50 value of spinosad to P. xylostella was 1.39 mg·L^-1.
出处
《农药研究与应用》
2009年第1期27-29,共3页
Agrochemicals Research & Application
关键词
多杀菌素
棉铃虫
甜菜夜蛾
小菜蛾
毒力测定
spinosad
Helicoverpa armigera
Spodoptera exigua
Plutella xylostella
determination of toxicity
