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新农药克幼脲对小菜蛾和菜青虫的生物活性及防治效果试验

INSECTICIDAL ACTIVITY OF Z-CHLOROBENZOYL PHENYL UREA ON VEGETABLE INSECT PESTS
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摘要 室内测定苯甲酰基苯脲类化合物克幼脲对菜青虫、小菜蛾的致死中浓度分别为9.89ppm和28.44ppm。试验表明,该药剂药效迟缓,但持效期长,可显著降低小菜蛾低龄幼虫的有效转化率。克幼脲与其他化学农药具有良好的相溶性,混剂速灭脲1号,4号的速效性,持效期均优于单剂。 Test of toxicity of 2-chlorobenzoyl phenyl urea to the larvae of diamond back month, Plutella xylostella, and cabbage butterfly,Pieris rapae, was carried out in laboratory. The results indicated that this insecticide can distinctly reduce the survival rate and the larval transformation. 2-chlorobenzoyl phenyl urea can be easily mixed with other insecticides and the mixtures No.1, No.4 show a quicker effect and longer duration than that of a single insecticide on vegetable insect pests. 
出处 《华东昆虫学报》 1997年第2期85-89,共5页 Entomological Journal of East China
关键词 小菜蛾 菜青虫 持效期 混剂 新农药 速效性 试验 生物活性 转化 幼虫 2-chlorobenzoyl phenyl urea, vegetable insect pests, mixture
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