卵孢白僵菌与农药的复配剂对甜菜夜蛾的毒力测定  

Effect of the Mixture of Common Pesticides with Beauveria tenella Against Spodoptera exigua

作　　者：李春香[1] 崔也平[2] 张英英[1] 

机构地区：[1]唐山师范学院生命科学系,河北唐山063000 [2]华北煤炭医学院临床医学系,河北唐山063000

出　　处：《北方园艺》2009年第7期75-78,共4页Northern Horticulture

基　　金：唐山市重点实验室资助项目(04360701B-4)

摘　　要：比较6种杀虫剂和3种杀菌剂与卵孢白僵菌的相容性,筛选出4种杀虫剂甲维盐、除尽、铁沙掌和康夫,用这4种杀虫剂的亚致死剂量和次亚致死剂量分别与1×107个孢子/mL的菌悬液复配后对甜菜夜蛾进行室内毒力测定。结果表明:第2天,含甲维盐和除尽的亚致死剂量的复配剂校正防效分别达到了59.9%和90.7%,到第10天均达到了97%以上;含甲维盐和除尽次亚致死剂量的复配剂的校正防效在第2天时分别为49.9%和67.8%,第10天时均达到95%以上。The effects of 6 insecticides and 3 fungicides on the mycelial growth of B. teneUa were investigated. Based on the rusult, four kinds of insecticides including Jiaweiyan,Chujin,Tieshazhang and Kangfu were proved to be more compatible with B. tenella than others. The mixtures of the 1/5 or 1/10 conventional of the 4 insecticides respectively with the suspension of B. tenella at the concentration of 1 × 10^7 spores/mL were tasted against Spodoptera exigua. The result indicated that the virtue of the mixture at 1/5 deadly concentration had better effective than that at 1/10. Besides, the former had a higher defensive effect than the latter. Two days after treatment, the controlling effect of the mixture con- taining Jia weiyan and Chujin at 1/5 deadly concentration increase to 59. 9% and 90. 7%, while the mixture at 1/10 deadly concentration increase to 49. 9%~67. 8%. Ten days after treatment, the former controlling effect was up to 97%, while the latter to 95 %.

关 键 词：卵孢白僵菌 化学杀虫剂 生物相容性 复配 

分 类 号：S433.4[农业科学—农业昆虫与害虫防治]