贵溪和金溪林区马尾松毛虫抗药性监测  

Monitoring of Insecticide-Resistance of Dendrolimus punctatus Walker in Guixi and Jinxi Forests

作　　者：张金波[1] 彭龙慧[1] 罗俊根 龙伟 杨斌[1] 唐春发[1] 汪辉武[1] 

机构地区：[1]江西农业大学,南昌330045 [2]江西省森林病虫害防治局,南昌330077

出　　处：《江西植保》2008年第1期19-21,共3页Jiangxi Plant Protection

基　　金：江西省自然科学基金项目(赣科基办字[2005]3号)

摘　　要：本文对贵溪和金溪两地马尾松毛虫种群进行毒力测定,结果表明溴氰菊酯对贵溪马尾松毛虫种群的LD50与1994年相比下降了87.66%,贵溪马尾松毛虫种群对溴氰菊酯已由低抗水平下降为耐药性差异。比较氯氰菊酯对贵溪和金溪两马尾松毛虫种群的毒力,可知贵溪和金溪马尾松毛虫种群对氯氰菊酯一直处于耐药性水平范围,贵溪马尾松毛虫种群对氯氰菊酯的耐药力比金溪种群强。The contact toxicities of two pyrethroids to two populations of Dendrolimus punctatus were tested by using microcapillary topical application methods in this paper. The results showed that the LD50 of deltarnethrin to Guixi population decreased 87.66% in 2007 compared with that in 1994, and the deltamethrin-resistance level of Guixi population changed from lower deltamethrin-resistance to deltamethrin-tolerance. Compared with the contact toxicity of cypermethrin to Guixi Dendrolimus punctatus population with Jinxi population, we could find that the two populations of Dendrolimus punctatus were in the state of cypermethrin-tolerance, and the tolerance level to cypermethrin of Guixi population was higher than Jinxi population in Jiangxi province.

关 键 词：马尾松毛虫 抗药性 拟除虫菊酯杀虫剂 

分 类 号：S763.421[农业科学—森林保护学]