中国生物防治学报2017，Vol.33Issue(6)：739-746,8.DOI:10.16409/j.cnki.2095-039x.2017.06.004
对韭蛆高毒力Bt菌株与常用化学杀虫剂相容性研究
Compatibility of a Bt Srain of High Virulence against Bradysia odoriphaga Larvae with Commonly Used Chemical Pesticides
摘要
Abstract
The compatibility of a Bt strain JQD117 showing high virulence against Bradysia odoriphaga larvae with commonly used chemical pesticides was investigated in terms of pesticide effect on spore germination,growth and virulence of the Bt strain.Test results showed that at high,mediate and low concentrations of the pesticides,the strain could germinate at rates not significantly different from that in the control,and showed no significantly different virulence compared with the blank control.When exposed to the routine application concentrations of the chemical pesticides,the strain produced similar number of living bacteria with the strain on LB medium.When the JQD 117 was mixed with imidacloprid,chlorfluazuron,chlorfenapyr,thiacloprid and beta cypermethrin at low dose,the mixture showed virulence of obvious additive effect;and when the strain was mixed with dinotefuran and clothianidin at low dose,the mixture showed obvious synergy effect.When mixed with clothianidin,dinotefuran,chlorfenapyr at low dose for 3 d,the mixture resulted in adjusted mortalities in B.odoriphaga of 95.45％,90.91％and 90.91％,respectively.Thus,the Bt strain JQD117 has good compatibility with chemical pesticides at routine application concentrations.This research provides prospect for reducing pesticide inputs and safety production.关键词
苏云金芽胞杆菌/化学杀虫剂/韭菜迟眼蕈蚊/相容性Key words
Bacillus thuringiensis/chemical insecticides/Bradysia odoriphaga/compatibility分类
农业科技引用本文复制引用
宋健,曹伟平,杜立新..对韭蛆高毒力Bt菌株与常用化学杀虫剂相容性研究[J].中国生物防治学报,2017,33(6):739-746,8.基金项目
国家重点研发计划(2017YFD0201205) （2017YFD0201205）
河北省财政项目(F17C10008) （F17C10008）
