昆虫病原线虫Steinernema longicaudum X-7增效药剂的筛选  

Screening of insecticides as synergists for entomopathogenic nematodes Steinernema longicaudum X-7.

作　　者：张中润[1] 曹莉[2] 刘秀玲[2] 王果红[2] 许再福[1] 韩日畴[2] 

机构地区：[1]华南农业大学资源环境学院昆虫学系,广州510642 [2]广东省昆虫研究所,广州510260

出　　处：《昆虫知识》2006年第1期68-73,共6页Entomological Knowledge

基　　金：欧盟第五框架国际合作项目(ICA4-CT-2001-10003);广东省自然科学基金重点项目(036692)。

摘　　要：测试了19种昆虫生长调节剂、植物源或病毒类药剂对昆虫病原线虫Steinernema longlcaudum X-7的存活和侵染率的影响。筛选9种对线虫存活和侵染率均无影响的药剂，测定其与线虫混用对黄粉虫Tenebrio molitor L．9～11龄幼虫的交互作用。结果显示，各种参试药剂和线虫组合均表现为相加作用。为了进一步确定参试药剂与线虫混用对目标昆虫卵圆齿爪鳃金龟Holotrichia ovata Chang 3龄幼虫的交互作用，本研究选择氟虫脲、除虫脲、灭幼脲、苦参碱、氟啶脲和虫酰肼在低浓度下与线虫混用，除虫脲与线虫混用对测定昆虫处理7d后表现为增效作用，其它药剂与线虫则表现为相加作用；各种参试药剂与线虫组合处理14d后均表现为相加作用。To screen synergists for entomopathogenie nematode Steinernema longicaudum X-7 to control the target grub Holotrichia ovata Chang, the effects of insecticides on survival and infectivity of S. loagicaudum X-7 were determined. Insecticides without adverse effects on survival and infectivity were mixed with S. loagicaudum X-7 respectively to treat the 9th～ 11th instars of Tenebrio molitor L. No synergistic interaction was found in all combinations of test insecticides and S. longicaudum X-7. The combinations of insecticides flufenoxuron, diflubenzuron, ehlorbenzuron, matrine, chlorfluazuron or tebufenozide and S. longicaudum X-7 were tested for control of target insects, third instars while of H. ovata. After 7 days the synergistic interaction between diflubenzuron and S. longicaudum X-7 was observed, while combinations of other insecticides and S. longicaudam X-7 only resulted in additive mortality, After 14 days no synergistic interaction was observed.

关 键 词：昆虫病原线虫 Stelnernema longicaudum X-7 增效 黄粉虫 卵圆齿爪鳃金龟 

分 类 号：S482.398[农业科学—农药学]