中国蔬菜Issue(12)：91-95,5.DOI:10.19928/j.cnki.1000-6346.2023.3058
乙基多杀菌素对武汉地区草地贪夜蛾卵和幼虫的室内毒力评价
Laboratory Toxicity of Spinetoram Against Eggs and Larvae of Spodoptera frugiperda in Wuhan
摘要
Abstract
The laboratory toxicity of spinetoram at different concentration gradients against the eggs and different instars larvae of Spodoptera frugiperda in Wuhan was evaluated using the soak and foliage application methods.The results showed that spinetoram had certain inhibitory effect on the hatching of the eggs of S.frugiperda,and showed high toxicity against newly hatched larvae.The lethal medium concentration(LC50)of spinetoram to 2-4 instars larvae were 0.025,0.070 and 0.269 mg·L-1,respectively.In conclusion,spinetoram can still be used as an emergency chemical control insecticide for S.frugiperda,with a focus on the critical window period of application before the 3rd instar stage.关键词
草地贪夜蛾/乙基多杀菌素/杀卵活性/毒力测定Key words
Spodoptera frugiperda/spinetoram/ovicidal activity/toxicity bioassay引用本文复制引用
望勇,杨帆,周利琳,骆海波,司升云,王攀..乙基多杀菌素对武汉地区草地贪夜蛾卵和幼虫的室内毒力评价[J].中国蔬菜,2023,(12):91-95,5.基金项目
武汉市农业科学院创新体系项目(JCZX202201-3,JCZX202301-2) （JCZX202201-3,JCZX202301-2）
