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．
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, 1(12): 91-95.
WANG Yong,YANG Fan,ZHOU Lilin，LUO Haibo，SI Shengyun，WANG Pan. Laboratory Toxicity of Spinetoram Against Eggs and Larvae of Spodoptera frugiperda in Wuhan. China Vegetables, 2023, 1(12): 91-95.
