河北省二点委夜蛾各代寄主田调查  

Research on Host Fields of Generations of Athetis lepigone

作　　者：许昊 吕书亮[2] 李秀芹[2] 姜京宇[2] 马继芳[3] 许佑辉 

机构地区：[1]河北省植保植检站,河北石家庄050011 [2]河北省农药检定所,河北石家庄050011 [3]河北省农林科学院谷子研究所,河北石家庄050035

出　　处：《河北农业科学》2012年第12期8-11,共4页Journal of Hebei Agricultural Sciences

基　　金：河北省科技厅项目(11220301D)

摘　　要：二点委夜蛾是一种新发现的重大玉米害虫,1 a发生4代。2代幼虫(主害代)发生期是6月～7月上旬,为害夏玉米苗;但其余3代幼虫的寄主尚未明确。2012年通过定点系统调查和大田普查的方法,调查了二点委夜蛾各代(包括1代幼虫)的寄主情况。结果表明:1代幼虫寄主作物田主要为小麦田;三四代幼虫寄主作物田除夏玉米外,主要发生在花生、大豆、甘薯等多种作物田。A. lepigone is a newly discovered major corn pest, there are 4 generations generation larvae （the main damage generation ） occurs from June to early July, seedlings. But the host fields of larvae of the other three generations had not been cleare in one year. The second damaging summer maize d. The host fields of each generation （including the first generation） of A. lepigone was investigated in 2012 by the system investigation and field investigation. The results showed that the crop genenration was wheat, and the third and fourth host fields were many kinds soybean, sweet potato fields and so on besides corn field. main methods of fixed-point host field of the first of crop fields such as peanut,

关 键 词：二点委夜蛾 寄主作物田 调查 

分 类 号：S435.132[农业科学—农业昆虫与害虫防治]