黔西南州薏苡粘虫的危害习性及其气象影响因素

摘要

[目的]了解黔西南州薏苡粘虫的危害习性。[方法]于2015年在黔西南州安龙县对薏苡粘虫进行蛾量、田间卵量、幼虫密度和气象因子影响等的调查。[结果]粘虫对薏苡的危害以第2代为主，6月中下旬为危害盛期，暴雨对粘虫有抑制作用。[结论]调查结果为下一步制定薏苡粘虫的防治措施提供了理论依据。%Objective] To study the damage habits of Mythimna separata (Walker) on Coix lacryma-jobi L.in Qianxinan Prefecture.[Method] In 2015, the number of moths, quantity of eggs, and larval density in field as well as influences of meteorological factors of M.separata (Walk-er) on C.lacryma-jobi L.in Anlong County, Qianxinan Prefecture were investigated.[Result] The second generation of M.separata (Walker) mainly damaged C.lacryma-jobi L., especially in late June, and storm had inhibitory effect on M.separata (Walker).[Conclusion] The re-search can provide theoretical basis for the control of M.separata (Walker) on C.lacryma-jobi L.