斜纹夜蛾Prodenia litura(Fabricius)是1种喜温性害虫,发育适温为25～30℃。我市7～9月盛夏期间,气温多在35℃以上,阳光直射的菜士表面温度多在38℃以上,局部温度可在40℃以上。如此高温,斜纹夜蛾幼虫何以度过炎夏?更何以在此期间造成严重危害?经观察发现。(1)藏身于植株器宫、组织内。豇豆的 Spodoptera litura Prodenia litura (Fabricius) is a kind of temperature-sensitive pests, the development of suitable temperature 25 ~ 30 ℃. During the summer of July to September, the temperature in our city is more than 35 ℃. The surface temperature of direct sunlight cooker is more than 38 ℃, and the local temperature can be above 40 ℃. So high temperature, Spodoptera frugiperda larvae spend the summer? Why not cause serious harm during this? Found by the observation. (1) hiding in the plant Palace, tissue. Cowpea