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大袋峨Cryptotheleavariegata（Snellen）是目前我国主要的森林害虫之一，近年在河南、安徽、山东、江苏等省的泡桐基地泛滥成灾，严重影响了林木的生长。现将其变温下的有效积温的研究结果整理如下。（一）经观察测定，大袋蛾的卵期、幼虫期、蛹期及其历期温度列于表l～羊（雄
Snellen is one of the major forest pests in our country. In recent years, the poplar base in the provinces of Henan, Anhui, Shandong and Jiangsu has been flooded and seriously affected the growth of forest trees. Now its variable temperature effective accumulated temperature results are summarized below. (A) The observation determined that the egg stage, larval stage, pupal stage and temperature of the larvae of the moths are listed in Table l ~ sheep