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通过3a的林间定株定期调查和养虫网室内观察,总结出杨白潜叶蛾幼虫和蛹在林间发生规律和在树冠内的空间分布规律。杨白潜叶蛾第3～5代幼虫期是全年危害高峰期。经大量调查发现,幼虫在树冠的上、中、下和枝条不同部位的发生量不同;蛹在树冠上、中、下部,树冠东、南、西、北4个方位均无显著差异,在枝条的不同部位有显著差异。采用仿生物杀虫剂5%杀铃脲SC 0.067%～0.05%药液喷施树冠效果最好。
According to the regular surveys of the inter-plantations of 3a and the indoor observations of the rearing insects, the regularities of larvae and pupae larvae and pupae in the forest and spatial distribution patterns in the canopy were summarized. Yang white leaf moth 3rd to 5th larval stage is the annual peak of damage. After a large number of surveys, the larvae in the crown of the upper, middle and lower branches and different parts of the occurrence of different parts; pupae in the upper, middle and lower crown canopy east, south, west and north four azimuths were no significant differences in the branches The different parts of the significant differences. Using biomimetic insecticide 5% triflumuron SC 0.067% ~ 0.05% Spray canopy crown best.