梨象鼻虫是梨树的主要害虫之一,它为害幼果,啃食果肉、于果内产卵,甚至咬掉幼果,使梨果的质量、产量受到很大的影响。为了经济有效地防治象鼻虫,我们抓住其越冬成虫于春天出土的特点,进行了出土前树下盖地膜试验,以期把其消灭在出土为害之前 Pear weevil pears is one of the major pests, which damage young fruit, eating grasping fruit, spawning in the fruit, and even bite young fruit, so that the quality of pear, the yield is greatly affected. In order to economically and effectively control weevil, we grasp the characteristics of its overwintering adult in spring unearthed, carried out before the excavated tree cover film test, in order to destroy it before unearthed damage