“预测预报就是好,病虫发生早知道;抓住关键打巧仗,省工省药效果高.这是群众对测报工作欢欣喜悦的歌颂.本着测报工作中“四化三结合”的方针”,几年来在自治区内对几种主要果树害虫做了一些调查研究,为测报工作积累了一点资料、茲分述如下:一、苹果巢蛾苹果巢蛾在自治区分布不很广泛,但它是食叶性最严重的害虫.此虫一年发生一代,以一龄幼虫在枝条上的卵鞘下越冬.来年幼虫成群以鞘取食,其为害期贯串了苹果花芽开放 “Prediction is good, pests and diseases happen early to know; to seize the key play fights, provincial labor high drug effect .This is the masses delight joy of newspaper praise work. In line with the newspaper work” four of the three combination “approach ”In the past few years in the autonomous region to do some research on several major pests of fruit trees, accumulated a little information for the reporting work, are as follows: First, the apple nest moth Apple nest moth in the autonomous region is not very widespread, but it is The most leaf-eating pests .This worm occurs a generation a year, with the first instar larvae in the branches of the oyster overwinter .In the coming year, the larvae feeding in groups, the damage period runs through the apple flower buds open