根据果树的生长规律，尤其是落叶果树入冬前即已全部落叶而进入休眠状态，直到次年春开始萌芽为止。此期果树病虫亦进入越冬阶段，这是一年当中防治病虫害的重要时期，而往往容易被人们忽视。由于病虫的越冬场所较集中J初越冬病虫或次春气温回升病虫复苏时其抗逆能力弱，易于防 According to the law of the growth of fruit trees, especially deciduous fruit trees have fallen into the dormant state before winter, until the next spring began to sprout. Pests and diseases of this period also entered the winter stage, which is an important period of pest control during the year, and often easily overlooked. As the pests and parasites overwintering places more focus on early winter pests or the next spring temperature rise pest recovery when its resilience weak, easy to prevent