自然界昆虫种类繁多,生活习性各异。在昆虫的生活周期中,其不同时期的生活习性各有特点,不同种类的昆虫,其越冬场所、越冬方式和习性各有差别。有的昆虫以成虫越冬,有些以卵越冬,有些以幼虫或若虫越冬,还有些以蛹越冬。林果树木害虫多数在树皮 A wide range of natural insects, different habits. In the insect life cycle, its different periods of life habits have their own characteristics, different types of insects, their overwintering places, overwintering ways and habits are different. Some insects overwinter as adults, some overwintering with eggs, some overwintering with larvae or nymphs, and some overwintering with pupae. Most fruit trees and pests in the bark