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入冬以后,天气寒冷,危害果树的害虫和病菌为了度过严寒的冬天,纷纷寻找隐避的地方躲避寒冷,休眠过冬。此时,它们不吃不动,也不繁殖,数量较少,比较集中,防治时间比较充裕(一般在惊蜇节令以前都可以进行),所用的药剂和劳力也比夏秋季节少,防治起来,经费省、效果好。冬季防治果树病虫害,消灭一个越冬害虫或病菌,
After winter, the weather is cold, pests and germs harmful to fruit trees in order to survive the cold winter, have to find the place to avoid the cold to avoid winter sleep. At this time, they do not eat nor reproduce, the quantity is small, the concentration is relatively abundant, and the time for prevention and control is generally enough (usually before the start of the jingling season). The medicaments and labor used are also less than those in summer and autumn, Provincial funding, effective. Prevention and control of pests and diseases in winter, the elimination of a wintering pests or germs,