果树冬季刮皮不仅可以恢复树势,还可以消灭潜藏在果树粗皮、翘皮或裂缝中越冬的梨小食心虫、苹小卷叶蛾、红蜘蛛、枣粘虫等果树害虫;同时对树干上的病斑进行刮治,可有效防治腐烂病、轮纹病。 一般对10年生以上的梨、苹果、石榴等树每2～3年刮皮一次。可于12月份到次年的2月份进行,刮皮时应把主干和大骨干枝上的粗皮都刮除。刮皮的深浅,以把老皮刮下为度,切忌过深,以防影响果树生长,以及遇冷遭受冻害。苹果、桃、杏、李等果树的树皮较薄,宜轻刮浅刮,梨、枣、石榴树的树皮较厚,可适当深刮、重刮,以见到红色皮为宜。对于树干上的腐烂、轮纹病斑.则应重点刮治,将病斑坏死组织连 Fruit tree winter skin scraping can not only restore the tree vigor, but also eliminate the hidden in the fruit bark, skins or cracks in the winter pest moth, apple leaf roller, spider mite, jujube armyworm and other pests; at the same time on the trunk of the lesion Scraping can effectively prevent rot disease, rotten grain disease. Generally 10 years of pears, apples, pomegranate and other trees every 2 to 3 years scraping the skin once. May be carried out in December from December to February of the following year, scraping the skin of the main trunk and the big bones should be scraped off. Shaving the skin to shave the old skin for the degree, should not be too deep, to prevent the growth of fruit trees, and suffered cold damage in case of cold. Apples, peaches, apricots, plums and other fruit trees bark thin, should scratch light scratch, pear, jujube, pomegranate tree bark thicker, may be appropriate deep scraping, heavy scraping, to see the red skin is appropriate. For the rot on the trunk, round pattern lesion should focus on cure, necrosis of the lesion with even