冬季果树刮皮是一种保护树体的得力措施,它既可以减少老树皮对树干木质部的压力,加速树干组织的细胞分裂,又有利于树皮更新再长,同时还有利于消灭许多潜藏在翘皮、裂缝里体眠的越冬害虫蛹、卵、幼虫、成虫和病菌孢子。据测验表明:冬季在各种果树翘皮缝隙中越冬的害虫有梨小食心虫、梨蝽象、苹果小食心虫、柳毒蛾、枣粘虫、卷叶螨类、桃蚜、红蜘蛛等20多种。冬季刮除翘皮、老朽皮后可消灭80％—90％的粘虫、梨星毛虫,60％—80％的苹果和梨小食心虫,70％—80％的苹果、山楂红蜘蛛幼虫,90％以上的苹果夜敌潜叶蛾。同时经过重刮皮后还可有效防治苹果树腐烂病,且无需用药即可杀死各种虫卵、蛹等及各种病菌孢子。 果树冬季刮皮在土壤结冻后至惊蜇前这段时间内均可进行,以12月初至来年2月期间为适宜时间。冬刮树皮掌握:气候较温暖没有果树冻害的地方,刮皮时间可适当早 Winter fruit tree scraping the skin is a kind of effective measures to protect the tree, which can reduce the old tree bark xylem pressure to accelerate the trunk tissue cell division, but also conducive to bark renewal and longer, but also help eliminate many hidden Overwintering insect pests, eggs, larvae, adults, and pathogen spores that sleep in the skins and crevices. According to the tests, more than 20 kinds of pests such as pest, pear stink bug, apple pest moth, juvenile appleworm, spider mite, peach aphid and spider mite were found in wintering gaps in winter in various fruit trees. . Winter scraping of the skins and decay skin can kill 80% -90% of armyworms, pear-shaped caterpillars, 60% -80% of apples and pears, 70% -80% apples, hawthorn spider mites, 90 % Apple night enemy leaf moth. At the same time after the curettage skin can also effectively prevent apple tree rot disease, and without medication to kill a variety of eggs, pupae and a variety of bacteria spores. Fruit tree winter skin scraping in the soil after freezing to jellyfish this period of time can be carried out in early December to February next year as the appropriate time. Winter scraping bark grasps: the climate is warmer No fruit trees frost harm, the scraping time may be appropriate