“刮皮”也是对果树进行管理的一项主要内容,只不过这项措施主要是针对成年、壮年、老年果树罢了。“刮皮”就是用刮皮刀将果树的主干、大枝、枝叉上的老翘皮、粗皮、干皮刮去。许多果树害虫越冬场所都在果树的翘皮缝、粗皮、干皮缝、枝叉缝里,如山楂红蜘蛛、梨小食心虫、苹果小卷叶蛾等。通过“刮皮”这一措施,可以消灭许多越冬害虫的成虫、卵或幼虫,从而大大减轻来年果树的这类虫害,也减少了生长季节的喷药次数。再者,由于冬季果树腐烂病菌是一种兼性害生菌,具有较明显的潜 “Guapi ” is also a major component of the management of fruit trees, except that this measure is mainly aimed at adult, mature and old trees. “Guapi ” is to use a skin knife to the trunk of the fruit trees, big branches, branches on the old Alice skin, rough skin, dry skin scrape off. Many fruit pests wintering places are in the kiwi fruit seam, bark, dry skin cracks, branches and crevices, such as hawthorn red spider, pear borer worms, apple leaf roller moth and so on. Through the “skin scraping” this measure, you can destroy many adult pests insects, eggs or larvae, thus greatly reducing the pests of fruit trees in the coming year, also reduced the number of spraying the growing season. In addition, due to the winter fruit rot bacteria is a facultative pest, has a more obvious potential