清园是减少病原物、防止侵染性病害的有效措施。近几年被一些果农忽视,很多果园落叶病、腐烂病、红点病、黑点病、康氏粉蚧、螨类、潜叶蛾等病虫害有上升的趋势,有的泛滥成灾,达到了毁园刨树的程度,笔者认为清园必须抓好以下六点:1.锯。对已腐烂无救的大枝,要用手锯去掉,注意锯口要平滑,若有空间可以桥接。2.剪。对病虫死枝要及时剪除,拿到园外,集中烧毁。3.刮。刮就是刮除病皮和死组织,挖除树皮裂缝里的越冬害虫。刮皮时间最好在树液流动时进行,不宜过早或过晚。过早会 Qingyuan is to reduce the pathogen to prevent invasive disease effective measures. In recent years, it has been neglected by some fruit growers. Many pests such as deciduous or rot decay, red dot disease, black spot disease, mealybugs, acarids and leaf moths have been on the rise, and some have become rampant Destruction garden planing tree level, I think the park must grasp the following six points: 1. Saw. To the rot that has not saved the big branch, must use the hand saw to remove, pay attention to the saw mouth to be smooth, if has the space to be possible to bridge. Cut Dead branches on the pests should be promptly cut off, get outside the park, concentrated burned. Scrape Scraping is the curettage of diseased skin and dead tissue, digging over bark pests in the cracks of pests. Shaving time is best to do when the sap flow, not too early or too late. Premature meeting