苹果园病虫防治四要点根据笔者近几年的实践经验，欲搞好苹果园的病虫害防治，必须抓好以下四点：１．冬季主要抓清园。由于果树多数病菌、害虫在园内越冬，所以冬季果树落叶后，要及时进行清园。将树叶进行深埋，落叶归根，将病枝、病皮集中烧毁，还可进行浅刨树盘，以清... Apple orchard pest control four points According to the author’s practical experience in recent years, want to do a good job in apple orchard pest control, must grasp the following four points: 1. Mainly in Qingyuan Qingyuan. As the fruit of most bacteria, pests in the garden over winter, so winter fruit trees after deciduous, should be carried out in time Qingyuan. The leaves will be buried deep, deciduous roots, the diseased branches, diseased skin concentrated burned, but also for shallow planing tree tray to clear ...