秋冬季是果树病虫害的休眠期,也是防治各种病虫害的好时期。这个时期要集中消灭各种病菌,控制病源。要消灭各种害虫的虫卵、蛹、幼虫、成虫,减少虫害的越冬基数,具体有以下几种方法: 1.清除落叶。苹果的褐斑病、灰斑病,梨的黑星病、白腐病,葡萄的炭疽病、黑痘病等真菌性病害的病 Autumn and winter dormant period of pests of fruit trees, but also a good period of prevention and control of various pests and diseases. This period should focus on the elimination of various germs, control of the source. To eliminate a variety of pests eggs, pupae, larvae, adults, reduce the pest base of winter, there are several specific ways: 1. Clear leaves. Brown spots of apple, gray spot, pear scab, white rot, anthracnose of grapes, acne and other fungal diseases