蚜类害虫:入冬后彻底刮除果树的老树枝皮,清除树体上的残附物,剪除蚜害枝条后集中烧毁,可消除为害果树的蚜虫、梨二叉蚜、黄粉蚜等多种蚜虫的越冬虫卵;果树早春发芽前,向果树均匀喷雾5%柴油乳剂,不仅能灭杀在果树上隐匿越冬的苹果蚜虫、梨二叉蚜、黄粉蚜及桃蚜的越冬虫卵,且对? Aphids pests: After the winter scrape the old tree branches completely skin, remove the debris on the tree, cut off the branches of aphids after the concentration of burned to eliminate the damage of fruit trees aphids, pear aphids, yellow aphid and many other Aphids overwintering eggs; fruit trees in early spring before germination, fruit trees evenly sprayed 5% diesel emulsion, not only can be killed in the fruit trees overwintering apple aphids, pear aphid, yellow aphid and Myzus persicae overwintering eggs, and ?