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蚜虫又叫腻虫,体小,数量多。在北京地区发生非常普遍,几乎每种园林植物上都有蚜虫的为害。由于其繁殖快,数量多,常常对园林植物造成严重的危害。一类喜欢为害嫩捎嫩叶,造成嫩叶卷曲或绉缩成团。嫩梢弯曲抑制生长,如栾树蚜虫,木槿绵蚜等;一类喜欢为害老叶枝条,造成枝、叶淌水,并易引起煤污病,影响树木的呼吸和光合作用,早春极易风
Aphids, also called Trichomonas, small body, the number of more. Occurred in Beijing is very common, almost all kinds of garden plants have aphid damage. Because of its rapid propagation, the number of more often cause serious damage to garden plants. A category like tender for young leaves, resulting in young leaves curl or crepe into a group. Young shoots inhibit the growth of growth, such as the Luan tree aphids, Hibiscus cotton aphid; a class like to damage the branches of old leaves, causing branches, leaves and water, and easily lead to coal pollution, affecting the respiration and photosynthesis of trees,