介壳虫——是附生在花木枝、叶、花,果上的害虫,虫体外覆有蜡质外壳.呈白色、黄褐色、深紫色或红色,形态各不相同,有的象鱼鳞,有的象弹丸,有的象棉籽或粉团。习性也各不相同,有的能缓缓爬行,有的幼小时能爬行,长大后却固定取食,介壳虫个体虽小,但数量极多,密集成片.以针状口器取食植物营养,使花木枯黄而死。介壳虫还能排出一些糖质粘液,引诱黑霉菌寄生,使枝叶发黑,失去观赏价值。 Scale insects - is attached to the flowers in the branches, leaves, flowers, fruit pests, parasites covered with a waxy shell was white, brown, dark purple or red, different shapes, and some like fish scales, there Like a projectile, some like cottonseed or dough. Habits are also different, and some can crawl slowly, and some young can crawl, but grow fixed after feeding, although small scale insects individual, but a very large number, dense into pieces. Plant nutrition, so that flowers dead yellow. Scale insects can also discharge some of the sugar mucus, lure black mold parasites, black leaves, loss of ornamental value.