五倍子,即由半翅目蚜科(Aphididae)的角倍蚜寄生在盐肤木(Rhus chinensis Mill.)上,危害叶组织所造成的一种病理产物——虫瘿的总称。五倍子主要成分为单宁酸,是医药,化工、印染和国防上的重要原料。目前,我国的五倍子按外形可分为十余种,其中以角倍蚜分布最广,产量最高。角倍蚜亦称五倍蚜(Schlechtendalia chinensis Bell),一年有六个世代,终年生活,无休眠阶段。成虫有有翅型及无翅型两种,当盐肤木快落叶之 Chinese nutgall, which is parasitic on Rhus chinensis Mill. By the hornbug Aphididae from the family Aphididae, harms the general designation of gallstone, a pathological product of leaf tissue. The main component of gallnut is tannic acid, which is an important raw material in medicine, chemical industry, printing and dyeing and national defense. At present, China’s gallnut by shape can be divided into more than ten species, of which the angular spread of aphids the most widely, the highest yield. Aphis gossypii, also known as Schlechtendalia chinensis Bell, has six generations a year, lives all year round, and has no sleep stage. Adults have winged and wingless type two, when the salt skin wood quickly deciduous