五倍子富含单宁,是生产单宁酸的重要原料。由于工业的发展,及单宁酸应用领域的扩大,国内市场及外贸出口对五倍子的需求越来越大。这几年有关部门扶持五倍子生产,收购价格也连年上涨,调动了农民发展五倍子的积极性。一、五倍子蚜虫的基本知识在五倍子产区,还有一部分农民认为五倍子是树上结的果。其实,五倍子不是树上结的果,而是五倍子蚜虫寄生在漆树科盐肤木属植 Gallic tannin is rich in tannin is an important raw material. Due to the development of industry and the expansion of tannic acid applications, the demand for gallnut in the domestic market and the export of foreign trade has been growing. In recent years, relevant departments have been supporting the production of gall nuts and their purchase prices have also risen year after year, arousing the enthusiasm of farmers in developing gall nuts. First, the basic knowledge of gallnut aphids In the gallnut producing areas, there are still some farmers that the gall is the result of the tree knot. In fact, gallnut is not the result of the tree knot, but the gall aphids parasitized in the tree tree Rhododendron