一、分布与为害 山核桃(Carya cathayensis Sarg.)是良好的木本食用油料树,盛产于浙江省临安县昌化地区及其周围的淳安、歙县、绩溪、宁国、安吉(孝丰)等地,是产区贫下中农食油的主要来源之一,也是主要的经济收入之一。 山核桃蚜虫,又叫“油虫”,昌北叫“麦虱”。上述山核桃产区都有发生,只是有的年分重,有的年分轻而已,是山核桃的一大害虫,它生有一根细长的针状口器,刺 First, distribution and damage Carya cathayensis Sarg. Is a good woody edible oil tree, rich in Lin’an County, Zhejiang Province, Changhua and its surrounding Chun’an, Juxian, Jixi, Ningguo, Anji (Xiao Feng) Etc., are one of the major sources of oil for the poor peasants in the producing areas and one of the major economic sources. Pecan aphids, also known as “oil insect”, Changbei called “wheat lice.” The pecan producing areas have occurred, but some years of weight, and some years of light only, is a pest of pests, it is born with a slender needle-shaped mouth, thorn