小麦蚜虫在我省曾于1952、1960、1964、1966、1970年大发生成灾,发生面积都在一千万亩左右。特别是在1964年以后,经研究证明,麦蚜除直接为害小麦外,还传播小麦黄矮病的病毒,因之麦蚜的大发生年多引起黄矮病的大流行,造成大面积麦田的严重减产。1966年和1970年在我省有着沉重的教训。我省为害小麦的蚜虫有二叉蚜、长管蚜、缢管蚜三种。其中以二叉蚜为害力强,传病毒 Wheat aphids in the province had in 1952, 1960, 1964, 1966, 1970 occurred in the disaster area occurred in about 10 million mu. Especially after 1964, the research shows that wheat aphid not only directly infects wheat, but also transmits the virus of wheat yellow dwarf virus. Because of the large occurrence of wheat aphid, it will cause the epidemic of yellow dwarf disease more and more, resulting in a large area of ​​wheat Serious cuts. 1966 and 1970 in our province have a heavy lesson. Aphids infected wheat in our province have aphids, long-aphids, aphids three. Among them, the Aphis gossypii is very harmful and transmits viruses