小麦梭条花叶病(WSSMV)是春季小麦田中见病较早的一种新发生的土传病毒病。在我国长江、黄河中下游,西起四川、陕西,东至江浙和山东一带均有分布,危害逐年扩大。河南省信阳地区潢川县七十年代初为零星发病,没有引起重视,1975年发生5.4万亩,1977年扩大12万亩,到八十年代,历年均发生15—20万亩,一般田减产20—40%,最高田减产70—80%。特别是1991年发病35万亩,造成损失的有17万亩,绝收的有5万亩。1970—1991年累计发生面积210万亩,综合防治面积15万 Wheat spar mosaic disease (WSSMV) is a newly emerged soil-borne viral disease with earlier onset of disease in the spring wheat field. In China’s Yangtze River, the middle and lower reaches of the Yellow River, Sichuan, Shaanxi from west to east and Jiangsu, Zhejiang and Shandong are distributed throughout the year, increasing the harm. In the early 1970s, Xichuan County, Henan Province, was sporadic and did not receive any attention. 54,000 mu occurred in 1975 and 120,000 mu was expanded in 1977. In the 1980s, 15-20 million mu land was cultivated over the years, 20-40%, the highest field cut 70-80%. In particular, the incidence of 350000 acres in 1991, resulting in a loss of 170000 acres, 500000 acres of crops. From 1970 to 1991, an area of ​​210 mu was accumulated, with an integrated prevention and control area of ​​150,000