麦类黄花叶病毒病,是我地区三麦生产上的主要病害,自1973年来连年发生,对三麦(特别是早熟三号大麦和早熟41、114元麦)产量影响较大。 (一)症状:麦类黄花叶病是由土壤中带毒的多粘菌,以休眠孢子堆在病株残根中越夏越冬,进行初次侵染,以游动孢子进行再次侵染。 Wheat yellow mosaic virus disease, is the main disease in the three wheat production in our region, which occurred year after year since 1973 and has a great impact on the yield of three wheat (especially the early maturing three and early maturing 41,114 wheat). (A) Symptoms: wheat yellow mosaic disease is a polymycolallum that is poisoned by the soil. The dormant spores are overwintered in the residual roots of the diseased plants in the summer and are invaded by the zoospores.