棉花黄萎病(Verticillium albo-atrum)是一种毁灭性的病害,在本省有逐渐扩展趋势,在营口、辽阳、黑山等县为害较重,其他植棉县也有所发生,估计一般年成因病减产约20％。本病是靠多种因素傅播的一种维管束病害,病菌生活期长,傅病后的土壤不易根绝,对此病目前世界上还没有很有效的防治办法。过去科学家们主要是从抗病育种、生物防治等方 Verticillium albo-atrum is a devastating disease. It has a trend of gradual expansion in the province, heavy damage in counties such as Yingkou, Liaoyang and Montenegro, and other cotton-planting counties have also occurred. It is estimated that the general annual causative disease Cut about 20%. The disease is a vascular disease by a variety of factors, a long life span of bacteria, Fu after the disease is not easy to eradicate the root cause of the disease in the world there is no very effective prevention and treatment. In the past scientists mainly from disease resistance breeding, biological control and other parties