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近年来，福建省古田县丝瓜栽培面积不断扩大，２００１年全县栽培面积超过６２０hm２。丝瓜栽培面积扩大后，丝瓜病毒病也随之加重，特别是２００１年春季病毒病流行为害之重是历年来罕见的，造成严重减产和经济损失。为了控制丝瓜病毒病的发生和蔓延，笔者对该病的流行情况、?
In recent years, the area of loofah cultivation in Gutian County of Fujian Province has been continuously expanding. In 2001, the cultivated area of the county exceeded 620hm2. Loofah cultivation area expanded, the loofah virus disease also will be aggravated, especially in the spring of 2001, the weight of the virus epidemic is rare over the years, causing serious losses and economic losses. In order to control the occurrence and spread of loofah virus disease, the author of the epidemic situation?