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枯萎病是西瓜栽培中最重要的病害之一,为了解决这一难题,近年来,郸城县大面积推广了西瓜嫁接栽培技术,取得了较好的防治效果。但在生产中仍有部分嫁接后的西瓜植株发生枯萎病为害,发病率在10%以上。发病原因归纳起来,大致有以下几种情况,需要在今后的生产实践中加以注意和预防。1嫁接后的发病原因1.1种子带菌西瓜枯萎病是由尖孢镰刀
Fusarium wilt is one of the most important diseases in the cultivation of watermelon. In order to solve this problem, in recent years, a large area of Dancheng County popularized the cultivation technology of watermelon grafting and achieved good control effects. However, in the production of watermelon plants after grafting still some of the wilt disease, the incidence of more than 10%. The causes of the disease sum up, there are roughly the following situations, the need for future production practices to pay attention to and prevention. 1 The pathogenesis after grafting 1.1 Fusarium wilt disease caused by watermelon is a sporotrichosis