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西瓜枯萎病[Fusarium oxysporum(Schlecht.)f.sp.niveum(E.F.Smith)Snyd.& Hans.]是一种顽固的土传病害。邹城市近几年西瓜生产发展很快,但因种植集中,重茬较多,枯萎病发生严重。一般病田减产30~40%,重病田减产80%以上。自1986年以来,我们对该病发生与防治进行了系统研究,取得了显著的防治效果。一、发病规律通过连续4年普查及定点系统调查表明,西瓜枯萎病发生流行主要取决于品种抗性、病残体、轮作年限及施肥状况。
Fusarium oxysporum (Schlecht.) F. Sp. Niveum (E.F. Smith) Snyd. & Hans.] Is a stubborn soil-borne disease. Zoucheng watermelon production in recent years the rapid development, but due to planting concentrated, more stubble, wilt disease serious. General disease reduction of 30 to 40%, severe disease reduction of more than 80%. Since 1986, we have conducted a systematic study on the occurrence and prevention of the disease and have achieved remarkable prevention and cure effects. First, the incidence of disease Through 4 consecutive years of census and sentinel system survey showed that the prevalence of watermelon blight mainly depends on the variety resistance, disease residual body, crop rotation and fertilization status.