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西瓜枯萎病是由西瓜尖镰孢菌(Fusarium oxysporum f.sp.niveum(E.F.Smith) Wollen. )侵染引起的土传病害。由于该病菌在土壤中存活期长达6年,种子带菌率高,如遇连作地、连阴天,极易诱发此病,并在坐瓜期迅速扩展,严重影响西瓜的产量和品质。目前早春西瓜病害仍依赖于化学防治。为探讨最佳施药方式及选择有效品种,作者于1998～1999年对防治西瓜枯萎病施药技术进行了试验。现总结如下: 材料与方法一、供试药剂 25.9%抗枯灵水剂(山西永合化工有限公司); 70%敌克松可湿性粉剂(浙江嘉兴市中华化工厂); 4%农抗120水剂(四川华宇微生物工程有限公司); 50%多菌灵可湿性粉剂(山东华阳农药化工集团有限公司);
Watermelon wilt disease is a soil-borne disease caused by the infection of Fusarium oxysporum f. Sp. Niveum (E.F. Smith) Wollen. As the bacteria in the soil survival of up to 6 years, the high rate of seed carrier, in case of continuous operation, even the cloudy, easily induced disease, and the rapid expansion in the sit melon period, seriously affecting the yield and quality of watermelon. Early spring watermelon disease is still dependent on chemical control. In order to explore the best application method and select effective varieties, the author conducted experiments on the prevention and control of watermelon wilt disease from 1998 to 1999. Now summarized as follows: Materials and methods First, the test agent 25.9% anti-withered water agent (Shanxi Yong Chemical Co., Ltd.); 70% of the enemy Kesi WP (Zhejiang Jiaxing Chinese chemical plant); 4% agricultural anti- Agent (Sichuan Arima Microbial Engineering Co., Ltd.); 50% carbendazim WP (Shandong Huayang Pesticide Chemical Group Co., Ltd.);