近年来，西瓜枯萎病菌引起的西瓜枯萎病害范围逐渐扩大，危害日益突出。
In recent years, watermelon Fusarium wilt has become an increasing threat to watermelon production around the world.
通过对供试菌系致病力测定，河北省西瓜枯萎病菌致病力存在显著差异，致病力最强的菌系是FON31和FON40，致病力最弱的菌系是FON12。
There was significant difference among isolates from Hebei by identifying the pathogenecity. The strongest isolates were FON31 and FON40, the weakest isolates was FON12 on the pathogenecity.
采用琼脂稀释法测试了它们的生物活性，结果表明这些嘧霉胺盐对棉花、黄瓜、西瓜以及番茄枯萎病菌均具有较好的抑制作用。
Eleven of them are reported for the first time. Their preliminary toxicities have been tested by asp-agar-diluted method. The results showed that they exhibited excellent fungicidal activities.
采用琼脂稀释法测试了它们的生物活性，结果表明这些嘧霉胺盐对棉花、黄瓜、西瓜以及番茄枯萎病菌均具有较好的抑制作用。
Eleven of them are reported for the first time. Their preliminary toxicities have been tested by asp-agar-diluted method. The results showed that they exhibited excellent fungicidal activities.
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