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黄瓜蔓枯病又称黑腐病,是全国性病害。主要是在露地栽培雨季发生,近年保护地也有发展趋势。 (一)主要症状 茎、叶、瓜及卷须等地上部均受害,茎部主要在茎基部和节部感病,病部初生油浸状病斑,后变灰白色,流胶,并密生
Cucumber blight, also known as black rot, is a national disease. Mainly in the open field cultivation occurs in the rainy season, in recent years there are trends in protected areas. (A) of the main symptoms of stems, leaves, melons and tendrils and other places are victims of the upper part of stems mainly in the base of the stem and the Department of susceptible disease Department of the first oil-soaked lesion, after the gray, gel,