黑腐病

yè zi shang chéng zì xíng de huáng sè huò zōng sè dì fang kě néng shì juǎn xīn cài gǎn rǎn le hēi fǔ bìng de zhēng zhào

叶子上呈V字型的黄色或棕色地方可能是卷心菜感染了黑腐病的征兆。

Yellow or brown areas shaped like the letter V on leaves may be a sign of black rot infection.