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西红柿杆变黑了是因为什么原因
更新时间: 2020-07-04 00:00:00  

西红柿杆得了西红柿黑杆病。这是茎腐病或茎基腐病, 是立枯丝核菌引起的。能够引起杆、叶子发黄发黑等死亡症状。另一种是茎秆中上部或分杈处出现黑褐斑等。

可用64%杀毒矾可湿性粉剂500倍液或百分之58雷多米尔锰锌可湿性粉剂500倍液或者百分之72、2普力克水剂800倍液喷雾清洗,7到10天1次,连续4到5次。

关键词: 西红柿 是因为 什么 原因

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