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韭菜长白点怎么办
更新时间: 2020-08-18 00:00:00  

韭菜长白点防治方法:

1、及时通风降低温室湿度;

2、可用百分之五十腐霉利1000倍液、百分之五十啶酰菌胺1200倍液或百分之九十多菌灵600倍液,5到7天喷施一次,严重时可适当加大剂量3到5天喷施一次,可有效防治;

3、可用百分之十五腐霉利烟剂每亩250到350克熏蒸,进行熏蒸5到7天即可。

关键词: 韭菜 白点 怎么办

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