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富贵竹叶子发黄怎么办还有虫子
更新时间: 2020-07-15 00:00:00  

富贵竹常有蜘蛛、天牛、叶螨、介壳虫等害虫蛀心或咬皮、咬叶心、咬叶尖为害并传播炭疽病,可用50百分之敌敌畏1000倍喷杀,防虫效果较好。

叶片上出现炭疽病、叶斑病时,可用百分之75百菌清800倍、或百分之70甲基托布津、百分之50加瑞农可湿粉600到800倍液,或百分之12、5乳油蕉斑脱600到800倍或百分之70代高乐1000到1200倍,或百分之50炭疽福美可湿粉500倍液喷施防治,上述农药交替使用,每5到7天一次,连续3到4次,防治效果较好。

关键词: 富贵竹 叶子 发黄 怎么办 还有 虫子

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