天气预报 > 自然 > 雀梅长白毛怎么处理
雀梅长白毛怎么处理
更新时间: 2021-02-08 11:11:12  

1、雀梅长白毛可用三氯杀螨醇乳油600至800倍液,或用氧化乐果乳油1000至1500倍液防治,隔半月再喷施一次。

2、雀梅下山桩叶子上长白毛,常被误认为是白粉病,使用粉锈宁、托布津等药物防治也无效。其实,这是雀梅叶子受瘿螨危害所致,出现瘿螨危害时雀梅的叶子上会形成蜡丝状的细毛瘿。这种螨十分细小,很难被人发现,而且繁殖速度极快,一年中可产出40至50代,容易生长在衰弱的植株上。

关键词: 长白 怎么 处理

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