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我们医院的花园曾发生蚧虫危害,本人用药棉蘸硫酸尼古丁稀释液揩抹叶片,可以防治蚧虫,但要细心操作,一手用指头轻轻
Our hospital garden had scale insects harm, I use cotton wool dipped in nicotine sulfate dilution 揩 wipe leaves, you can control scale insects, but to be careful operation, one hand with your fingers gently