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白蜡树遭遇虫害危机:树干密布虫孔,地面散落木屑细丝,原因何在?(1)若虫孔内有幼虫,有两种方法可行:使用氧化乐果按比例稀释后用注射器注入虫孔10-15毫升,然后用黏土封闭虫孔;或者用毒死蜱混合有机硅兑 ...
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