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苹果树腐烂病是一种毁灭性的病害,在我国各苹果产区都有发生。下面介绍两种防治方法。 1.用灰铜油高锰酸钾溶液治
Apple tree rot disease is a devastating disease in our apple producing areas have occurred. Here are two methods of prevention and treatment. 1 with ash copper potassium permanganate solution governance