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柿长绵粉蚧的发生规律及防治方法柿长绵粉蚧的发生规律及防治方法河南省农业学校程亚樵孙元峰夏立衡雪梅中国烟草总公司郑州烟草中专学校典瑞丽柿长绵粉蚧近两年在河南省农业学校环校路两侧柿树上大发生，虫株率高达１００％（但嫁接未成功的野生柿树上发生极轻）。由于长...
Occurrence and control methods persimmon mealybug Persimmon Mayfly occurrence and prevention and control methods Henan Agricultural School Cheng Yaqiao Sun Yuanfeng Xia Libin Xuemei China Tobacco Corporation Zhengzhou Tobacco College Code Ruili persimmon Melastoma past two years Occurred on the persimmon trees on both sides of the ring road in Henan Agricultural School, the worm strain rate was as high as 100% (but very light on grafted unsuccessful wild persimmon trees). Due to long ...