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榆跳象生物学特性观察与防治试验司振海（广平县林业局）邵吉祥（河北省林业项目管理中心）石用虎（邯郸市林业局）刘保太（广平县林业局）董绪增（河北省林科所）榆跳象（ＲｎｙｎｃｈａｅｎｕｓｄｌｎｉＬｉｎｎａｅｕｓ）危害榆属树种，成虫取食芽苞和叶片，造成叶片缺...
Observation on the Biological Characteristics of Ulmus pumila and Its Prevention and Control Experiment Zhen-hai (Forestry Bureau of Guangping County) Shao Jixiang (Forestry Project Management Center of Hebei Province) Dong-Zeng-ti (Handan Forestry Bureau) Province Linke) Elm jumping like (RnynchaenusdlniLinnaeus) endanger Ulmus species, adult buds and leaves buds, resulting leaves lack ...