【摘要】 1990年以来 ,在三门峡市东湾林场调查了松扁叶蜂种群动态及为害情况 ,并根据种群数量变动规律进行预测预报 ,制定防治指标 .科学营林 ,保护和利用天敌 ,适时进行化学防治能有效地控制该虫的为害 .更多还原

【Abstract】 An investigation was made on the population ecology and harmfulness of Acantholyda posticalis posticalis Matsumura in Sanmenxia from 1990.The population forecast was taken by the pest population dynamics and worked out the index of the prevention and comtrol of elimination of the pest.The pest can be controlled by scientific planting forests,protecting the natural enemy and agricultural chemical.更多还原