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li yuan li mu shi de fa sheng ji wu gong hai fang zhi
Author(s): 
Pages: 164-164,167
Year: Issue:  10
Journal: XIANDAI NONGYE KEJI

Keyword:  梨木虱发生防治梨园;
Abstract: 介绍梨木虱的发生规律、生活习性,根据其发生原因,按照无公害防治要求,采取人工防治,适时合理用药,交替和选择低毒农药并及时更新农药品种,同时多种害虫防治兼顾,从而达到避免或延缓梨木虱产生抗药性,保护天敌,以期逐步恢复并发挥生态系统的自然调控能力,作为持久的防治对策.
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