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关中地区危害杨树叶部的蛾类区系及其防治适期的模糊预测
FUZZY ESTIMATION OF OPTIMUM CONTROL STAGE AND MOTHFAUNA DAMAGING POPLAR LEAVES IN GUANZHONG
【摘要】 本文论述了关中地区杨树食叶蛾类的区系结构,并从生态学角度出发,运用模糊分析方法,阐明了下旬/5月~中旬/6月,下旬/7月~中旬/8月为防治适期。
【Abstract】 The paper discussed the mothfauna structure in Guanzhong region,from the view point of ecology the optimum control stage is the time of latter May to mid June or latter July to Mid August by using fuzzy analysis method.
- 【文献出处】 陕西林业科技 ,Shaanxi Forest Science and Technology , 编辑部邮箱 ,1991年03期
- 【被引频次】1
- 【下载频次】40