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OCCURRENCE LEVELS OF THE RUSSIAN WHEAT APHID IN RELATION TO CLIMATIC FACTORS
Author(s): 
Pages: 68-71
Year: Issue:  S1
Journal: Acta Entomologica Sinica

Keyword:  麦双尾蚜 发生程度 预测预报 气象因子;
Abstract: 利用新疆塔城1989 ~1996 年8 年的麦双尾蚜Diuraphis noxia ( Mordvilko) 发生程度与16个气象因子进行相关性分析, 通过逐步回归筛选因子, 确定麦双尾蚜发生量预测模型:log Y=8-4100- 0-1033RH5 - 0-0253R5 , 其中: Y为麦双尾蚜发生百株蚜量; RH5 为5 月份的相对湿度( % ); R5 为5 月份的降水量(m m)。应用该模型预测1997 ~1998 年麦双尾蚜的发生程度, 与实际发生情况基本吻合。
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