摘要
槐尺蛾ＳｅｍｉｏｔｈｉｓａｃｉｎｅｒｅａｒｉａＢｒｅｍｅｒｅｔＧｒｅｙ繁殖量大，发生世代多，利用雌蛹重和蛹期预报发生数量与孵化时间是防治的关键。经测定，雌蛹重和产卵量的相关方程为ｙ＝－３４７．４４＋５８９．９５ｘ；利用变温经“加权法”算出蛹期发育起点温度Ｃ＝１４．４０±０．８７℃，有效积温Ｋ＝１７９．４４±１３．０１（ＤＤ）。这种测定方法既简捷又符合实际。
Semiothisa cinerearia Bremer et Grey is one of the dangerous pests which feeds on leaves of Sophora japonica and S. japonica var. pendula and it reproduces many generations a year.The foreCast of its occurrence amount and pupal stage is the key to control.Female pupal weight is related to ovipositing amount,and its relation formula is =-347.44+5852.95x.Pupal initial developing temperature(C) and available temperature summation(K) are calculated C=14.40±0.87(℃),K=179.44±13.01(DD).
出处
《森林病虫通讯》
北大核心
1998年第2期9-11,共3页
Forest Pest and Disease
基金
安徽省教委资助
关键词
槐尺蛾
国槐
产卵量
蛹期
Semiothisa cinerearia Bremer et Grey, sophora japonica,ovipositing amount, Pupal stage.
