彩纸对茶尺蠖幼虫诱集效率的研究

STUDIES ON THE TAXIS OF ECTROPIS OBLIQUA HYPULINA LARVAE TO CERTAIN COLOUR PAPER

本文研究了不同颜色彩纸在室内、野外对茶尺蠖幼虫的诱集以及彩纸与茶树共存时对茶尺蠖的竞争诱集。结果表明,不同颜色纸对茶尺蠖一龄幼虫有不同的诱集率,柠檬黄色纸诱引力最大,土黄、黄绿色纸次之。柠檬黄、土黄、黄绿色纸与茶树竞争诱集时,彩纸比寄主植物诱引力大。

The attraction of the first instar larvae of the Ectropis obliqua hypulina Wehrli to different colour paper in laboratory,in uncultivatedfield;a bundle of tea branches vs.colour paper has been studied.Theresults are as follows: 1.Differaent colour papers have shown to attract the first instarlarvae of tea geometrid in different degrees.Lemon yellow elicitedmaximum larval attraction;followed by yellowish brown andyellow-green.2.Compared with the host plant-tea branches,these colourpapers proved even more attractive than the leafy branches.