云杉花墨天牛取食倾向初报

Feeding preference of Monochamus saltuarius Gebler (Coleoptera: Cerambycidae) for Pinus koraiensis,Pinus tabulaeformis and Larix kaempferi

为探究云杉花墨天牛Monochamus saltuarius Gebler的取食倾向,在养虫箱内对红松Pinus koraiensis、油松Pinus tabulaeformis和日本落叶松Larix kaempferi枝条饲喂的云杉花墨天牛成虫体质量和取食选择性进行研究。结果发现,云杉花墨天牛对红松、油松和日本落叶松均具有取食行为,取食红松和油松的体质量显著高于取食日本落叶松的;对不同松树取食部位也有较大差异,主要取食红松新梢,油松新梢、新枝和针叶,落叶松针叶;对3种寄主植物的取食倾向由高到低为红松,油松,日本落叶松。

In order to clarify the effects of Monochamus saltuarius Gebler on feeding preference for various tree species,the body mass and feeding preference of M.saltuarius fed by Pinus koraiensis,Pinus tabulaeformis and Larix kaempferi branches were determined in laboratory.The results showed that body mass of M.saltuarius fed on P.koraiensis and P.tabulaeformis were significantly higher than fed on L.kaempferi.The bud of P.koraiensis,the bud,shoots and pine needles of P.tabulaeformis,and pine needles of L.kaempferi were the principal feeding sites for M.saltuarius.The highest feeding preference was P.koraiensis.The feeding preference of M.saltuarius was in the following order:P.koraiensis,P.tabulaeformis,L.kaempferi.