The Host Range of the Bamboo Shoot Weevil,Otidognathus davidis

The damage and performance of the bamboo shoot weevil,Otidognathus davidis Fair.on different bamboo species were investigated under multi-selection and non-selection conditions.The insect showed distinct host selection behavior and caused damagesvarying with different species under multi-selection.The 54 species belong to 6 genera in the Anji Bamboo BotanicaI Garden located in Zhejiang Province, which could be divided into three groups based on cluster analysis of damage indexes.The mean index was 38.8 for g1,21.8 for g2 and 7.3 for g3 rexpectively.Under non-selection, however, the adult weevil displayed similar performance in survival, feeding and egg-laying in laboratory reared with Phyllostachys species.Based on these results,the authors discuss the host range, host selection behavior and potential factors of tlie hosts effecting the performances of the insect.