بررسی بیولوژی سرخرطومی گیلاس در منطقه شاهرود

This study revealed that the dominant species of cherry weevil in Shahrood is: Rhynchites auratus (Scop.) (Col. Curculionidae, Rhinchitinae) The adults are green-matalic reddish, pubescent on elytron: and 10-11 mm in lengnth. Egg are white, oval and 0.6-0.8 mm in lengnth.Cherry weevil adults apper gradually on tree from earley -April to the end April in Zirestagh and Bastam respectively, when the host plant flower apper, which depending on the climatic condition of year. Female adults after feeding, then mating and lay thir eggs on the near of fruit stone. usually only one egg was laid per fruit bye female.