【摘要】 萧氏松茎象在南岳海拔1000m左右华山松上需两年完成1代(跨3个年头),第1年以幼虫过冬,第2年以成虫过冬,4～9月为成虫活动期。幼虫环状蛀食树干近地部分韧皮部,防碍养分输送,导致树势衰弱,从而为松墨天牛危害使华山松大片死亡创造了条件。幼虫期终年可见,是人工捕杀的好时机。更多还原

【Abstract】 The pine weevil, Hylobitelus Xiao,requires two years,across three years,to complete the lifecycle in Pinus armandii at elevation (1?000)?m in Nanyue.It over winters as larvae and adult in tunnel under bark in first and second year respectively.Larvae damage trunk to cut the transportation of nutritions,and resulted in creating precondition for the badly damage by Monochamus alternatus.Killing larvae by manual is one of the simple and effective measures to control the pest.更多还原