树桩盆景易发生天牛危害,轻则导致盆景生长不良、树势衰弱,重则会使枝干中空、易折,影响造型,甚至使整株盆景枯死。防治树桩盆景天牛,过去普遍采用的方法,一是用钢丝钩钩杀幼虫,此法对在皮下取食或蛀入木质部较浅的低龄幼虫有一定的效果,但对蛀入木质部较深的高龄幼虫则无能为力;二是采用直接灌药或注射药液的方法防治蛀入木质部较深的幼虫,虽有一定防效,但费工 Stump bonsai easy to happen Tianniu hazards, ranging from poor growth led to bonsai, tree weakness, weight will make the branches dry, easy to fold, affecting the shape, and even the whole plant bonsai dead. Prevention and treatment of stumps bonsai beetle, the method commonly used in the past, one with a hook hook to kill larvae, this method of subcutaneous feeding or decay of shallow xylem larvae have some effect, but the deep into the xylem Older larvae are incapable of action; the second is the use of direct irrigation or injection of liquid method of controlling deep into the xylem larvae, although a certain control effect, but the labor