Pissodes yunnanensis Longer Situ et Zhang is a serious trunk and branch borer of Yunnao pine,and it was found recently in Bijie prefecture of Guizhou province.

• 云南木蠹象是云南松的主要蛀干、蛀梢害虫,以幼虫在松树韧皮部和木质部蛀食为害,常常造成主干和侧枝枯死,严重危害的林分可导致成片松树死亡。