在孟滦林区 ,危害华北落叶松的森林害虫较多 ,松腮扁叶蜂是其中比较严重的一种。由于该虫生活习性复杂 ,世代不齐现象十分突出 ,化学防治由于药效时间短 ,且对叶蜂的卵及蛹根本不起作用。鉴于该虫以幼虫危害 ,于 1 997年进行了用红树蚁除治腮扁叶蜂的生物防治试验 ,效果良好。1 In Mengluan forest area, there are more forest pests that endanger Larix principis-rupprechtii, which is one of the more serious ones. Due to the complex living habits of the pest, the generational imbalance phenomenon is very prominent. The chemical control has no effect on the eggs and pupae of the larvae due to the short effective period. In view of the insect larvae damage, carried out in 1997 with the control of biological control monascus mites beetle with good results. 1