桃蛀螟为福建省桐棉马尾松（ＰｉｎｕｓｍａｓｓｏｎｉａｎａＶａｒ．ｔｏｎｇｍｉａｎｇｅｎｓｉｓ）的重要害虫．该虫在福建明溪一年发生３代或４代，以３～４龄幼虫在虫苞内越冬，幼虫共５龄，翌年３月上旬开始活动为害，以幼虫吐丝将嫩梢针叶缀合成虫苞，取食针叶，为害期长（从上／３～上／１１），常致嫩梢枯死．用４０％氧化乐果乳油１５００倍；８０％敌敌畏乳油１０００倍；４０％氧化乐果乳油１５００倍和８０％敌敌畏乳油１０００倍混合防治幼虫，均获显著效果． The moth borer is an important pest of Pinus massoniana var. Tongmiangensis in Fujian Province. The worm occurred in Mingxi, Fujian 3 or 4 generations a year to 3 to 4 instar larvae wintering in the insect bract, a total of 5 instar larvae, the beginning of March next year, the activity of damage to larvae will shoot tender needle Insect bud synthesis, feeding needles, damage period (from the upper / 3 ~ on / 11), often caused by dead shoots. With 40% omethoate 1500 times; 80% dichlorvos EC 1000 times; 40% omethoate 1500 times and 80% dichlorvos EC 1000 times mixed control larvae were significantly.