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1985～1989年,对广元、简阳、金堂等部分柏木林区柏木松毛虫卵、蛹期寄生天敌进行了调查研究,经鉴定寄生天敌昆虫6种。卵期以白跗平腹小蜂寄生率最高,1986年平均为12.1％,1989年为60.0％;蛹期以黑角洼头大腿小蜂寄生率最高,平均为46.5％。 柏木松毛虫Dendrolimus sp.(俗名大柏毛虫)为我省柏木林区一大害虫。每年发生1代,幼虫于3～7月取食柏木Cupressns funebris Endl叶片或嫩枝,严重时造成整个林分似枯焦,甚至死亡。自1980～1987年此虫在全省柏木林区为害较重,近年逐渐减轻。其原因是柏木松毛虫受到自然寄生
From 1985 to 1989, the parasitoid natural enemies of eggs and pupal stage of cedar pine wood in Guangmu, Jianyang and Jintang were studied. Six parasitoids were identified. The parasitoid rate was highest in the egg stage, with an average of 12.1% in 1986 and 60.0% in 1989; the parasitoid rate of the thorn wasps in the pupal stage was the highest with an average of 46.5%. Cedar Dendrolimus sp. (Common name big cypress caterpillar) is a major insect in the cedar forest area in our province. One generation per year occurs. The larvae take leaves or shoots of Cupressus funebris Endl from March to July, causing the whole forest to become burnt or even dead in severe cases. Since 1980 to 1987, this pest in the province of Kashiwagi forest damage heavier in recent years gradually reduced. The reason is that cedar moths are naturally parasitic