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喜树黄毒蛾是喜树的一种重要害虫。该虫在福建沙县一年发生6代,以3~4龄幼虫在落叶或地被物上结薄茧越冬。翌年3月上旬开始活动取食,3月中旬开始化蛹,4月上旬始见成虫。每雌蛾产卵174~409粒,卵期4~9天。幼虫5龄,少数6龄或7龄。越冬代幼虫历期87~108天,其余各代15~34天。老熟幼虫结茧前停食2~3天,在喜树枝杈或叶背结茧化蛹,蛹期6~20天。试验表明,喷洒20%敌敌畏或90%敌百虫晶体2000倍液,有良好防治效果。
Camptotheca acuminata moth is an important pest of the tree. The insects occurred in Shaxian County, Fujian Province for six generations a year, with 3 to 4 instar larvae in the deciduous or ground knot cocoon wintering. Beginning of March the following year, activities began to feed, pupae started in mid-March, and adult worms were seen in early April. Each female moth spawns 174 ~ 409, the egg period of 4 to 9 days. Larvae 5, a few 6 or 7 years old. Overwintering generation larvae duration of 87 to 108 days, the remaining 15 to 34 days. Mature larvae stop eating cocoon before 2 to 3 days, in the cork tree branches or leaves back cocoon pupation, pupal period of 6 to 20 days. Tests show that spraying 20% dichlorvos or 90% trichlorfon crystal 2000 times the liquid, have good control effect.