蜀柏毒蛾Parocneria orrienta的初步研究

PREL IMINARY STUDY ON Parocneria orrienta

蜀柏毒蛾是福建省柏木的一种重要害虫,在福建一年发生2代,以幼虫越冬。翌年4月下旬越冬幼虫开始化蛹,5月上旬始见成虫。第一代幼虫5月中旬孵出,第二代幼虫9月中旬出现,幼虫危害严重期是3月下旬至5月中旬,其次是7月下旬至8月下旬。林间防治以PIB5×108个/mIPoNPV+20％氰戊菊酯(1:15000)倍液喷洒,或是PIB5×108个/mIPoNPV+5亿孢子/g白僵菌+20％氰戊菊酯(1:15000)的配比,防治效果最好。病毒的防治运期应掌握在5月上旬。

The lymantriid moths parocneria orienta Chao is a serious pest of Cupressus fune-bris. It has two generations each year and overwinters as larvae. The pupa begins to appear in late April next year and the adult moths to appear in early May. The serious period of this larvae harm is late March to mid ?May and late July to late August, respectively. The results showed that the best control effect was that applied with a preparation mixed with 5 X 108 PIB/ml PoN-PV and 20%Fenvalerate (1:15000), or with 5 X 108PIB/ml PoNPV 5X108 pore/g Beauveria bassiana and 20% Fenvalerate(l :15000).