胝毛金小蜂生物学特性及其利用研究OA

[Objective]Piliferocallus hezhangensis Yang et Zhan(PHY)is an important parasitic enemy of Neodiprion huizeensis,and has a better effect on Neodiprion huizeensis population control.This article investigated the morphological characteristics,biological characteristics,life history and forest conservation of PHY,so as to provide theoretical support for the further application of its natural enemy insects.[Method]The biological characteristics of PHY,including emergence,mating and oviposition,were studied through laboratory and field observation.[Result]Results showed that two generations occurred every year in Hezhang.The larvae overwintered in the cocoon of the host.The activity of feeding began in the middle of May of the next year,and also pupation began almost at the same time.The adults began to emerge from the host cocoon in early June and mate soon.The adult eclosion stage was in mid-June and late June,and ended in late July.Female wasps began to lay eggs in the host cocoon in early June,and spawning peak period occurred in early July and finished in lay August.The natural parasitism rate was 9.3%～12.3%.The larvae of the second generation began to feed in mid-October,adults eclosion and mating began in early October,and then laid eggs over the winter.Through the use of forest conservation equipment,it was found that under the condition of 5%honey water(containing 1%leucine)exogenous food,the life span of callose wasps could be extended to 60.35 d,which was 46.55 d higher than that without food.[Conclusion]Two generations of PHY occur every year in Hezhang.The larvae overwinter in the cocoon of the host.With 5%honey water(containing 1%leucine)exogenous food,the life span of PHY can significantly be improved(up to 60.35 days).This method is beneficial for the forest conservation.