梨小食心虫的天敌资源

The Investigation into Natural Enemies of Grapholitha molesta (Lepidoptera: Tortricoidea)

对文献资料中的梨小食心虫天敌和山西太谷县主要果品产区的天敌资源进行了调查,查明梨小食心虫天敌共255种,其中,寄生性252种(中国48种),捕食性3种,分属昆虫纲(膜翅目、双翅目、缨翅目、鞘翅目)和蛛形纲(蜱螨目),共5个目20个科,具有应用潜力的天敌昆虫7种,已经成功应用于生产中的天敌昆虫5种;山西省分布共10种,均为膜翅目寄生性天敌,在太谷县分布有3种,其中,齿腿姬蜂属(Pris-tomerus sp.)和瘤姬蜂属(Pimplini sp.)可以与梨小食心虫同时羽化。

The natural enemies of Grapholitha molesta in literature were retrieved and in main fruit producing areas in Taigu county,Shanxi province were investigated.Results showed that there were 255 species of the natural enemies,among which 252 species（48 species in China） were parasitic insect and 3 species were predator insect belonging to Insecta（Hymenoptera,Diptera,Thysanoptera,Coleoptera） and Arachnida（Acarina）.They were altogether 20 families and 5 orders,and 5 species in which had been successfully applied in the production;In Shanxi province there distributed total 10 species and they all belong to Hymenoptera family.7 natural enemies species of which have application potentiality,what＇s more,there were 3 these species distributed in Taigu,among them Pristomerus sp.and Pimplini sp.could simultaneous eclosion with Grapholitha molesta.