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为了明确广西南宁市稻纵卷叶螟寄生蜂种类,给合理保护、利用天敌提供理论参考,采用田间系统调查和室内饲养观察法研究了2011年广西南宁市稻纵卷叶螟寄生蜂的种类和发生数量。结果表明:南宁市稻纵卷叶螟寄生蜂种类有18种,分属于姬蜂总科Ichneamonoidea、小蜂总科Chalcidoidea。姬蜂总科中包含姬蜂科Ichneumonidae和茧蜂科Braconidae寄生蜂11种。小蜂总科Chalcidoidea中包含小蜂科Chalcididae、寡节小姬蜂科(姬小蜂科)Eulophidae、扁股小蜂科Elasmidae和赤眼蜂科Trichogrammatidae寄生蜂7种。其中稻纵卷叶螟姬小蜂Stenomesius maculatus Liao、纵卷叶螟绒茧蜂Apanteles cypris Nixon是幼虫期优势寄生蜂。在自然控制条件下,以稻纵卷叶螟姬小蜂的分布最广、种群数量最多,尤其是上半年,其发生数量占寄生蜂总数的89.7%;在施药与不施药两种管理模式下,施药区该蜂发生量占寄生蜂总数的69.1%,不施药区占78.5%。本文列出了寄生蜂分属、种检索表,可为田间种类识别鉴定提供参考。
In order to clarify the species of parasitic wasps of rice leaf roller in Nanning, Guangxi, this paper provided theoretical references for natural protection and rational use of natural enemies, and studied the species of parasitoids of rice leaf roller, Nanning, Guangxi in 2011 with the methods of field investigation and indoor feeding observations The number of occurrences. The results showed that there were 18 species of parasitoids in Nanning City, belonging to Ichneamonoidea and Chalcidoidea. There are 11 species of Ichneumonidae and Braconidae parasitoids in the family Mytilus. In the Chalcidoidea family, Chalcidoidea contains seven species of parasitoids: Chalcididae, Eulophidae, Elasmidae and Trichogrammatidae, Trichogrammatidae. Among them, Stenomesius maculatus Liao and Apanteles cypris Nixon were the dominant parasitoid larvae. Under the natural control conditions, the Bombyx mandarina was the most widely distributed, with the largest population, especially in the first half of the year, accounting for 89.7% of the total number of parasitoid; in both management and non-application In the mode, the bee occurred in the pesticide area accounted for 69.1% of the total number of parasitoids and 78.5% in the non-applied area. This article lists the parasitoid species, species retrieval table, for identification of field species provide a reference.