Wasp eat wasp: facultative hyperparasitism and intra-guild predation by bethylid wasps

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• 作者：Pé ; rez-Lachaud ; Gabriela ; Batchelor ; Tim P. ; Hardy ; Ian C.W.
• 关键词：Hyperparasitism ; Intra-guild predation ; Bethylidae ; Cephalonomia hyalinipennis ; Cephalonomia stephanoderis ; Prorops nasuta ; Goniozus ; Coffee berry borer
• 刊名：Biological Control
• 出版年：2004
• 出版时间：June, 2004
• 年：2004
• 卷：30
• 期：2
• 页码：149-155
• 全文大小：232 K

文摘

Bethylid wasps are primary parasitoids of coleopteran and lepidopteran pests of economic importance and have thus been deployed as biological control agents. We show that Cephalonomia hyalinipennis (Hym.: Bethylidae) is also a facultative hyperparasitoid of four other bethylid species: Cephalonomia stephanoderis and Prorops nasuta, natural enemies of the coffee berry borer, Hypothenemus hampei (Col.: Scolytidae), and of Goniozus nephantidis and Goniozus legneri, which have been released against lepidopteran pests of coconuts and almonds, respectively. Conspecific and allospecific ovicide and larvicide are also observed, constituting intra-guild predation. Such trophic interactions have the potential to disrupt biological control in coffee, coconut, and almond agroecosystems.