Effect of Kairomones in the Host Searching Behavior of Apanteles kariyai WATANABE (Hymenoptera : Braconidae), a Parasitoid of the Common Armyworm, Pseudaletia separate WALKER (Lepidoptera : Noctuidae) : II. Isolation and Identification of Arrestants Produced by the HOst Larvae

抄録

Arrestants which keep A. kariyai in the host habitat were isolated from the exuviae of the host larvae and their structures were elucidated by a combination of MS, PMR and CMR spectra. The chemical structurs of the arrestants were found to be a series of 2, 5-dialkyl-tetrahydrofurans. Impregnation of 0.1μg of each arrestant onto a paper disc elicited 70-90% response from A. kariyai.