Plants damaged by herbivores are known to release odors attracting parasitoids. However, there is currently no information how leguminous plants damaged by the pod borer attract the exotic larval parasitoid , which was imported into Benin from the putative area of origin of the pod borer in tropical Asia for assessing its potential as a biological control agent. In this study, we used Y-tube olfactometer bioassays to investigate response towards odors emitted by four -damaged host plants: cowpea , the most important cultivated host, and the naturally occurring legumes and . Olfactory attraction of was influenced by the species of plant damaged by the pod borer. Moreover, odors released from -infested host plant organs (flowers and pods) were discriminated over non-infested organs in cowpea and , respectively. These results are discussed in the context of the possible impact of host plants on foraging activity and subsequent establishment in natural environments following experimental releases.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6365886PMC
http://dx.doi.org/10.1016/j.biocontrol.2018.11.002DOI Listing

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