eprintid: 11403 rev_number: 8 eprint_status: archive userid: 3170 dir: disk0/00/01/14/03 datestamp: 2020-03-18 08:29:07 lastmod: 2020-03-18 08:29:07 status_changed: 2020-03-18 08:29:07 type: article metadata_visibility: show creators_name: Sanou, A creators_name: Traoré, F creators_name: Ba, M N creators_name: Dabiré-Binso, C L creators_name: Pittendrigh, B R creators_name: Sanon, A icrisatcreators_name: Ba, M N affiliation: Laboratoire Central d’Entomologie Agricole de Kamboinsé, Institut de l’Environnement et de Recherches Agricoles, Ouagadougou, (Burkina Faso) affiliation: Laboratoire d’Entomologie Fondamentale et Appliquée, UFR/SVT, Université Ouaga I Pr Joseph Ki-Zerbo, Ouagadougou, (Burkina Faso) affiliation: ICRISAT (Niamey) affiliation: Department of Entomology, Michigan State University, (East Lansing) country: Burkina Faso country: Niger country: USA title: Effects of Volatiles from Clavigralla tomentosicollis Stål. (Hemiptera: Coreidae) Adults on the Host Location Behavior of the Egg Parasitoid Gryon fulviventre (Crawford) (Hymenoptera: Scelionidae) ispublished: pub subjects: S8 subjects: s2.7 divisions: CRPS1 full_text_status: public keywords: Gryon fulviventre, Odor source, Parasitoid attraction, Biological control, Cowpea pod-sucking bug note: The authors are grateful to the International Institute of Tropical Agriculture (IITA) in Cotonou, Benin, for technical assistance and research facilities. abstract: The egg parasitoid Gryon fulviventre is a potential biological control agent of Clavigralla tomentosicollis, a coreid pod-sucking pest of Vigna unguiculata. The host location behavior of naive parasitoid females was studied using a four-armed olfactometer. Two strains of G. fulviventre parasitoids from Burkina Faso and Benin were exposed to odors provided by healthy and infested pods as well as C. tomentosicollis females and males. The time spent in each odor zone was recorded to determine the preference of parasitoid females. Results show that odors from healthy pods, infested pods, and pest females did not attract the parasitoid. However, a significantly attractive response of both strains of G. fulviventre was recorded in the presence of volatiles from males of C. tomentosicollis. Moreover, experiments testing G. fulviventre females’ behavior when simultaneously exposed to volatiles from cowpea pods (healthy and infested) and increasing numbers of C. tomentosicollis males revealed a significantly higher attraction of parasitoid females of both strains by volatiles from ten males of C. tomentosicollis. The results suggest that the males of the insect pest emit a pheromone used as kairomone by parasitoids to locate their host. The conditions determining this attractiveness at field level and its impact on host-searching efficiency are discussed. date: 2019-01 date_type: published publication: International Journal of Insect Science volume: 11 publisher: SAGE Publications pagerange: 1-7 id_number: doi:10.1177/1179543318825250 refereed: TRUE issn: 1179-5433 official_url: https://doi.org/10.1177/1179543318825250 related_url_url: https://scholar.google.com/scholar?hl=en&as_sdt=0%2C5&q=10.1177%2F1179543318825250&btnG= related_url_type: pub citation: Sanou, A and Traoré, F and Ba, M N and Dabiré-Binso, C L and Pittendrigh, B R and Sanon, A (2019) Effects of Volatiles from Clavigralla tomentosicollis Stål. (Hemiptera: Coreidae) Adults on the Host Location Behavior of the Egg Parasitoid Gryon fulviventre (Crawford) (Hymenoptera: Scelionidae). International Journal of Insect Science, 11. pp. 1-7. ISSN 1179-5433 document_url: http://oar.icrisat.org/11403/1/1179543318825250.pdf