Intrinsic competition between resident and invasive parasitoids (Hymenoptera: Braconidae) that attack the West Indian fruit fly Anastrepha obliqua under field conditions. Issue 3 (4th March 2019)

• Record Type: Journal Article
• Authors: Murillo, Félix D.; Cabrera-Mireles, Héctor; Barrera, Juan F.; Liedo, Pablo; Montoya, Pablo
• Is Part Of: Biocontrol science and technology. Volume 29:Issue 3(2019)
• Page Start: 230
• Page End: 240
• Publication Date: 2019-03-04
• Subjects: Diachasmimorpha longicaudata -- Doryctobracon areolatus -- Utetes anastrephae -- competitivity; Pests -- Biological control -- Periodicals; Weeds -- Biological control -- Periodicals; Pesticides -- Environmental aspects -- Periodicals; Plants, Protection of -- Periodicals; Plants -- Biological control -- Periodicals; Agricultural pests -- Control -- Periodicals; Pest Control, Biological -- Periodicals; 632.96
• DOI: 10.1080/09583157.2018.1548573
• Languages: English
• ISSNs: 0958-3157

Abstract

ABSTRACT: We evaluated under semi-field conditions the intrinsic competition between Diachasmimorpha longicaudata (Ashmead), as an invasive parasitoid, and Doryctobracon areolatus (Szépligeti) and Utetes anastrephae (Viereck) (all Hymenoptera: Braconidae) as resident parasitoids, as well as that between U. anastrephae as an invader and D. areolatus as a resident. The percentage of live D. areolatus larvae decreased by 39.8% and 29.4% following attack by D. longicaudata and U. anastrephae as invasive parasitoids, respectively. Likewise, the parasitism percentage of D. areolatus decreased by 31.5% and 60.8% under competition with the invasive parasitoids D. longicaudata and U. anastrephae, respectively. Parasitism by D. longicaudata decreased by 44.6% and 41.6% in the presence of the residents D. areolatus and U. anastrephae, respectively, while parasitism of U. anastrephae was only affected when this species was a resident. We concluded that D. areolatus is an inferior intrinsic competitor and that U. anastrephae resists the competitive presence of D. longicaudata .