Pigeon-Pea Pod Borers and Their Natural Enemies in Barbados, West Indies

In Barbados, three pests, Heliothis virescens (F.), Fundelia cistipennis (Dyar) and Callosbruchus chinensis (L.) inflict serious damage co pigeon-pea pods. Over the years it was estimated that some 60% pods were destroyed annually. Although a number of indigenous natural enemies were recorded attacking eggs, larvae and pupae of these pests, their populations were usually too low for adequate control. Between 1968 and 1983, a number of parasite species were introduced from India, Pakistan, Uruguay, U.S.A. and the Eastern Caribbean islands; 17 for the control of H. virescens, seven for F. cistipennis and two for C. chinensis. Of these, two species, Bracon hebetor (Say), from India and Bracon sp. prob. bebetor (Say) (close to Bracon brevicornis [Wesmeal]), from St. Vincent, became established against Heliothis and Fundelia. The levels of parasitism by the latter species ranged from 2.1 - 70%, avg. 16.4%, between April and December 1983.


Issue Date:
Oct 21 1984
Publication Type:
Conference Paper/ Presentation
Language:
English
Total Pages:
5




 Record created 2017-08-09, last modified 2017-08-29

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