ABSTRACT
Male pink bollworm, Pectinophora gossypiella (Saunders), moth captures were compared for (1) delta sticky traps situated within cotton fields and at the edges of the same fields, (2) delta sticky traps situated in a network throughout the cotton producing areas and at edges of individual fields, and (3) delta sticky traps situated at edges of cotton fields and reservoir traps located within the same fields. Moth captures, averaged over all test fields, were consistently higher for in-field delta traps than for the same type of traps located at field edges, but the pattern of change over dates was similar. During the spring emergence period, area-wide delta traps not associated with cotton fields caught similar numbers of moths as did delta traps situated at edges of individual fields. When hostable oviposition sites (squares or bolls) were available, the area-wide traps captured fewer moths than did traps located at individual fields. Reservoir traps caught significantly more moths than did the delta sticky traps and also provided more realistic estimates of high and low points of moth activity (generation times).
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