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1 February 2001 Efficacy of CC Traps and Seasonal Activity of Adult Bemisia argentifolii (Homoptera: Aleyrodidae) in Imperial and Palo Verde Valleys, California
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Abstract

Adult whitefly Bemisia argentifolii Bellows & Perring trap (CC trap) catches were compared with suction type trap catches. CC trap catches were significantly correlated to the suction trap catches. Higher numbers of B. argentifolii adults were caught in CC traps oriented toward an untreated, B. argentifolii-infested, cotton field as compared with traps oriented toward Bermuda grass fields, farm roads, or fallow areas. CC trap catches at five heights above ground (from 0 to 120 cm) were significantly related to each other in choice and no-choice studies. CC trap catches were low in the Imperial and Palo Verde Valleys from late October to early June each of 1996, 1997, and 1998. Trap catches increased with increasing seasonal air temperatures and host availability. Trap catches were adversely affected by wind and rain. Abrupt trap catch increases of 40- to 50-fold for 1–2 d in late June to early July followed by abrupt decreases in adult catches suggest migrating activity of adults from other nearby crop sources.

Chang-Chi Chu, Thomas J. Henneberry, Eric T. Natwick, David Ritter, and Stephen L. Birdsall "Efficacy of CC Traps and Seasonal Activity of Adult Bemisia argentifolii (Homoptera: Aleyrodidae) in Imperial and Palo Verde Valleys, California," Journal of Economic Entomology 94(1), 47-54, (1 February 2001). https://doi.org/10.1603/0022-0493-94.1.47
Received: 21 April 2000; Accepted: 1 October 2000; Published: 1 February 2001
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