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Title: SILVERLEAF WHITEFLY COTTON CULTIVAR PREFERENCE

Author
item Chu, Chang Chi
item NATWICK, ERIC - UNIV. CA, COOP EXT. CA
item Henneberry, Thomas
item Cohen, Allen
item Castle, Steven

Submitted to: University of Arizona Agricultural Experiment Station
Publication Type: Experiment Station
Publication Acceptance Date: 8/1/1998
Publication Date: N/A
Citation: N/A

Interpretive Summary:

Technical Abstract: All of nine cotton cultivars tested were susceptible to silverleaf whitefly, Bemisia argentifolii Bellows and Perring in Imperial Valley, CA in 1995 and 1996. Using 4.1 adults per leaf turn as an insecticide- treatment action threshold, Deltapine (DPL 5409 and 5415 required 5.5 applications of insecticide, DPL 50, 5461, and 5517 required 6 applications, DPL 5432 and 5690 required 6.5 applications, Louisiana (LA) 887 required 7 applications, and Stoneville (ST) 474 required 7.5 applications. Results indicate the potential to reduce insecticide application by selecting appropriate cultivars that are commercially available.