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ARS Home » Research » Publications at this Location » Publication #84242
Title: SELECTION OF COTTON VARIETIES TO REDUCE INSECTICIDE APPLICATIONS FOR SILVERLEAF WHITEFLY CONTROL

Author
item Chu, Chang Chi
item Henneberry, Thomas
item NATWICK, ERIC - UCC EXT, HOLTVILLE, CA
item Cohen, Allen

Submitted to: Silverleaf Whitefly: 1997 Supplement to the Five Year National Research and
Publication Type: Abstract Only
Publication Acceptance Date: 8/1/1997
Publication Date: N/A
Citation: N/A

Interpretive Summary:

Technical Abstract: Studies conducted from 1995 to 1996 showed that cotton cultivars were different in their susceptibility to silverleaf whitefly colonization. When whiteflies were controlled at a threshold of 4.1 adults/leaf turn, lint yields of cultivars tested were similar, but numbers of Danitol-Orthene mixture insecticide applications applied to each cultivar were different. In 1995, based on the 4.1 adult threshold, 4 to 5 insecticide applications were applied to Deltapine (DPL) 5415 and DPL 5461 while 6 to 7 applications applied to Stoneville 474 and Louisiana 887. In 1996, based on the same threshold, the two Deltapine cultivars were treated 7 times and Stoneville 474 and Louisiana 887, 8 times.