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1997 Season Update on Resistance of Arizona Whiteflies to Synergized Pyrethroid and Select Non-Pyrethroid Insecticides

A whitefly resistance crisis in Arizona in 1995 prompted the development of a resistance management strategy in 1996 that recommended maximal once per season use of two insect growth regulators, pyriproxyfen (KnackĀ®) and buprofezin (ApplaudĀ®), and limited and delayed use of synergized pyrethroid insecticides in cotton. Statewide monitoring of whitefly resistance has shown that implementation of this strategy has substantially reduced whitefly resistance to the synergized pyrethroids and has also resulted in increased susceptibility to key non pyrethroid insecticides. Having benefited from two years of success with this strategy, the Arizona cotton industry now faces the question of whether it can be sustained as pyriproxyfen and buprofezin gain additional registrations for use against whiteflies in vegetables, melons and glasshouse crops.

Identiferoai:union.ndltd.org:arizona.edu/oai:arizona.openrepository.com:10150/210362
Date04 1900
CreatorsDennehy, Timothy J., Williams, Livey III, Li, Xiaohua, Wigert, Monika
ContributorsSilvertooth, Jeff, Department of Entomology, The University of Arizona, Extension Arthropod Resistance Management Laboratory, Tucson, AZ
PublisherCollege of Agriculture, University of Arizona (Tucson, AZ)
Source SetsUniversity of Arizona
Languageen_US
Detected LanguageEnglish
Typetext, Article
RelationAZ1006

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