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Evaluation of New Insecticides for Control of Cotton Fleahoppers in Two Production Regions of Texas

C.G. Sansone, Dale A. Mott, S.P. Biles and R.R. Minzenmayer


ABSTRACT

The cotton fleahopper is considered a key pest in the Southern Blacklands of Texas and an occasional pest in the Southern Rolling Plains. The Food Quality Protection Act (FQPA) may affect choice of insecticides for producers to control this pest. Five new or relatively new insecticides were evaluated and compared for cotton fleahopper control. Acetamiprid (Assail®), thiacloprid (Calypso®) and thiamethoxam (Actara®) provided the most control, although cotton fleahopper numbers were not significantly different except for season averages. Migration from alternative hosts limited control to three days after treatment (DAT). Predator numbers were low throughout the test period but a trend exists for fewer predators in treated cotton for all treatments. Insecticide treated cotton produced an average of 164 pounds of lint per acre more than the untreated cotton.





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Document last modified May 20, 2002