Eight cultivars were tested in 1998 to assess Silverleaf Whitefly incidence and its effect on lint and seed cotton yield. Paymaster 1277 and CIANO CÓCORIM-92 were the least attractive varieties for the Silverleaf Whitefly, at the same time DELTAPINE 5432 and SURE-GROW 125 were the most susceptible. The cultivars with the greatest production potential are DELTAPINE 9775 and DELTAPINE 5432; meanwhile the regional check was 5th, and however no significant differences in yield were detected when comparing varieties. No correlation was detected between production potential and preference by Silverleaf Whitefly.