The resistance ratios we calculated in 1995 showed the larvae collected from sites in the southeast and southwestern part of the cotton belt to have <4 fold tolerance to Larvin. Those obtained from sites in the mid-south demonstrated <12 fold resistance. On the other hand, resistance to the synthetic pyrethroids Sherpa and Decis in these areas ranged from 5 to 44 fold. These results indicated that tobacco budworm larvae possessed significantly higher levels of resistance to Sherpa and Decis than to Larvin. These data suggest that high resistance to synthetic pyrethroids will not cause high cross-resistance to carbamate insecticides.