Dr. Herbert mentioned in his 29 July 2010 advisory that we are continuing to monitor for pyrethroid resistance in corn earworm. We have now tested over 1,500 moths and are averaging 28% survival in the 5 ug cypermethrin vials (click ‘More’ to see the data). This is now the third consecutive year that local corn earworm populations are demonstrating high levels of pyrethroid resistance. As Dr. Herbert said in his advisory, proceed with caution and consider non-pyrethroids especially in peanut or soybean fields with a lot of worms. Additional information: cew-cypermethrin-2010-pdf