For the last week of August 2010, about 35% of corn earworm moths survived 24 hours of exposure to 5 micrograms of cypermethrin (a pyrethroid) in our vial tests. Moths were collected from pheromone traps in Suffolk, VA. We have evaluated 2,598 vials so far this season. Please see the attached line graph to see results for the entire season. Additional information: cew-cypermethrin-ppt