Some no-till cornfields on the Eastern Shore are experiencing pest pressure from stink bugs. These insects can impact yield up to 10%. For corn seedlings and early whorl stage before silking, small developing ears (½ – ¾ inches long) can be damaged by stink bug feeding resulting in malformed ear development. Treat corn if 10 percent or more of plants are infested with stink bugs at or shortly
before ear shoots appear (about V15). Do not
treat stink bug infestations once silking has begun.
Most pyrethroid insecticides (such as Karate, Warrior II, Baythroid XL, Hero, Brigade, Prolex, Tombstone, and the generic equivalents, etc..) are effective against stink bugs.