Delta Farm Press Staff Research from Mississippi State University simulated corn earworm damage in the ear stage of field corn, and it took 50 to 60 kernels per ear to see a significant yield loss, Tyler Towles said. I have never seen anything that comes close to that, so keep in mind, you are not seeing any significant yield loss in field corn from this pest. An Extension and research Entomologist talked about insecticide seed treatments as well as Vip3A expressing corn hybrids to control corn earworm.
Is it worth it to use an insecticide seed treatment on field corn acres? Should I be planting Vip3A expressing corn hybrids to control corn earworm? Tyler Towles, Extension and Research Entomologist for the LSU AgCenter, answered these two questions, during the recent online Louisiana Agricultural Technology & Management Conference.