We are starting to get more reports of spider mites damaging corn and soybeans in Nebraska. Because many other things can cause similar discoloration, it is important to check leaves closely to make sure mites are actually causing the damage.
Recommendations for managing spider mites in corn and soybean, including treatment thresholds, insecticides as well as discussions on the potential impact of beneficial insects, diseases, and insecticide applications.
The growth stage of corn during WBC flight is critical as moths prefer to lay their eggs on corn plants between the late whorl to early tassel stage. Survival of young WBC larvae is highest if they can feed on newly emerged tassel prior to moving into the ears.
During the daylight hours the army cutworm moths seek shelter in cracks and crevices including those found in houses and other buildings. The moths begin to emerge from these locations at dusk to resume their feeding and westward migration.