What is the main reason control of corn earworm is rarely attempted?

The primary reason that control of the corn earworm is rarely attempted is because kernels are minimally damaged by this pest. When assessing the economic threshold for pest control, the level of damage caused by the corn earworm may not justify the costs and efforts associated with applying control measures, such as insecticides. In many cases, the potential yield loss from this pest is not significant enough to warrant intervention.

The corn earworm often affects only a small portion of the corn ears, and the overall impact on yield or quality of the corn may be limited. Consequently, farmers and pest management specialists may choose to monitor the situation rather than intervene aggressively, allowing natural pest control mechanisms and beneficial insects to help manage populations without unnecessary pesticide application. This strategic approach reflects a consideration of both economic viability and environmental stewardship in pest management decisions.