Corn Earworm Control: Timing Is Everything

Protect Silks at the Right Moment

• Mechanical: Clothespin at silk emergence.
• Oil treatment: Mineral or vegetable oil at silk tips 2 days after full silk (when silks start browning). Too early prevents pollination.
• Chemical dusts: Carbaryl (Sevin) or permethrin (Eight) give a wider treatment window.

Organic and university resources linked in the original article.