Survey of organic sweet corn growers identifies corn earworm prevalence, management and opportunities for plant breeding
2021
Moore, Virginia M. | Tracy, William F.
Corn earworm (Helicoverpa zea) is one of the most important pests in organic sweet corn (Zea mays) production. Breeding of corn earworm-resistant varieties has been identified as a potential approach to deal with this pest, but it is critical that plant breeding efforts reflect the contexts and needs of organic producers who might eventually adopt earworm-resistant varieties. In November–December 2017, we surveyed organic sweet corn producers in the U.S. to learn about impacts of corn earworm on organic sweet corn production, how producers are currently managing the pest and opportunities for plant breeding to reduce its overall impact. The survey confirmed that corn earworm is the most challenging insect pest for organic sweet corn producers, that current management options remain limited and that earworm-resistant varieties could improve the ability of growers to consistently produce damage-free sweet corn and to improve the value of sweet corn within organic operations.
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