Corn Pest Spread Alerts Nebraska Growers

By Scout Nelson

The early detection of the corn leafhopper has increased concern among agricultural experts in Nebraska. Although this pest has not yet caused major yield losses in the state, its early presence in nearby regions shows the need for careful monitoring. Farmers and crop managers are advised to stay alert as corn crops move through important early growth stages.

Corn leafhopper, scientifically known as Dalbulus maidis, is a small insect that feeds corn plants. It can spread harmful plant diseases, especially corn stunt disease. This disease is often caused by a spiroplasma pathogen that the insect carries from one plant to another. When plants become infected, they may show stunted growth and reduced productivity.

The pest and the disease were first confirmed in Nebraska in 2024. This marked part of a larger spread of the insect into 11 new states across the central and southern Great Plains. This expansion raised concern among agricultural scientists and farmers about its future impact on crop health.

In 2025, another important development was reported when corn stunt spiroplasma was found in a sample from Valley County, Nebraska. This confirmed that infected leafhoppers had reached central parts of the state. This discovery highlighted how quickly the pest and disease can move across regions.

Even though major crop damage has not yet occurred, experts strongly recommend regular field scouting. Early detection helps farmers identify problems before they spread widely. Monitoring fields also supports better pest management and helps reduce the risk of disease outbreaks.

Farmers should check their fields regularly, especially during early growth stages when crops are more vulnerable. Observing signs of insect activity or unusual plant growth can help in taking timely action.

Overall, increased awareness and proper scouting practices are key to protecting corn crops. By staying informed and alert, farmers can reduce risks and support healthy crop growth in Nebraska.

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