Cool, Wet Spring Raises Pest Risks for Wisconsin Crops in 2026
Cool, Wet Spring Raises Pest Risks for Wisconsin Crops in 2026
US · Published May 14, 2026
Wisconsin farmers are facing heightened pest risks this spring due to cool and wet weather conditions, which have created an ideal environment for pests like slugs, true armyworms, and alfalfa weevils.
According to Emily Bick, an entomologist with the University of Wisconsin Extension, these conditions are particularly concerning for crops such as soybeans, corn, and alfalfa.
Slugs, which thrive in high-moisture soils and no-till fields, are expected to cause significant damage, especially to soybeans.

Why It's Important?

The primary risks include significant crop damage and yield losses for Wisconsin farmers. Slugs are particularly harmful to soybeans, as their feeding can damage the exposed growing points early in the season. True armyworms pose a time-sensitive threat, with their larvae capable of destroying crops quickly if not treated early. Alfalfa weevils are another concern, as their larvae can cause extensive defoliation, impacting both yield and forage quality. These pests could lead to increased costs for pest control and reduced profitability for farmers if not managed effectively.

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