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The Overlooked Impact of Flooding on Crops, Soils and Food Systems

By Esther Ngumbi and Christy Gibson

Across the United States, record breaking extreme weather events have already occurred, including severe storms and Tornadoes in the State of Illinois to flooding in Texassouthern Wisconsin and the South. Throughout the summer, and the remainder of the growing season, additional severe weather events will come through including several hurricanes and tropical storms beginning with Tropical Storm Arthur.

While the impacts of severe weather on people, communities, and infrastructure dominate headlines, the damage flooding inflicts on agricultural systems, crop productivity, and food security often goes unnoticed and underestimated.

Equally concerning is the noticeable lack of focused dialogue among researchers, policymakers, and other key stakeholders in agricultural crop production and food systems, including farmers, about whether current best management practices and innovations are keeping pace with efforts to mitigate the negative impacts of severe weather and flooding on agriculture.

Flooding can affect agricultural crops, including corn and vegetables like tomatoes, in many ways. These effects range from altered growth patterns and the wiping out of millions of acres of crops to tons of unsellable vegetables due to potential contamination from floodwaters.

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Dr. Fei Yang Discusses Corn Rootworm, European Corn Borer, and Pest Monitoring

Video: Dr. Fei Yang Discusses Corn Rootworm, European Corn Borer, and Pest Monitoring

What insect threats are Minnesota corn growers facing, and what research is helping farmers stay ahead of them?

At the 2026 MN Ag Expo, University of Minnesota entomologist Fei Yang shared updates on three Minnesota Corn-supported research projects focused on insect monitoring, seed treatments, and pest resistance.

Current work includes statewide monitoring programs that use pheromone, light, and sticky traps to track key pests such as black cutworm, true armyworm, corn earworm, European corn borer, and corn rootworm. Researchers are also evaluating whether high-rate seed treatments provide effective corn rootworm control and studying the development of resistance in European corn borer populations to Bt corn traits.

These projects help researchers better understand pest pressures across Minnesota and provide farmers with practical information to support informed management decisions.