Virgil Schmitt is the Iowa State University Extension field agronomist for east-central and southeast Iowa.
Serving the Iowa counties of Cedar, Clinton, Delaware, Des Moines, Dubuque, Henry, Jackson, Lee, Louisa, Muscatine, and Scott. His areas of expertise include agronomy, Integrated Pest Management and crop management. He's worked as an Extension 4-H leader and has taught high school and college-level ag education.
Corn Source: While not as widespread in Iowa in 2020, tar spot has been identified in all but the westernmost counties of the state.
Corn Source: Unusual conditions in 2020 raise questions about how much nitrogen to apply for next year.