Content by Connie Strunk

A plot of land from the side, with plant roots growing down into the soil

SDSU Extension 2025 Crop Hour webinar series starts in January

November 18, 2024

Crop Hour provides producers and industry professionals with information to navigate the
challenges and opportunities of farming in South Dakota. People can participate live via Zoom or watch the recorded presentations on YouTube.

Corn Stunt in South Dakota

In late September, a sample received from Deuel County was confirmed positive for corn stunt, a disease spread through corn leafhopper feeding. This diagnosis is the furthest north corn stunt has ever been confirmed and reported in the United States.

SDSU Extension to host disease scouting workshop for corn, soybeans

October 01, 2024

If you have been wondering what you’re seeing in your corn or soybean fields this season, join the SDSU Extension plant pathology team in Volga to see tar spot in the corn field and white mold in the soybean field, or to have your own diseased plant material identified.

Corn leaf with multiple tar spot lesions. The smaller lesions are about the size of a pen tip.

South Dakota Tar Spot Update: September 30, 2024

As of September 26, 2024, our researchers have confirmed the presence of tar spot in 25 counties across the eastern half of South Dakota. The severity of infection has varied anywhere from less than 1% to approximately 20% on individual corn plants.

Rows of empty white, plastic pesticide containers.

2025 Pesticide Container Recycling

The South Dakota Department of Agriculture and Natural Resources is again offering pesticide container recycling services across the state. View a complete list of 2025 dates and locations.

Phytophthora root and stem rot damage observed in a field of soybeans.

Watch Out for Phytophthora Root and Stem Rot in Soybean

Current weather conditions of continuous rainfall are saturating our fields, which is creating a favorable environment for Phytophthora root and stem rot.

Green veins are striking compared to the necrotic (brown) tissue on SDS-infected soybean.

Are You at Risk for Sudden Death Syndrome in Soybean?

The present weather conditions of heavy rainfall and cool temperatures provide a favorable environment for sudden death syndrome in soybeans. Learn some expert tips for identifying and managing it this growing season.

A round microscope picture of a green wheat leaf with yellow colored, stripe rust pustules throughout.

Stripe Rust Confirmed

Stripe rust has been found in winter wheat in Brookings County during recent scouting. The presence of stripe rust at this time indicates that there is potential inoculum source for this rust in our area.

Wheat leaf showing symptoms of Septoria.

Look Out For Early Season Wheat Diseases

Conditions have been favorable for disease development in South Dakota winter wheat fields, especially for Septoria. It’s important to scout fields to determine what diseases are present before deciding to apply a fungicide early in the season.

South Dakota Pest Management Guides

The South Dakota Pest Management guides are now available for free. The guides offer recommendations for controlling weeds, insects, and diseases in a variety of South Dakota crops.