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Tar Spot Confirmed in South Dakota

Trace amounts of tar spot were recently found in Yankton and Bon Homme counties and are thought to have originated from corn residue instead of windblown spores. This speaks to the importance of crop rotation in the management of this disease.

Southern Rust Observed in South Dakota Corn Fields

Southern Rust was recently confirmed in South Dakota corn fields. Yield impacts from Southern Rust can be high, so scouting for the disease is highly encouraged to determine if it is present.

Watch for Blister Beetles in Later Alfalfa Cuttings

The frequent rain events experienced this summer has helped boost forage production. Although this is great for growers, the possibility of encountering blister beetles at harvest increases later in the summer.

Strong, Effective Herbicide Programs Can Be Complimented With Narrow Row Spacing

While strong herbicide programs will result in effective weed management, a cultural tactic, such as row spacing can result in a complementary increase in effectiveness.

Are Fungicides Needed On Hail-Damaged Crops?

Recent storms brought rain, severe wind, and hail. With the hail and wind damage that occurred, many growers are wondering if a fungicide application is needed to protect their hail or wind-damaged crops.

Receiving Management Matters

There are multiple factors that influence cattle help during transportation and receiving. Proper management during these events can avoid negative implications to health and performance.

SDSU Extension experts to attend 2025 Dakotafest

August 06, 2025

South Dakota State University Extension experts will attend the 2025 Dakotafest trade show in Mitchell, providing educational resources and hands-on activities for a variety of topics.

Late-Season Crabgrass Control

At the start of August, crabgrass is often prevalent in lawns. Ideally, this weed should be controlled earlier in the season, but if early management was missed, a post-emergence herbicide can help control it before it produces more seed.

White Thistle Disease: Biological management at work

White thistle disease can be seen among many Canada thistle plants throughout South Dakota this growing season. Plants infected with the disease exhibit significant reductions in both growth and seed head compared with non-infected plants.

Reports of Pyrethroid Failures for True Armyworm Caterpillar Management

True armyworm caterpillars reached thresholds in oats and wheat in many areas of South Dakota recently. Management efforts to reduce populations had varying levels of success, with SDSU Extension receiving numerous reports of pyrethroid insecticide failures.