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Left: Black soil tarp on a research plot. Right: The same research plot uncovered, revealing little-to-no weed pressure.

Early Season Soil Solarization and Occultation Impacts on Weed Pressure and Onion Yield in Eastern South Dakota: Year 2 (2024) Results

Research report on whether soil tarping can reduce weed pressure in onion yields for the second year

Young farmer analyzing data on a tablet computer beside a crop sprayer.

Over-The-Top Dicamba Applications Are Not Legal in Soybean for 2025

The registration for dicamba labels for over-the-top applications in tolerant soybeans have been pulled for the 2025 growing season. Many producers are aware of the situation, but planning weed management strategies should start today.

A combine harvesting soybeans and emptying them into a nearby tractor trailer

Evaluating the Economic Consequences of Possible Section 199A(g) Expiration of Agricultural Cooperatives in the Upper Midwest

A comprehensive evaluate of the potential economic impact of Section 199A(g) deduction sunsetting on agricultural cooperatives and rural communities.

Green plant with bright yellow flowers throughout.

Effects of 2,4-D with and without wiper-applied glyphosate on leafy spurge (Euphorbia esula) treated-shoot, shoot regrowth, and root biomass

Fact sheet on the effects of 2,4-D with and without wiper-applied glyphosate on leafy spurge.

A sprayer applying liquid herbicides on corn

While Illegal in Tolerant Soybean, Dicamba Can Still Be Applied in Other Crops

While dicamba labels (i.e., Engenia, Tavium, and Xtendimax) for over-the-top applications for tolerant soybeans have been pulled for the 2025 growing season, the herbicide can still be applied in other crops. Below is a guideline for dicamba use in various crops.

Five youth stand in front of banners holding a sign that says "South Dakota"

SDSU Extension 4-H members compete at national FCS contest

February 20, 2025

The FCS skill-a-thon team won fifth place in the life skills assessment. The team members were Anna Johnson, Norman Johnson and Ada Sharp, of Brown County; and Mercedes Jones, of Buffalo/Jerauld counties. Their team coach is Aubrey Anderson, SDSU Extension 4-H Educator, Minnehaha County. Samantha Brenden, of Clark County, placed fourth in modeling and fifth overall for a constructed outfit in fashion revue.

Lush, green forage growing in a field.

SDSU Extension releases updated crop budgets tool

February 28, 2025

Producers and financial advisors can use the spreadsheets as a template to input their own costs and get an estimate on profits. The spreadsheet includes tabs for fertilizer and pesticide and commodity estimates for different regions of the state, including high- and low-production areas.

Professional portrait of Graig Reicks

SDSU Extension welcomes new Weed Ecology Field Specialist

February 28, 2025

In his role, Reicks will provide guidance for weed management in specialty crops, pastures and rangelands, organic systems, lawns/gardens and public right-of-ways. He is based in Brookings.

silver maple tree

Tapping Maples for Sap

Fact sheet on how to tap maple trees for sap.

Wheat plants exhibiting severe symptoms of rust.

SDSU Plant Diagnostic Clinic provides fast diagnoses of plant diseases

March 07, 2025

South Dakota State University Plant Diagnostic Clinic is the only public diagnostic clinic for plant diseases in South Dakota and receives more than 1,500 samples each year.