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The Pactola Lake reservoir near Rapid City, South Dakota.

Water Quality Standards in South Dakota

Fact sheet to raise awareness among citizens of South Dakota about the Water Quality Standards in the state.

A group of brown cattle foraging in a green field.

Prussic Acid Poisoning

As the first frost date approaches, producers often have concerns about the risk of prussic acid poisoning in livestock. Certain forage plants, especially sorghums and related species are associated with an increased risk of death loss because of prussic acid poisoning.

Color-coded map of South Dakota indicating the number of classes of change in drought conditions from June 3 to September 2, 2025. For a detailed description, please call SDSU Extension at 605-688-4792.

Summer 2025 Climate Review and September Outlook

A record wet August in several locations marked the end of South Dakota’s meteorological summer. One challenge coming this fall will be determining how quickly field and crop conditions dry down to allow harvest activities to progress.

Old barn and windmill with the sunset in the background

SDSU Extension hosts Sustaining the Legacy Conferences

October 28, 2025

South Dakota State University Extension will continue to assist farmers and ranchers with long-term planning through its Sustaining the Legacy conferences across South Dakota this winter.

Swarm of mosquitoes.

West Nile Virus Update: October 16, 2025

As of October 16, 2025, the South Dakota Department of Health reported 86 human cases of West Nile virus from Aurora, Beadle, Bon Homme, Brookings, Brown, Charles Mix, Clay, Codington, Corson, Douglas, Grant, Gregory, Haakon, Hamlin, Hand, Hughes, Hutchison, Hyde, Lawrence, Lincoln, Marshall, Meade, Miner, Minnehaha, Pennington, Roberts, Sanborn, Spink, Stanley, Todd, Union, Walworth, and Yankton counties.

Old barn and windmill with the sunset in the background

SDSU Extension hosts Sustaining the Legacy Conferences

November 03, 2025

South Dakota State University Extension will continue to assist farmers and ranchers with long-term planning through its Sustaining the Legacy conferences across South Dakota this winter.

Professional portrait of Ryan Lefers

SDSU Extension welcomes new water specialist

October 29, 2025

South Dakota State University Extension is pleased to welcome Ryan Lefers as the new Griffith Endowed Chair in Agriculture and Water Resources, South Dakota Water Resources Institute Director and SDSU Extension Water Management Specialist.

Cattle grazing in a rangeland area. Three magnifying images show close-up photos of native pollinators visiting forbs growing in the same area.

Rangeland Wildflowers: Their Value to Livestock and Pollinators

Native wildflowers and shrubs are critical to providing a wide array of services that increase the resiliency of rangelands, provide pollinator habitat, and contribute to livestock nutrition.

Person reviewing and marking up documents with a pen and post-it notes.

Organize this! Why Clear Handwriting Matters for Legal and Financial Documents

When preparing legal and financial documents, it’s essential to write letters and numbers clearly to avoid potential errors. Learn about some commonly confused letters and numbers in handwriting to avoid mix-ups and mistakes in your own records.

Professional portrait of Heather Gessner

SDSU Extension to discuss estate tax at Sustaining the Legacy conferences

December 03, 2025

South Dakota State University Extension will continue to assist farmers and ranchers with long-term planning through its Sustaining the Legacy conferences across South Dakota this winter.