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Small group of bison on rangeland.

Decoding Bison Dietary Selection: More Than Just Grass

While bison are often thought of as quintessential grazers, their diet is surprisingly variable. However, they also snack on non-grass species throughout the year.

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.

South Dakota State University Extension logo

SDSU Extension welcomes new swine field specialist

March 11, 2025

South Dakota State University Extension is pleased to welcome Kaylyn Rudy as the new SDSU Extension Swine Field Specialist.

Professional portrait of Rafe Royall

SDSU Extension welcomes new swine specialist

March 11, 2025

South Dakota State University Extension is pleased to welcome Rafe Royall as a new assistant professor and SDSU Extension Swine Specialist.

tall trees in the Black Hills

How to Identify an Ash Tree Infested by Emerald Ash Borer

This guide will help you determine whether an ash tree may be infested by the emerald ash borer.

Youth inspecting swine in pens

SDSU Extension hosting 2025 Swine Summit for youth

March 18, 2025

South Dakota State University Extension is pleased to host the 2025 South Dakota Swine Summit on June 12, 2025, on the SDSU campus in Brookings.

herd of beef cattle grazing in a pasture

Pre-weaning Pneumonia in South Dakota Beef Herd: A Persistent Problem, Suddenly Gone

This case report describes a southeastern South Dakota cow-calf herd’s experiences with pre-weaning pneumonia. Unlike many beef herds that experience pneumonia in calves on pasture, this herd’s problems were consistent year after year: widespread calf illness was documented in each of 6 consecutive summers. Anecdotally at least, the occurrence of pre-weaning pneumonia in beef herds is more likely to be sporadic and unpredictable from year to year. This herd’s persistent problems were followed by a year in which, after a change in calf vaccination protocol (informed by herd diagnostics), very little pre-weaning pneumonia was observed.

Group of mixed cattle grazing drought-stressed pasture.

Maintaining Cow Herds in Times of Limited Fall and Winter Moisture

Lack of moisture has been a common theme for a majority of beef cattle producers in the Northen Great Plains the last few years. These conditions cause beef producers to stretch grazing resources and feed inventory reserves.

A veterinarian and producer observing a group of animals in a facility.

Bangs Vaccine and Talking to Your Veterinarian

As spring arrives, many cattlemen have selected their replacement heifers for breeding and should be considering pre-breeding and brucellosis vaccination in their replacement females as soon as possible to set them up for a successful breeding season.