Forage
Let SDSU Extension know how alfalfa insects are affecting you
January 29, 2026
South Dakota State University Extension is encouraging forage producers to participate in a survey about managing alfalfa insects.
Sorghum Trial Results
In 2025, sorghum trials were conducted in 2 locations in South Dakota.
Weed Control Field Test Data
Data books to use as a reference to select appropriate herbicide(s) for row crops
Cover Crops
The benefits of planting cover crops are numerous.
Learn about alfalfa weevil at Northern Plains Forage Association annual meeting
November 17, 2025
South Dakota State University Extension encourages producers to attend the Northern Plains Forage Association annual meeting and seminars, which will feature forage-related education and research.
Yellow Toadflax Has Begun Producing Seeds: Scout before treating infested areas
Yellow toadflax is a perennial weed that infests pasture and rangeland across South Dakota. This year, with an abundance of heat and moisture, plants flowered in early August and now have started to produce seeds.
SDSU Extension welcomes new crop and livestock field specialist
September 12, 2025
South Dakota State University Extension is pleased to welcome Parker Witt as a new Crop and Livestock Field Specialist.
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.
Grasshopper Populations Continue to Cause Issues in South Dakota
Recent reports of crop loss along field edges indicate that grasshopper populations in some areas of South Dakota are well above threshold. Unfortunately, crops are often the target of these moving populations.
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.