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Multiple grasshoppers feeding on a corn ear.

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.

Combine harvesting wheat.

Weed Management After Wheat Harvest

Most of the winter wheat has been harvested in South Dakota and spring wheat harvest is underway. While the growing season is over for the wheat, post-harvest weed management is important to minimize the amount of weeds that are present in the spring

Wheat plants infected with wheat streak mosaic virus.

Volunteer Wheat and Kochia Management With Herbicides Will Likely Require Two Passes

Wheat curl mites, which carry wheat streak mosaic virus, use volunteer wheat and grass weeds as secondary hosts to infest recently planted winter wheat crops. Therefore, effective management of these plants before winter wheat planting is critical.

Green wheat leaves with yellow streaks throughout.

Wheat Streak Mosaic Virus Complex: Breaking the Green Bridge

As wheat harvest proceeds, it won’t be long until winter wheat planting is underway in South Dakota. To effectively reduce wheat streak mosaic virus, it is important to manage the green bridge effect to slow spread of disease in newly emerging wheat fields.

Corn leaf samples with Southern Rust and Tar Spot.

Corn Diseases in South Dakota Update

Several South Dakota counties have confirmed positive cases of Southern Rust and Tar Spot this growing season. See our latest recommendations for dealing with these diseases before they become a problem.

A green field bindweed with a white flower at top.

In a Bind With Field Bindweed?

It’s August and field bindweed, one of our most-persistent perennial weeds, is flowering. Although field bindweed is not statewide noxious, it’s locally noxious in Bennett, Bon Homme, Clarke, Lake, Stanley, and Yankton counties.

Green plant with evidence of honeydew and an aphid colony.

Aphids Infesting Corn in South Dakota

Aphid populations are taking off in some southeastern South Dakota corn fields. The two aphid species that are commonly observed in corn include the corn leaf aphid and the bird cherry oat aphid.

Living trust and estate planning
Feb 03 - 17

Sustaining the Legacy @ Aberdeen

Join SDSU Extension and industry professionals for a three-day estate planning and farm succession conference on February 3, 10 and 17, 2026, at SDSU Extension Aberdeen Regional Center (13 2nd Ave. SE, Aberdeen, SD 57401). Each day begins at 10:00 a.m. and concludes at 4:00 p.m.

Sihlouette of farmers shaking hands with a tractor in the background
Mar 03 - 17

Sustaining the Legacy @ Watertown

Join SDSU Extension and industry professionals for a three-day estate planning and farm succession conference on March 3, 10 and 17, 2026, at SDSU Extension Watertown Regional Center (1910 West Kemp Avenue, Watertown, SD 57201). Each day begins at 10:00 a.m. and concludes at 4:00 p.m.

Cattle using a fabricated windbreak in north western South Dakota.

Don’t Discount the Need for Vitamin A and E in Beef Cows During Winter

Supplying sufficient Vitamin A and Vitamin E to cows in late gestation is important every year. Vitamins A and E are plentiful in green forages, but tend to be much lower in hay and winter range and continue to decline as the fall and winter progress.