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U.S. Environmental Protection Agency offices in Washington, D.C.

Update on Chlorpyrifos Use in South Dakota

As of June 30, 2025, the labeled uses for chlorpyrifos products for food and feed are limited to alfalfa, soybean, and wheat in South Dakota. Chlorpyrifos can no longer be used to treat sunflowers.

soybean plants showing difference in pods

Soybean Planting Population: A Review

There have been reports in recent years that agronomists in states such as Iowa, Nebraska and Wisconsin have observed success when reducing soybean planting populations.

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.

Livestock guardian dog resting near a flock of sheep.

Livestock Guardian Dogs for Improved Protection

Most sheep producers will use a variety of methods to protect their flock, but one that has increased interest is the use of livestock guardian dogs.

Green leaves emerge from the soil as old brown stems are falling over in a garden covered in brown leaves.

Spring Garden Maintenance

With a little planning and foresight, spring garden preparation can be a manageable task that allows you to enjoy working outside while waiting on warmer days for planting.

SDSU Extension Announces Interim Leadership Roles

September 24, 2025

The South Dakota State University College of Agriculture, Food and Environmental Sciences has announced interim roles for several SDSU Extension leadership positions.

Field showing sheet and rill erosion following a heavy rain event.

Soil Erosion Mitigation During Heavy Rainfall Events

Adopting soil health practices that minimize disturbance, increase surface cover and organic matter content, and keep roots growing in the soil can help to increase soil infiltration rates and reduce destruction of soil aggregates from heavy rain.

Cattle using a fabricated windbreak in north western South Dakota.

Guidelines for Livestock Windbreaks

Livestock grazing open crop residue fields or large pastures can be left exposed during extreme bouts of cold. Ensuring that cattle and any other livestock being pastured in exposed areas have adequate access to shelter to escape the wind and cold is especially important.

Illustration of a stable fly, horn fly and face fly.

Fly Control Considerations for Cattle on Pasture

Along with being irritants to livestock, horn flies, face flies and stable flies are economically important to producers due to their negative impacts on milk production and calf weaning weights.