Forage

You Can’t Manage What You Don’t Measure: Range Record Keeping

Range record keeping helps detect and demonstrate landscape changes that have a direct impact on your ability to maintain or grow your herd.

Have you observed chemical management failure for alfalfa weevils?

SDSU Extension entomologists are currently looking for alfalfa fields with a past alfalfa weevil insecticide failures. We are collaborating with North Dakota State University and the University of Minnesota on project to determine if pyrethroid resistance exists in our respective states.

South Dakota Grasshopper Prediction for 2026

Almost every year in South Dakota there is a risk that grasshopper populations will reach levels capable of causing issues for producers. Unfortunately, our prediction for the 2026 growing season won’t change the trend.

Drought Conditions Magnifying Impact of Black Grass Bugs

Black grass bugs are a common early-season pest of forage grasses. Drought conditions exacerbate their impact by stressing plants and reducing their ability to tolerate and recover from feeding injury.

Start Management Plans Now: Absinth wormwood, Canada thistle and leafy spurge have emerged and are starting to grow

Absinth wormwood, Canada thistle and leafy spurge have emerged and are growing in eastern South Dakota. If not effectively managed, these weeds can displace desirable forage in pasture and rangeland.

Diversifying Your Forage Base for Drought Flexibility

While no single strategy eliminates drought risk, diversifying the forage base can offer producers added flexibility by spreading risk across species, planting windows, and rooting depths.

Effects of Late Spring Frost on Alfalfa

Forage research indicates that, although alfalfa is considered to have good cold temperature tolerance, minor frost damage may occur when plants are exposed to air temperatures slightly below freezing for several hours, and more severe damage will be seen when temperatures drop below 25°F for four or more hours.

Crops

During the growing season, SDSU Extension provides weekly production recommendations.

Managing Alfalfa Under Drought Stress

No one hopes for drought, but if the season should progress into a dry one, these are some considerations to make to ensure the best possible outcome for alfalfa crops.