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Forage

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Rancher surveying pasture in an offroad vehicle.

Use Caution When Fall Spraying Noxious Weeds in Pastures To Avoid Harming Desirable Plants

Noxious weed control is often a long-term process. In some cases, chemical application may be deemed necessary, but it should always be considered in the context of appropriate management and an integrated best management framework.

aerial view of South Dakota farm and surrounding land

Pest & Crop Newsletter

SDSU Extension publishes the South Dakota Pest & Crop Newsletter to provide growers, producers, crop consultants, and others involved in crop production with timely news pertinent to management of pests, diseases, and weeds in South Dakota.

A pasture containing a mixture of grasses and alfalfa.

An identification guide for Alfalfa Insect Pests in South Dakota

Pictorial guide for common insect pests of alfalfa in South Dakota

Canada thistle growing in a pasture.

Fall Noxious Weed Control

Fall weed control can give the best weed control, but it also can be a poor time. If the noxious weeds were sprayed or clipped earlier this summer, and there is good weed growth now, this would be an excellent time to spray these weeds and get a good kill.

Small pale green leafhopper on a green alfalfa leaf.

Potato Leafhoppers in Alfalfa

Potato leafhoppers are a migratory pest that commonly impact alfalfa fields throughout South Dakota. Feeding injury caused by potato leafhoppers resembles drought stress and, if left untreated, can reduce both yield and forage quality.

A pasture containing a mixture of grasses and alfalfa.

Start Scouting for Grasshopper Activity in Crops and Grasslands

Most of Eastern South Dakota is experiencing very low grasshopper populations. However, this is not the case for many areas in Central and Western South Dakota.

Field of mixed cover crops containing oats.

Cover Crop Considerations for 2020

Producers across South Dakota are harvesting small grains. These crops provide an excellent window for adding a cover crop into your rotation.

A field of flowering alfalfa.

Nitrate QuikTest for Forages Available at Locations Across South Dakota

August 10, 2020

The Nitrate QuikTest for forages is available at various SDSU Extension locations across South Dakota.

Three photos of blister beetles. The first is a black colored blister beetle on a purple flower. The second is a gray colored blister beetle on yellow flowers. The third is an orange-brown colored blister beetle feeding on a green leaf.

Check Alfalfa for Blister Beetle Activity

Blister beetles are becoming more common as we progress through the growing season. Recently, there have been multiple reports of blister beetles showing up in alfalfa fields.

A group of red and white calves grazing in a field of switchgrass.

Integrating Perennial Crops in Annual Crop Rotations

The Dakota Lakes Research Farm is working to develop cropping systems that include perennial crops, such as switchgrass, big bluestem and alfalfa, to improve long-term soil health and farm productivity.