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Tall, slender kochia weed growing in a test plot.

The Fall Advantage of Kochia Control

Kochia is a problem in north central South Dakota row crops. New post-emergent options in corn and soybean have helped alleviate kochia competition from many fields, but these herbicide options shouldn’t be completely relied upon for a long-term control plan.

Small cluster of dandelions among fallen leaves on a lawn.

Fall Weed Control in Lawns

In lawns, fall is the best time to chemically control broadleaf perennial weeds. Examples of these weeds could include dandelions, Canada thistle, creeping bellflower, field bindweed and ground ivy.

a map of South Dakota showing the levels of drought for June 2021

Next SDSU Extension Drought Hour Set for June 28

June 17, 2021

Nearly 90% of South Dakota is now in some level of drought. According to the latest U.S. Drought Monitor, 56% of the state is in the Severe Drought (D2) and Extreme Drought (D3) classifications.

Three poisonous rangeland plants. From left: Hemlock, Halogeton and Buffalo Bur.

Poisonous Plants on Rangelands: Hemlock, Halogeton and Buffalo Bur

Several species of poisonous plants are invasive and can easily establish dense stands when there is a disturbance on rangelands. Hemlocks, halogeton and buffalo bur can all be found throughout South Dakota and are toxic to livestock.

Color-coded drought monitor map of South Dakota. As of July 27, north-central South Dakota is facing extreme drought, while the rest of the state is under abnormally dry to severe drought conditions. A small portion of the southwest has adequate moisture.

Controlling Grasshoppers, Salvaging Drought Corn Kick Off August Drought Hours

August 04, 2021

According to the latest U.S. Drought Monitor, nearly 18% of the state is in Extreme Drought (D3), while another 70% follows as Severe Drought (D2).

A lush, green lawn with a few scattered weeds throughout.

Use Caution With Turf Herbicide Applications During Extreme Heat and Drought

Dry conditions cause weeds to be under stress. This decreases herbicide effectiveness with annual, biannual and perennial plants. So, is there a safe option for weed control in yards during high temperatures and dry conditions?

ALT: Left: Green Plamer amaranth next to a green sunflower. Right: Green plant with green, spiny structure at leaf base.

Palmer Amaranth: Now Is the Time to Scout

South Dakota State University (SDSU) Extension encourages farmers, ranchers and other landowners to start scouting for Palmer amaranth, a weed that has been rapidly spreading north into the United States and is likely to be glyphosate-resistant.

Low larkspur and twogrooved poisonvetch plants growing in rangeland.

Poisonous Plants on Rangelands: Larkspur and Poisonvetch

Larkspurs are the second leading cause for all livestock deaths from toxic plant poisoning. Poisonvetches are considered accumulator plants that uptake excessive levels of selenium and cause toxicity problems in cattle.

A group of people in a soybean field with white insect nets

SDSU Extension to Offer Integrated Pest Management Field School Online

July 30, 2021

South Dakota State University Extension will kick off its 13th annual Integrated Pest Management (IPM) Field School Aug. 1.

A blooming prairie strip with a variety of grasses and wildflowers growing throughout.

Using Prairie Strips To Protect South Dakota Water

Prairie strips are a new continuous Conservation Reserve Program practice that integrates native prairie plantings oriented linearly within a row crop field to reduce soil erosion and runoff.