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Kochia growth spreading amongst a patch of soil.

The Fall Advantage of Kochia Control

Kochia is a problem in row crops in North Central South Dakota. 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 plan for control.

Canada thistle growing in a pasture.

Fall Noxious Weed Control

September 30, 2019

Fall is the time to control tough perennial broadleaf lawn weeds. Good moisture in most places in August will have set up good fall growth of perennial weeds.

Left: Marestail growing in a field. Right: Young marestail plants emerging from soil. A dime is placed near the plant to demonstrate its scale.

Marestail Fall Control

No-till crop production in South Dakota is on the rise. Marestail is a native plant to the United States and is considered either a winter annual or biennial species that is often difficult to identify at the rosette stage. In the Dakota’s, the Marestail population will germinate in the fall and bolt in the spring.

well-cared for lawn with green grass and landscaping brick

Fall Lawn Weed Control

October 02, 2019

Fall is the time to control tough perennial broadleaf lawn weeds. Good moisture in most places in August helped contribute to significant fall growth of perennial weeds.

screened image of South Dakota State University campus with News text

Dandelion Season is Nearly Here

December 18, 2018

Although current weather conditions have detained them, the yellow flowers of spring are beginning to emerge.

a tractor in a field spraying soybeans

SDSU Extension to Host Winter Agronomy Meetings and Private Pesticide Applicator Trainings in Southeast South Dakota

January 03, 2020

SDSU Extension will host winter agronomy meetings in Mitchell, Sioux Falls and Yankton in January 2020.

A close up view of the stem of palmer amaranth which is hairless.

Identification and Management of Palmer Amaranth in South Dakota

Guide for the identification and management of Palmer Amaranth in South Dakota

A herd of cattle gather around a stock pond on a vast, lush grassland. Courtesy: USDA [CC BY 2.0]

Weed Control: Pasture and Range

There are 24 million acres of native and tame pasture and range as well as 1.4 million acres of grass hayland in South Dakota.

sun rising over South Dakota field

South Dakota Pest Management Guides

The South Dakota Pest Management guides are now available for free. The guides offer recommendations for controlling weeds, insects, and diseases in a variety of South Dakota crops.

Sunny field with large puffy clouds and blue sky

2020 South Dakota Pest Management Guides Released

January 24, 2020

The 2020 South Dakota Pest Management Guides are now available for free on the SDSU Extension website.