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A field divided into two planting areas. The left area has young corn plants emerging from the soil. The right has no visible corn emergence yet.

Grassy Weeds

Grassy weeds are a problem in all field crops. They must be identified at early stages of growth so they can be controlled before crop yields are seriously threatened. Control measures are not the same for all grassy weeds, so accurate seedling identification is important.

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

2017 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.

A color-coded map of the United States indicating precipitation outlook for June 2019.

June 2019 Climate Outlook for South Dakota

As South Dakota emerges from the wettest 12-month period in 124 years of climate recordkeeping (June 2018-May 2019), June has started warmer and drier than average. The outlook, however, turns towards cooler and wetter than average again for the middle of the month.

A thick patch of yellow, flowering leafy spurge plants growing in a pasture.

Spot Treatment Options for State Noxious Plants

When controlling grassland weeds, the mindset of row crop weed control may be put into practice too often. In most cases, broadcast control of weeds in grasslands is rarely necessary. Most often, spot treatment can be used more effectively to manage the noxious and invading weeds.

grass with field bindweed, a viny green weed with white flowers

2018 Weed Control Noxious Weeds

Noxious Weed Recommendations: Herbicides for pasture, range, and non-crop areas, including roadside and other right-of-way that may be harvested for hay or grazed, are given a priority.

Field with field peas and blue sky with fluffy white clouds

An identification guide of common Diseases of Dry Peas in South Dakota

A guide depicting common diseases of Dry Peas in South Dakota

Several small green insects on a plant leaf.

Soybean Aphids in South Dakota

Factsheet on Soybean Aphids in South Dakota

Color-coded map of the United States indicating predicted precipitation for July 2019. South Dakota is set to experience above normal precipitation.

July 2019 Climate Outlook: Challenges Continue

This year’s seasonal pattern of wetter than average conditions is projected to continue through July and the rest of the summer season. The latest climate outlook, released June 20, 2019, shows an increased chance of wetter than average conditions in the next one to three months for the state of South Dakota.

Small group of cattle eating plants near a fenceline

Cows Eat Weeds

By utilizing grazing as a means of cultural control, producers have the potential to decrease input expenses while reaping the benefits of inexpensive weed control through animal nutrition.

patch of reed canary grass in pasture

Reed Canary Grass: Possible Prussic Acid & Alkaloid Issues

Prussic acid issues with reed canary grass are poorly understood and may go unrecognized if they occur. This article addresses a little-known but interesting aspect of the biology of reed canary grass.