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Two poisonous rangeland plants. Left: Woolly Locoweed.  Right: Lambert Crazyweed (Purple Locoweed).

Poisonous Plants on Rangelands: Locoweed and Crazyweed

Locoweed and crazyweed are found throughout South Dakota rangelands, and both can cause livestock poisoning.The names locoweed and crazyweed are often used interchangeably. However, there are notable differences between the species.

A green cut alfalfa field dries as the sun sets.

Forage Inventory and Demand Calculator

Calculator for inventorying livestock and forage on hand to determine additional forage purchase needs, or livestock sales.

Three woody plants. From left: Ponderosa pine tree, chokecherry bush and greasewood.

Poisonous Plants on Rangelands: Woody Species

Several woody plant species that are poisonous to livestock are found throughout South Dakota rangelands, including ponderosa pine, chokecherry, greasewood and broom snakeweed.

Rolling, drought-stressed pasture with new, green growth emerging in early fall.

Be Careful Grazing the Green this Fall

With fall grazing on the horizon, nearly all of South Dakota is still experiencing drought conditions. Regardless of where your ranch is located, a rancher must be very careful when grazing the fall green-up of cool-season grasses.

several small eastern red cedar trees growing in rangeland

‘Baa-d Cedars’ Field Day Examines Goat-Targeted Grazing on Cedars

September 17, 2021

South Dakota State University Extension invites the public to an interactive Eastern Red Cedar Management Field Day to see the impact goats can have in controlling the most widely distributed conifer across eastern North America.

A reddish brown calf with a white face grazing in a snow covered pasture

Opportunities for Swath Grazing in South Dakota

Fact sheet on the opportunities for Swath Grazing in South Dakota

Canada thistle growing in a pasture.

Noxious Weeds of South Dakota

Pictorial reference guide of noxious weeds in South Dakota

A cow at the Cottonwood Field Station with her head in the green colored chamber of the GreenFeeder

Range Roundup: Precision Technology to Measure Cattle Methane Emissions and Intake on Western S.D. Rangelands

In a recent research project, our precision livestock team deployed technology to measure individual cattle methane emissions and feed intake by disappearance. Learn how this data can be used to help improve day-to-day management decisions on the ranch.

A dog eating out of a bowl.

Pet Food & Pet Treats

In South Dakota the Department of Agriculture Feed & Animal Remedy Program is the agency that oversees the manufacturing, licensing and labeling of animal feeds and remedies. Local foods producers interested in selling pet foods or pet treats need to be in compliance with this program.

A herd of cattle grazing near a pond on an open range.

Nitrates and Livestock Water Quality

Nitrate poisoning is something we think about with forages such as millet, oats, corn, sorghum, sudan, kochia and others that have been fertilized or if there is a drought, but water can also be a contributing factor.