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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.

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.

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 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.

Monarch butterfly collecting pollen on a blazing star plant.

Understanding the Critical Role of Broadleaf Pollinator Plants in Pastures

Understanding the economic role of pollinators is the first step towards understanding their diverse values to grassland and crop systems.

A stock pond with noticable blue-green algae bloom throughout.

Blue-Green Algae and Livestock

With warmer temperatures, the conditions are right for blue-green algae blooms. Different species of blue-green algae contain various toxins, which can poison livestock, resulting in rapid death.

Close-up of the feet of a man standing on a bathroom scale with a blue towel lying nearby.

Overweight & Obesity: Leading Cancer Risk Factor

The Centers for Disease Control and Prevention released a study that links overweight and obesity to 13 different types of cancers.

An older man with his back to the camera looking over a pond.

Brain Health: The Impact of Chronic Stress

Stress affects everyone. Stress is your body’s response to a real or perceived harmful situation.

Producer approaching a young dairy calf.

How did a Poultry Germ Change to Cause Severe Disease in Calves and People?

In 2015, a specific strain of a germ called Salmonella heidelberg made 56 people sick in 15 different states.

Flock of mosquitoes in front of sunset.

West Nile in South Dakota: Expect Cases Into Early Fall

While it’s true that in South Dakota most West Nile Virus cases occur during August, new human infections are detected well into September in most years.