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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.

Paul O. Johnson making notes about a field of corn

SDSU Extension to Tackle Weed, Pest and Drought Inquiries at State Fair

August 23, 2021

To address drought concerns, as well as weed and pest inquiries, South Dakota State University Extension will feature two booth locations at the 2021 South Dakota State Fair Sept. 2-6 in Huron.

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.

Canada thistle growing in a pasture.

Noxious Weeds of South Dakota

Pictorial reference guide of noxious weeds in South Dakota

2022 4-H Volunteer Hall of Fame Awardee with family.

South Dakota 4-H Recognizes Volunteers during the 2022 State Fair

October 19, 2022

South Dakota 4-H inducted nine individuals into to the 4-H Volunteer Hall of Fame and 4-H Shooting Sports Volunteer Hall of Fame on Sunday, Sept. 4, at the 2022 South Dakota State Fair in Huron, South Dakota.

Youth being fitted with a bike helmet.

4-H Bike Rodeo and Safety

Overview document including complete lesson plans for a 4-H Bike Rodeo and Safety program to make youth aware of the importance of riding their bike.

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.

Two young males participating in the robotics challenge at the South Dakota State Fair

South Dakota 4-H Robotics & Engineering 2019 Challenge Packet - Recycle Challenge

The South Dakota 4-H Robotics Challenge is an opportunity for youth who have been learning about robotics to demonstrate their learning, celebrate their accomplishments, and interact with others who share an interest in robotics.

young cowgirl running a horse through the pole bending pattern

State 4-H Rodeo Resources

View the documents and forms to participate in the State 4-H Rodeo.