One of the most inclusive sites dedicated to invasive and exotic plant species in North America. Any species, including its seeds, eggs, spores, or other biological material capable of propagating that species, that is not native to that ecosystem; and whose introduction does or is likely to cause economic or environmental harm or harm to human health.

A portal to Forest Service invasive species information and related management and research activities across the agency and with our many partners. The goal of the USDA Forest Service invasive species program is to reduce, minimize, or eliminate the potential for introduction, establishment, spread, and impact of invasive species across all landscapes and ownerships . The Invasive Species Program integrates many divisions of the agency.

Sponsored by Utah State University Extension Services, The Weed Web is designed to educate students and the general public about noxious weeds. The site provides basic identifications and background history of weeds affecting North America. Peruse a photo library, weed ecology and control methods.

Also sponsored by Utah State University Extension Services, Weed Control is dedicated to common lawn and garden weeds.

A companion website, sponsored by Utah State University Extension Services, to Weed Control. Landscape and Garden Weed Control offers detailed information about;

• Herbicide Application Equipment
• Sprayer Calibration
• Lawn Weed Control
• Ornamental Weed Control
• Vegetable Garden Weed Control
• Weed Control in Fruit Trees, Grapes, and Berries
• Weed Control in Parking Areas and Driveways
• Brush, Tree, and Stump Removal
• Chemical Names of Selected Active Ingredients
• General Rules for Weed Control

In administering the Utah Noxious Weed Control Act, the State Weed Specialist coordinates and monitors weed control programs throughout the state. Surveys of serious weed infestations are conducted and control programs are developed through the county supervisors, county weed boards, and various landowning agencies.

Invasive and exotic plants are degrading wildland ecosystems at a rapid and ever-increasing rate. Without major increased exotic plant management efforts, these aggressive plants will continue marching through rangelands and farms that we value so highly. Only if we act quickly, both locally and regionally, will cooperative invasive plant management be economical and effective.

A web-based project of the Plant Conservation Alliance's Alien Plant Working Group, that provides information for the general public, land managers, researchers, and others on the serious threat and impacts of invasive alien (exotic, non-native) plants to the native flora, fauna, and natural ecosystems of the United States.