Noxious Weeds

The spread of noxious weeds on public, state trust and private lands in southeastern Arizona poses risks to native and rangeland animals, threatens biodiversity and native plant species, damages park land and natural resources, and causes economic hardship for farmers, ranchers, and municipalities.

Weed Photo Library

Northern Arizona Invasive Plants

Provides facts and photos that will help residents of northern Arizona identify and control the invasive plants most likely to be found in their yards and neighborhoods.

Non-Native Invasive Plants of Arizona

The booklet is not intended to provide a comprehensive list of all of Arizona’s invasive weeds, but rather, it illustrates a few invasive plants that have become, or have the potential to become, problematic in Arizona.

Field Guide for Managing Annual and Biennial Invasive Thistles in the Southwest

This field guide serves as the U.S. Forest Service’s recommendations for management of annual and biennial invasive thistles in forests, woodlands, and rangelands associated with its Southwestern Region.

Guidelines for Spot Spraying Noxious Weeds

Includes steps, charts and images.

Top Five Noxious Weeds

Field Guide for Managing Sweet Resinbush in the Southwest

This field guide serves as the U.S. Forest Service’s recommendations for management of sweet resinbush in forests, woodlands, and rangelands associated with its Southwestern Region.