TUCSON, Ariz. (KGUN) — The 15 sheep working on “A” Mountain have a simple job: eat as much invasive buffelgrass as they can. Sonya Norman works with the Arizona-Sonora Desert Museum, and explained ...

PHOENIX — Marilyn Hanson takes a 3-mile walk every day along a river wash and bike path northwest of Tucson. While she walks, she listens for birds and surveys the areas along the path for invasive ...

TUCSON, Ariz. (KVOA) — Organ Pipe National Monument has amazing looking cacti that are similar to the classic Saguaro but unique. These are disappearing and a big reason why is because of those ...

Arizona already has more than 144,900 lane miles of road. That’s enough pavement to stretch across the United States 54 times. The proposed Interstate 11 — which would run from the state’s border with ...

The saguaro, the iconic cactus of the Southwest, stands tall welcoming you to the Sonoran desert. Buffelgrass, an enemy to the saguaro, threatens that welcome. Buffelgrass, native to Africa, Asia and ...

Stinknet, an invasive plant species from South Africa with carrot-like leaves and yellow ball-like flowers, has been spotted growing in Saguaro National Park in southern Arizona, officials said. Alden ...

SAGUARO NATIONAL PARK — The U.S. Interior Department will infuse $10.3 million into efforts to restore Arizona lands and water this year, offering a particular boost to projects battling non-native ...

TUCSON, Ariz. (KVOA) — Buffelgrass has been an invasive plant that has been spreading over our desert for many years. Buffelgrass was initially brought into our area for cattle grazing. But now it has ...

TUCSON — In the Santa Catalina Mountains of the Coronado National Forest, buffelgrass has taken over, occupying thousands of acres of wildlands with what can quickly become fuel for wildfires. Land ...

Nonnative grasses were introduced to Hawaii by ranchers as cattle fodder in the 18th century. The invasive grasses present a serious threat to communities surrounded by the dry and highly ignitable ...