Umatilla National Forest to begin Invasive Plant Treatments

PENDLETON, Ore. – The Umatilla National Forest will begin invasive plant treatments in late April using an integrated approach of prevention, manual, mechanical, herbicide, biological control and cultural treatments to reduce the risk of invasive species expanding on the forest. Treatments are expected to continue through October.

Invasive species have been shown to reduce biodiversity including wildlife habitat, wildlife and domestic livestock forage and streamside vegetation. Invasive plants targeted for treatment include common crupina, yellow starthistle, leafy spurge, spotted and diffuse...