Invasive annual grasses are a threat to the Great Basin desert ecosystem. They compromise habitat diversity for important wildlife species such as the greater sage-grouse. They shorten the grazing season for ...
Fara Brummer, Peter Schreder, Grace Haskins, Jason Jaeger |
Feb 2018 |
Extension Catalog publicationPeer reviewed (Orange level)
Covers the history of yellow starthistle (Centaurea solstitialis L.) invasion of the Pacific Northwest and describes current infestation levels in Oregon and Washington. Provides basic information regarding yellow ...
Larry L. Larson, Roger Sheley, Michael McInnis, Gary Kiemnec |
Jan 2008 |
Extension Catalog publicationPeer reviewed (Orange level)
Russian olive trees are fast-growing plants that since the 1950s have become invasive throughout many areas of the Inland Pacific Northwest, particularly in riparian ecosystems. They form impenetrable masses, create ...
Pacific Northwest blueberry growers must identify and control a number of bacterial and fungal diseases in order to ensure the highest yields. Fortunately, only a few of the diseases that occur on highbush blueberry in this region cause significant losses when left unchecked.
Jay W. Pscheidt, Jerry Weiland |
Mar 2015 |
Article
Discusses how to identify and control Pacific poison-oak and western poison-ivy, and how to prevent exposure to the plants' oily substance, urushiol, which can cause an allergic contact dermatitis.
Brooke Edmunds, Lauren Grand, Alicia Christiansen, Andy Hulting |
Nov 2022 |
Extension Catalog publicationPeer reviewed (Orange level)
Photo by Kalista Schuster. Used with permission. (Cropped from original)
Late winter and early spring can be a perilous time for livestock. It's a time when even a full stomach won't stave off starvation. That's why livestock managers must pay close attention to the health of their animals.
Susan Kerr |
Dec 2009 |
Article
Photo: Oregon State University (Cropped from original)
Poison oak plants contain a chemical that causes a severe rash. Learn how to spot a plant, safely remove, and clean your clothes, gear and skin afterward to prevent a rash.
Invasive plants disrupt ecosystems and have no place in streamside gardens. But these plants can be tempting because of their showy flowers and cheap prices.
Q: Several brown, dead rings have formed in my lawn this summer. They seem to coincide with a type of mushroom. Are the mushrooms causing this? Is there any treatment short of applying a fungicide that is effective? Will the lawn recover on its own?