Many of the invasive plant species introduced to the United States originated as garden plants. Learn what you need to know to prevent future invasions.
Linda R. McMahan, Joy Jones, Robert Emanuel |
Jul 2011 |
Extension Catalog publicationPeer reviewed (Orange level)
Photo courtesy of Oregon Department of Agriculture (Cropped from original)
The Japanese beetle is an invasive pest that has established itself in parts of the US. In 2016, a breeding population was found in Oregon, which triggered an eradication effort and a call to report sightings.
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
Excessive summer irrigation of oak and madrone trees may promote fungal diseases such as the oak root fungus (aka armillaria root disease) and crown rot.
Live on the coast? Check out these 6 new publications on the best ways to grow your favorite berries! We suggest you start with the overview, then move on to the crop specific guides.
Q: How to treat powdery mildew on squash and cucumber plants? Most of our squash plants have powdery mildew. Some of the leaves have died and crumbled. We had same problem last year. I regret not removing all the infected ...
Research is incorporated into the Harney County Cooperative Weed Management Area, which will restore 20,000 acres that have been invaded by medusahead in western Harney County.