Many landowners don't know that they need a legal water right to use surface water and groundwater for irrigation. Oregon’s water resources are publicly owned, and in great demand. Even though the water runs through your ...
While relatively healthy, forests in western Oregon face threats from climate stress, insects and disease. Here's a look at forest management strategies to cope with those threats and keep the state's forests healthy.
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.
Some plants absorb excess nitrates or oxalates from the soil and store them in plant tissues. Toxicity problems can occur in animals which feed on these plants.
Mylen Bohle, David Hannaway, Andy Hulting, Karin Neff |
Apr 2018 |
Educational gallery
Q: I have what I believe is a Kirk Walnut in my yard. It has a large hollow that is gathering water. I'm worried that this watery situation will rot the heart of the tree. I'd love to preserve this historic beauty. It ...
Are you worried about a tree on your property? Oregon State University Extension Service Foresters help you learn about individual tree needs, how to detect and describe symptoms of poor tree health, and to decide whether you need to take further action.