Describes abiotic injuries caused by weather, soil, and human behavior. Provides basic information on how to understand abiotic injures, presents common examples of abiotic injury, and discusses management control practices.
Four Extension faculty and one research assistant gave presentations at the Farwest Show, which annually draws an estimated 5,000 attendees to the Oregon Convention Center and nursery tours.
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.
How to identify, manage, and prevent forest tree stem (trunk) decay. Also discusses ecologic roles of decay and decay fungi and economic losses from tree wounding and decay. Color photos throughout. Preview available online. Full version available to purchase.
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
Presentation by Silvia Rondon on Insect Ecology. Topics covered include types of metamorphosis, effects of temperature on development, how temperature affects SWD and potato tuberworm.