The first Tree School Online session debuted with 300 registered participants. Since then, the live classes have rolled out with anywhere from 50 to 100 participants.
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.
This is the first module for EM 9172, the Fire Science Core Curriculum. This curriculum is designed to teach the basics of fire to non-fire-professional community members, including instructors and landowners, such ...
Dan Leavell, Carrie Berger, Stephen Fitzgerald, Robert (Bob) Parker |
Aug 2017 |
Extension Catalog publicationPeer reviewed (Orange level)
This publication represents a synthesis of what is known about the history, biology, ecology and management of western juniper. This species occupies 9 million acres in central and eastern Oregon, northeastern ...
Richard Miller, Jon Bates, Tony J. Svejcar, Fred B. Pierson, Lee Eddelman |
Jun 2005 |
Extension Catalog publicationPeer reviewed (Orange level)
This publication is a guide for protecting, conserving, selecting, maintaining, removing, and replacing trees on development sites in the Pacific Northwest.