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.
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.
This publication is a guide for protecting, conserving, selecting, maintaining, removing, and replacing trees on development sites in the Pacific Northwest.
Discusses the advantages of drip irrigation and how it can help growers use water efficiently. Covers basic concepts related to components and design as well as management considerations such as placement of the ...
Discusses options for managing major insect pests and diseases of conifers in Oregon forests: bark beetles, wood borers, and ambrosia beetles; defoliators; aphids, adelgids, and scale insects; terminal and branch ...
Paul T. Oester, David C. Shaw, Gregory M. Filip |
Jan 2023 |
Extension Catalog publicationPeer reviewed (Orange level)
When leasing land for growing crops or grazing livestock, there's more to consider than just the cost. Lease agreements can be as simple as a handshake, but it's best to get legal advice and have conditions in writing.