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Showing 1 - 10 of 13 results.

New ‘droughty’ soils model for Pacific Northwest could aid forest health in changing climate

Scientists have developed a new approach to modeling potentially drought-prone soils in Pacific Northwest forests, which could aid natural resource managers to prepare forested landscapes for a changing climate.

Chris Branam | Aug 16, 2018 | News Story

Growing Tree Fruits Successfully

Soil, site, irrigation, selection, pruning/thinning, and integrated pest management.

Ross Penhallegon | Jul 2013 | Presentation

Apple Resources for Umatilla County

Umatilla County is the apple capital of Oregon and produces ~2200 acres of apples.

Jul 2018 | Collection

Noble fir seedling survival strategies

Applied research to increase survival of noble fir Christmas tree seedlings during drought years, North Willamette Research and Extension Center.

Judy Kowalski, Chal Landgren | Jan 2020 | Article

My Apple Trees need Help!

Q: I have 5 apple trees and last year the growth was stunted with only 3-4 inches/year and also infested with apple maggots. I don't like the fly traps as one time a small bird was caught, probably following the moth. Is ...

A: View answer | View all featured questions

Drought hits Douglas-fir trees hard

Diseases and pests take advantage of trees' weakened condition

Mary Stewart | May 29, 2015 | News Story

Why Does Your Tree Look Sick?

Most “sick tree” problems can be traced back to underlying stresses that have reduced the tree's vigor, making it more vulnerable to diseases or insect pests.

Jun 2018 | Article

Living with Droughty Pastures

At times we see many of our cool-season perennial and annual forages looking stressed and growing very slow as they struggle with heat and no rain. The hot, dry conditions we sometimes experience in western Oregon have many ...

Shelby Filley | Aug 2019 | Article

How the Rogue Valley became famous for pears

The Rogue Valley growers were pioneers in pear production, growing over 24 varieties and setting quality standards in packing pears. The Rogue Valley was the first and largest red pear growing region in the Pacific Northwest in...

Jul 2007 | Article

Stressed trees show dieback

Browning or dieback is usually caused by weather-related stress, sometimes in combination with pests and diseases.

Mar 2018 | Article