Search OSU Extension

Showing 1 - 10 of 11 results.

Are there insect issues with birch trees?

Q: Is it true that white paper birch in the Willamette Valley have been infested with insect like beetle? I wanted to plant one this spring and my yard maintenance service told me I should consider a different type due to the insect problem.

A: View answer | View all featured questions

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

Pot up some bulbs and dream of spring

Spring-blooming bulbs do great in containers

Heather Stoven | Oct 14, 2017 | News Story

April garden calendar

Garden planning, maintenance and pest management tips for the month of April.

May 2018 | Article

Planting Bare-Root Roses in March

If you have ever purchased a bare-root rose, your first question might have been, will this awkward plant really produce roses? Yes it will!

Barbara McMullen | May 2007 | Article

Growing vegetables in the Pacific Northwest coastal region

Asparagus, beets, carrots and summer squash are some of the vegetables you can grow along the coast. Learn what to watch out for in a region known for cooler temperatures.

Sally Reill | Jul 2017 | Article

How to collect a plant specimen for disease diagnosis

A guide for how to collect and where to get a sample analyzed for plant diseases.

Melodie Putnam, Carol Savonen | Jul 2014 | Article

Why are my trees dying?

Trees all over Oregon are displaying signs of poor health. People are quick to blame insects, but insects are rarely the underlying cause of the problem. Drought and other stressors can make trees vulnerable to pests and disease.

John Punches | Sep 2019 | Article

May Garden Calendar

Information about garden planning, maintenance and clean up, pest monitoring and management, houseplants, and indoor gardening for the month of May.

May 2018 | Article

Grapevine Trunk Diseases in Oregon

A summary of the main trunk diseases causing issues in Oregon and management methods.

Melodie Putnam | Mar 2019 | Article