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Turfgrasses and Lawn Care in Eastern Oregon

Today, turfgrass is the single largest irrigated crop in the United States and covers three times the land area of any other cultivated crop. An estimated 40.5 million acres of grasses are planted in residential, commercial and institutional lawns, golf courses, and athletic fields. Learn more about the structure and establishment of turfgrass and how to address weeds, diseases, and insects.

Richard Smiley | Jan 2018 | Article

Will glyphosate poison us or our pets?

Q: We live in a large condominium between NW Naito Parkway and the Willamette River. Our property extends to the banks of the river. Our landscaper has been using a diluted version of glyphosate to control weeds on the property and blackberry vines along the edge of the river. We have LOTS of dogs in our complex, and some of our residents like using the rosemary growing...

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

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

Weed management for blueberry fields in the Pacific Northwest

Weeds are always a difficult problem in blueberry production! They start to show up shortly after transplanting, and tend to become more problematic as time goes on. There are, however, strategies that help to control weeds in blueberry. This article will discuss some thoughts about weed control in blueberry, and some of the strengths, and weaknesses, of currently registered herbicides.

Tim Miller | Mar 2015 | 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