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Herbicide carryover in hay, manure, compost and grass clippings

Herbicides applied to pastures and some crops can persist in soil amendments like hay, manure, compost and grass clippings. Make sure your amendments are free of these herbicides before you contaminate your soil.

Mar 2010 | Article

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...

Richard Smiley | Jan 2018 | Article

The ABCs of NPK: A fertilizer guide

Nitrogen, phosphorus and potassium aren't just an alphabet soup of chemicals. They are essential plant nutrients that, when used correctly, help to grow a healthy garden. Learn what fertilizers to apply when in this handy guide.

Lisa Ehle | Jun 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 ...

A: View answer | View all featured questions

Hints for storing home grown spuds

How to harvest and store your potatoes to make them last longer.

Aug 6, 2007 | News Story

Tips on keeping harvested potatoes fresh

Keep harvested potatoes fresh

Aug 13, 2010 | News Story

How to Make a Rooting Tonic

Rooting tonics contain plant growth hormones used to stimulate root growth during plant propagation. They're easy to make at home.

Nov 2011 | 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...

Tim Miller | Mar 2015 | Article