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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

What's a pet-safe way to kill moss in my lawn?

Q: My lawn has been taken over by moss this winter, and I am wondering if there is a pet-safe moss killer on the market that won't kill my grass also? I have read your materials on moss control, and I plan to utilize ...

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What’s That Moss Doing In My Pasture?

It's that time of year when we notice, in some cases, more moss than grass growing in our pastures. What went wrong? How can the problem be fixed? Most folks want to know what they can do to get rid of the moss, ...

Melissa Fery | Mar 2007 | 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 ...

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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

How to Remove Poison Oak Plants and Treat a Rash

Poison oak plants contain a chemical that causes a severe rash. Learn how to spot a plant, safely remove, and clean your clothes, gear and skin afterward to prevent a rash.

Jun 2010 | Article