Weeds

Featured Resources

Weed, Poisonous Plant, and Pest Resources for Small Farms

These publications are shared to teach farmers and agriculturalists how to properly control weeds and poisonous plants and pests. Handbooks and management fact-sheets are provided as well as a list of common pasture weeds, poisonous plants, and other pests that affect pastures.

Collection

Weed Management in Conventional and Organic Snap Beans in Western Oregon

Discusses weed prevention and management in conventional and organic snap bean production.

By Ed Peachey | OSU Extension Catalog

Latest Resources

Tree School Clackamas teaches love for the land

Educational event draws hundreds from woodland community in Clackamas County and beyond.

By Glenn Ahrens, Rose Clarke, Michael Bondi, Kimberly Jacobsen Nelson | Article

Controlling crabgrass, Bermuda grass, and nutsedge in your lawn

Presentation on controlling crabgrass, Bermuda grass, and nutsedge in your lawn

By Don Horneck | Presentation

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Latest News

Roll up your sleeves: Invasive weeds need persistence to control

Feb 23, 2018

Invasive weeds enter backyards in multiple ways and once there can cause havoc.

By Kym Pokorny | News Story

A prickly problem: Russian thistle populations in northeastern Oregon resist glyphosate

Mar 14, 2017

Wheat farmers rely extensively on the herbicide to control the weed

By Chris Branam | News Story

Pull weeds as they pop or plants will suffer

Apr 15, 2016

Extension expert offers advice on how to control stubborn weeds

By Kym Pokorny | News Story

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Upcoming Events

White Salmon, WA

Ace Hardware Plant Clinic-White Salmon

Sat, Jun 1, 2019 9:00 am - 1:00 pm

Have a gardening problem that you would like advice on how to solve? A bug that you would like to know what it is and if it's a pest or a beneficial? Stop by the OSU Extension Service Plant Clinic...

Gold Beach, OR

Rogue River Cleanup

Sat, Jun 1, 2019 9:30 am - 12:00 pm

Rogue River Clean-up 9:30-noon, or so, at Buffington Park in Gold Beach. Longer, and you can join folks upriver at Quosatana for picnic. Two areas of invasive weed removal inc. ivy and blackberries....

Corvallis, OR

Pop-Up Plant Clinic - Home Grown Gardens

Sat, Jun 1, 2019 10:00 am - 2:00 pm

What's up with your garden, houseplants or landscaping?

Whether you need help with a plant problem or just inspiration for the garden of your dreams, OSU Extension Service Master Gardener Volunteers...

Meet Our Experts

Judit Barroso

Weed Science

Brooke Edmunds

Community Horticulture/Master Gardeners

Jessica Green

Senior Research Assistant

Andy Hulting

Weed Control

Have a Question? Ask an Expert!

Ask an Expert is a way for you to get answers from the Oregon State University Extension Service. We have experts in family and health, community development, food and agriculture, coastal issues, forestry, programs for young people, and gardening.

Ask Us a Question

What should I be doing now for weed control?

The straw mulch I used at the end of summer to suppress the weeds doesn't seem to be working. Should I till it and cover with plastic? black or clear? Is there something better. Or should I add more straw. I could probably bring some cardboard home from work. Is this a healthy option?

By Ann Kinkley | Featured Question

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