Weeds in Wallowa County
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| Beautiful landscape or noxious weed invasion? The truth is, it's both. Whitetop, a noxious weed, is invading the Imnaha River Canyon and can be seen in the light green patches on the darker green hillside of this photograph. |
Welcome to the Weeds in Wallowa County page. Here you will find information about noxious weeds in Wallowa County, including:
• Outlining the problem of noxious weeds
• Identification and treatment of noxious weeds
• Answers to common weed questions
• Integrated Weed Management Plan
• Links to other noxious weed sites
What are noxious weeds?
Noxious weeds are non-native aggressive plants brought to the U.S. accidentally or on purpose, mainly from Europe and Asia. Noxious weeds are invading vast areas of land across the western United States, including land in Wallowa County.
Why are noxious weeds a problem?
Noxious weeds cause a variety of problems by degrading our landscape. Noxious weeds:
• Invade croplands, pastures, range and other areas
• Increase soil erosion
• Rob native plants of water, nutrition and light
• Reduce habitat for wildlife
• Decrease available livestock forage
• Degrade recreation areas
• Are potentially toxic to humans and other animals
• Cost Oregon citizens about $100 million per year (O.D.A)!
Why are noxious weeds so difficult to control?
• Many weeds have extensive root systems, which can sprout even after tops have been destroyed.
• The seeds of some weeds can remain viable for many years.
• Noxious weeds have no natural predators here (unless we introduce them)!
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A typical noxious weed, leafy spurge infests nearly 3 million acres in North America. This aggressive plant has an extensive root system and out-competes desirable vegetation. |
More Answers to Commonly Asked Questions:
How do I get rid of this weed?
How much chemical do I use?
How do I report noxious weeds?
More questions? Need help? Contact your local weed managers!
You can help, too!
Listed below are some of the most dangerous weeds taking over our landscape. Keep an eye out for these invaders and report them! Learn to identify and control weeds on your property by clicking on a weed to download the Weed Watch flier (PDF format). Each flier contains photos, identification and treatment information.
Dalmatian Toadflax
Common Bugloss
Japanese Knotweed
Leafy Spurge
Meadow and Russian Knapweed
Meadow Hawkweed
Medusahead Rye
Rush Skeletonweed
Spotted Knapweed
Sulfur Cinquefoil
Whitetop
Yellow Starthistle