POLK SOIL AND WATER CONSERVATION DISTRICT
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        • Emerald Ash Borer
        • Conifer Focused Forestry
        • Oak Woodland Management
      • Invasive Species >
        • IMap Invasives
        • A-List Priority Weeds
        • The "B" Rated Weeds
        • Aquatic Animal Invaders
        • Reed Canary Grass info
        • Medusahead
        • Biological controls for noxious weeds in Oregon
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        • Save Salmon : No Spray Buffers
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Invasive species

comprehensive guides for pest management

See All Pacific Northwest Pest Management Handbooks
Insect Management Handbook
Plant Disease Management Handbook
Weed Management Handbook
Pesticide Advisory: Increased dangers of pesticide use during hot, dry weather

Oregon Invasives Hotline

​In their efforts to detect new outbreaks, invasive species experts in Oregon face the daunting challenge of tracking hundreds of potential new invaders across millions of acres of farms, forests, and waterways. They can't do it alone. They need the help of all Oregonians to be their eyes in the field.
The Oregon Invasive Species Online Hotline is designed to help you become involved in this effort. By using the Online Hotline to report suspected invasive species in your area, you'll be contributing vital early detection information to the experts best able to stop the spread of invasives. The Online Hotline also lets you connect directly with an expert to get positive identifications and answers to your questions. Please note that the information you provide in your report may become viewable by the public. Private comments can be added after you submit your report.
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​The "A" and "t" Listed Weeds

A Listed weeds are weeds of known economic importance which occur in the state in small enough infestations to make eradication or containment possible; or is not known to occur, but its presence in neighboring states make future occurrence in Oregon seem imminent. ​ Infestations are subject to eradication or intensive control when and where found. A and T listed weeds are a designated group of weed species that are selected and will be the focus for prevention and control by the ODA Noxious Weed Control Program. ​
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​The "B" and "T" Listed Weeds

B listed weeds are weeds of economic importance which are regionally abundant, but which may have limited distribution in some counties. Limited to intensive control at the state, county or regional level as determined on a site specific, case-by-case basis. T listed weeds are a designated group of weed species that are selected and will be the focus for prevention and control by the ODA Noxious Weed Control Program. 
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Biological Controls for noxious weeds in oregon

A wide variety of biological control options exist for noxious and invasive weed control and management in the State of Oregon. Click below to explore these options, and contact us to discuss management and control further.
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Aquatic Animal Invaders

Zebra mussels, Red Ear Sliders, and the American Bull Frog are just a few of the species that represent significant economic and ecologic threats, to waterways in the State of Oregon. Click below to explore the major aquatic invasive species of concern, and contact the district and Oregon Department of Fish and Wildlife if you believe you have found one of these species.
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Reed Canary Grass Info

Widespread and familiar, Reed Canary Grass is a rampant invader of wetland and riparian areas throughout the State and the Country. click below to find several useful resources for controlling and managing this species.
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MANAGING
HIMALAYAN BLACKBERRY
​

Widespread and familiar, Reed Canary Grass is a rampant invader of wetland and riparian areas throughout the State and the Country. click below to find several useful resources for controlling and managing this species.
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Medusahead

​A plant with widespread ecologic and economic damage, more commonly associated with the eastern portion of the state, Medusahead has been found in Polk County. Click below to find several resources for controlling and managing this species.
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Need Assistance? We are always here to help!

Get in Touch
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POLK SOIL & WATER
CONSERVATION  DISTRICT

YOUR LOCAL SOURCE OF CONSERVATION INFORMATION AND ​EDUCATION IN POLK COUNTY, OREGON SINCE 1966

Contact us

580 MAIN STREET,  SUITE A,
DALLAS OR, 97338
​
PHONE: 503-623-9680
OFFICE HOURS: MON.-FRI., 8:00am - 4:30pm
Staff Email & Extensions

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The Polk Soil & Water Conservation District complies with the American with Disabilities Act (ADA) and prohibits discrimination in all its programs, services, activities, and materials on the basis of race, color, national origin, religion, sex, gender identity (including gender expression), sexual orientation, disability, age, marital status, familial/parental status, income derived from a public assistance program, political beliefs, genetic information, veteran’s status, reprisal or retaliation for prior civil rights activity. 
  • Home
  • Our District
    • Staff
    • Board of Directors
    • Minutes and Agendas
    • Committees
    • Operational Documents
    • Employment Opportunities
    • History
  • Technical Assistance
  • PROGRAMS & FUNDING
    • Conservation Reserve Enhancement Program (CREP)
    • OAK WOODLAND & SAVANNAH RESTORATION (RCPP) >
      • RCPP Grant
      • Oak Woodland Management
      • Traditional Ecological Knowledge
      • Native Seeds
      • Native Plants
    • Oregon Watershed Enhancement Board (OWEB) Grant Programs
    • Conservation Easements
    • Successful Projects
    • Disaster Assistance
  • Get Involved
    • District and Community Events
    • Local Work Group Meeting
    • Volunteer - Native Plant Sale
    • Volunteer - Friends of Trees
    • Attend Board Meetings
    • Community Science
    • Join the Board
    • Make a Donation
  • Stay Informed
    • Resources >
      • Agriculture >
        • Oregon’s Agricultural Water Quality Program
        • Small Farms >
          • SOIL CONSERVATION
          • Livestock
          • Organic Operations
      • Forestry >
        • Emerald Ash Borer
        • Conifer Focused Forestry
        • Oak Woodland Management
      • Invasive Species >
        • IMap Invasives
        • A-List Priority Weeds
        • The "B" Rated Weeds
        • Aquatic Animal Invaders
        • Reed Canary Grass info
        • Medusahead
        • Biological controls for noxious weeds in Oregon
      • Wildlife >
        • Save Salmon : No Spray Buffers
      • Water Conservation
      • Native Plants
      • Traditional Ecological Knowledge
      • Rural Living Handbook
      • Resources for Youth
    • Cultivating Publication >
      • Cultivating Archive
    • Conservation Spotlight Podcast
    • Subscribe to Our Newsletter
    • News & Announcements
    • Virtual Events Library
    • Our Partners
  • Native Plant Sale