Invasive or exotic species are
an increasing threat to nursery production due to the increased movement
of plants and people across borders and continents. The following websites
present useful information concerning this topic. For more specific invasive
pest information, click
This site includes the 100 most dangerous invaders list
for Oregon. Additionally the Invasive
Species in Oregon Report Card for 2014 is useful reading.
Department of Agriculture Insect Pest Prevention and Management Section
Noxious Weed Control Program
Included with lots of other useful information is the Noxious
Weed List for Oregon. This site as well contains noxious
Oregon Forest Pest Detectors
Pacific Northwest's Least Wanted: Invasive
Weed Identification and Management. Oregon State University Extension.
State Invasive Species Council General questions
and reporting information: Please e-mail us at firstname.lastname@example.org
or call 1-877-9-INFEST
Department of Agriculture Pest Program Contacts
Washington Department of Agriculture Exotic
Washington State Noxious Weed Control
Noxious Weed List
This site contains definitions of Class A, B, & C weeds; the Washington's monitor
list for weeds; a list
of weed seeds/plants whose sales are prohibited; both terrestrial
and aquatic weed information. In development is a webpage
where one can identify
weeds based on their flower color or habitat.
Invasive Species Council
University of Idaho's Center
for Research on Invasive Species and Small Populations (CRISSP)
Noxious Weed Program
Crammed with information, this site has many links to information
of noxious weeds, regulations, and weed program.
Noxious Weed's list terrestrial plants aquatic plants
Montana Invasive Species Council
This site includes the CalEPPC Invasive
Plant Inventory. Amongst the treasures at this site: Invasive
Plants of California Wildlands. See their CalWeedMapper website.
California Dept. of Food and Agriculture (CDFA) Plant
Health and Pest Prevention Services (PHPPS) has developed a website on
noxious weeds with lots of information and aptly titled Encycloweedia.
USDA Animal and Plant
Health Inspection Service (APHIS)
USDA Hungry Pests
Noxious Weed List
State noxious weed lists
National Invasive Species Resource Center
Hungry Pests. USDA APHIS.
This is the gateway to the National
Invasive Species Council. Included at this site are many papers
on the economic impact of invasive species.
BLM's Alien Plant Working Group's
Weeds Gone Wild
's Invasive and Noxious Weeds:
Plant Board website. Here can be found the regulated
pest information by state.
Aquatic Species Website
for Aquatic and Invasive Plants
The Exotic Forest Pests Information System for North America
Exotic Species of North America
The most photo rich site on invasive species.
National Agricultural Pest Information
BugGuide:List of non-native arthropods
The Center for Plant Conservation
St. Louis Declaration on Invasive Plant Species.
Guide to Noxious and Other Selected Weeds of British Colombia
of Agriculture, Food, and Fisheries Invasive Pests and Biosecurity
Global Invasive Species
North American Plant Protection
There are many excellent options at this site including a Pest
Alert System, where one can learn about official and unoffical of pests in the U.S., Canada, and Mexico: the ability to search
Pest Alerts by type.
Original version: <13 March 2012)
Last revision <27 August 2019>
Author: R.L. Rosetta, Extension Nursery Integrated Pest Management, Department of Horticulture, Oregon State University