Cooperative Weed Management Areas (CWMA)     TOP

• National Cooperative Weed Management Area Map A clickable map which shows communities of landowners joined with local, state, and federal partners to prevent and manage invasive plants and support healthy ecosystems by organizing cooperative weed management areas (CWMAs) across the United States.

Comprehensive sites     TOP

• Invasive Species.gov: The Nation's Invasive Species Information System Invasivespecies.gov is the gateway to Federal efforts concerning invasive species. On this site you can learn about the impacts of invasive species and the Federal government's response, as well as read select species profiles and find links to agencies and organizations dealing with invasive species issues. Invasivespecies.gov is also the Web site for the National Invasive Species Council, which coordinates Federal responses to the problem.
• Plant Protection and Quarantine is a program within the Animal and Plant Health Inspection Service (APHIS), and safeguards agriculture and natural resources from the risks associated with the entry, establishment, or spread of animal and plant pests and noxious weeds to ensure an abundant, high-quality, and varied food supply.
• Plant Conservation Alliance - Alien Plant Working Group Weeds Gone Wild: Alien Plant Invaders of Natural Areas is a web-based project of the Plant Conservation Alliance's Alien Plant Working Group, that provides information for the general public, land managers, researchers, and others on the serious threat and impacts of invasive alien (exotic, non-native) plants to the native flora, fauna, and natural ecosystems of the United States. This site provides a compiled national list of invasive plants infesting natural areas throughout the U.S., background information on the problem of invasive species, illustrated fact sheets that include plant descriptions, native range, distribution and habitat in the U.S., management options, suggested alternative native plants, and other information, and selected links to relevant people and organizations.
• ISSG's Global Invasive Species Database The Global Invasive Species Database (GISD) aims to increase awareness about invasive alien species and to facilitate effective prevention and management activities. It is managed by the Invasive Species Specialist Group (ISSG) of the Species Survival Commission of IUCN (the International Union for Conservation of Nature). The GISD was developed as part of the global initiative on invasive species led by the Global Invasive Species Programme and is supported through partnerships with the National Biological Information Infrastructure, Manaaki Whenua-Landcare Research, the Critical Ecosystem Partnership Fund, the University of Auckland and private donations.
• USDA Invasive Species Databases Links to comprehensive online databases of invasive species.
• The Nature Conservancy: Taking on the Invaders The Nature Conservancy is working to prevent and control the spread of invasive species in all 50 states and across more than 30 countries around the world. Together with our partners we are focusing on prevention and early detection as the most effective strategies to combat invasive species.
  

General information     TOP

• Institute for Biological Invasions An institute at the University of Tennessee run by Dr. Daniel Simberloff. It includes a comprehensive bibliography of literature on invasions and fact sheets on many invasive species.
• IUCN/SSC Invasive Species Specialist Group (ISSG) The Invasive Species Specialist Group (ISSG) is part of the Species Survival Commission (SSC) of The World Conservation Union (IUCN). The ISSG is a global group of 146 scientific and policy experts on invasive species from 41 countries.
• Impacts of Introduced Species in the United States Review article discussing the impact and control of invasive species in the U.S., from the U.S. Global Change Research Information Office.
• Harmful Non-Indigenous Species in the United States 9325 Congressional publication outlining the history of economic and environmental loss caused by exotic species. In depth coverage of control and policy practices on a federal, state, and local level.
• Invasive and Exotic Species of North America News, pictures, and factsheets on invasive species from the Center for Invasive Species and Ecosystem Health. Covers all taxonomic groups.
• The Global Invasive Species Programme (GISP) A collaborative program that produces numerous downloadable publications about management, impact, etc. Also, there are numerous links, factsheets, and maps describing various invasive species on a global scale.
• Exotic Introductions A hypertext book by Peter J. Bryant with introductory information on numerous invasive species and a few case studies on control.
• U.S. Geological Survey: Nonindigenous Species Includes information on organisms accidentally or intentionally introduced into areas where they did not previously originate or live.
• Union of Concerned Scientists: Invasive Species Concise information covering recent events, scientific research, government policy, and a simple guide to actions anyone can take to help manage invasive species.
• Environmental Law Institute - State Appendix – Halting the Invasion: State Tools for Invasive Species Management--A full report on the status and policy of invasive control in every state with sections on plants, wildlife, insect, aquatic life, plant pests and diseases, and invasive species councils and plans.
  

Federal programs     TOP

• Animal and Plant Health Inspection Service (APHIS) A multi-faceted agency with a broad mission area that includes protecting and promoting U.S. agricultural health, regulating genetically engineered organisms, administering the Animal Welfare Act and carrying out wildlife damage management activities.
• National Invasive Species Information Center (NISIC) Gateway to invasive species information; covering Federal, State, local, and international sources. The National Invasive Species Information Center (NISIC) was established in 2005 at the National Agricultural Library to meet the information needs of users including the National Invasive Species Council (Council). NISIC creates and manages the www.invasivespeciesinfo.gov Web site. The Web site serves as a reference gateway to information, organizations, and services about invasive species.
• InvasiveSpecies.gov: The gateway to Federal efforts concerning invasive species. On this site you can learn about the impacts of invasive species and the Federal government's response, as well as read select species profiles and find links to agencies and organizations dealing with invasive species issues. Invasivespecies.gov is also the Web site for the National Invasive Species Council, which coordinates Federal responses to the problem.
• U.S. Fish and Wildlife Service: Invasive Species Program The U.S. Fish and Wildlife Service is the only agency of the U.S. Government whose primary responsibility is the conservation of the nation’s fish, wildlife, and plants. Because of our responsibilities, the Service is very concerned about the impacts that invasive species are having across the Nation.
• Federal Interagency Committee for the Management of Noxious and Exotic Weeds Information on policy guidelines and management recommendations that is being coordinated between 16 federal agencies.
• Harmful Non-Native Species: Issues for Congress CRS Report: RL30123 - Congressional report on the history, impact, and control of non-native species.
• APHIS Noxious Weeds Program Designed to prevent the introduction into the United States of nonindigenous invasive plants and to prevent the spread of newly introduced invasive plants within the United States.
• USDA PLANTS Database Invasive and Noxious Weeds View Federal and state noxious weed lists, an invasive plant list, or an introduced plant list, each with links to more information.
• The National Park Service invasive species site This site highlights invasive species management of the NPS including the work of the 16 specialized Exotic Plant Management Teams deployed in parks in the U.S.
• U.S. Bureau of Land Management Invasive and Noxious Weeds The BLM works with State, Federal and local parters to reduce the spread of invasive species, with an emphasis on early detection of and rapid response to new invasions in order to reduce the need for larger, more expensive treatments later on.  
• The status of invasiveness of forest tree species outside their natural habitat A global review and discussion paper. This discussion paper from the Forestry Department - Food and Agriculture Organization of the United Nations, presents a global review of the status of the invasiveness of forest tree species outside their natural habitat. The review covers trees and woody shrubs commonly used in commercial forestry and agroforestry. Information for the review has been collated from published databases and papers, unpublished reports and personal communications.
• U.S. Geological Survey: Alien Plants Ranking System The Alien Plants Ranking System (APRS) is a computer-implemented system to help land managers make difficult decisions concerning invasive nonnative plants. The management of invasive plants is difficult, expensive, and requires a long-term commitment. Therefore, land managers must focus their limited resources, targeting the species that cause major impacts or threats to resources within their management, or the species that impede attainment of management goals. APRS provides an analytical tool to separate the innocuous species from the invasive ones (typically around 10% of the nonnative species). APRS not only helps identify those species that currently impact a site, but also those that have a high potential do so in the future. Finally, the system addresses the feasibility of control of each species, enabling the manager to weigh the costs of control against the level of impact.

Regional information     TOP

• Center for Aquatic and Invasive Plants, University of Florida Education materials available for teaching about Florida’s aquatic and invasive plants. Hundreds of pictures are available in a searchable database, along with brief natural history or distributional data.
• The Ecology and Management of Invasive Plants Program or Cornell University Conducts research to assess the ecological impacts of introduced plant species.
• Southwest Exotic Plant Information Clearinghouse The Southwest Exotic Plant Information Clearinghouse is a cooperative effort among the U.S. Geological Survey, the National Park Service and Northern Arizona University to organize comprehensive information on exotic plant species in the southwest on one web location. SWEPIC serves to help all people and organizations committed to protecting the ecological and economic values of southwest resources from degradation from harmful non-native weeds. The goal of SWEPIC is to provide reliable and organized information on the distribution and ecology of these weeds in the southwest, with an emphasis on forests, rangelands, and other natural areas. Please contact us if you have information or comments that should be included in SWEPIC.
• Southeast Exotic Pest Plant Council A Non-Profit Organization established to raise public awareness about the spread of exotic plants into the southeast’s natural areas; facilitate the exchange of information concerning management and control of invasive exotic plants; provide a forum for all interested parties to participate in meetings, workshops, and an annual symposium, and to share the benefits from the information provided by SE-EPPC; serve as an educational, advisory, and technical support council on all aspects of exotics; and initiate campaign actions to prevent future introductions.
• NAPPO Phytosanitary Alert System Pest news and alerts provided in both English and Spanish.
• Spread, Impact and Control of Purple Loosestrife USGS review of the identification, natural history, history, ecological and economic impact, and management of purple loosestrife.
• Species Abstracts of Highly Disruptive Exotic Plants USGS species abstracts of pest plants in parks within Nebraska, Minnesota, Iowa, and the Dakotas.
• Control of Invasive Exotic Plants in the Great Plains This annotated bibliography from the USGS contains references on control of exotic plant species that occur in the Great Plains. You may search on either the species of interest or on the type of control measure. Complete citations are provided, as well as summaries describing the control technique and whether it was successful. These summaries are not meant to give detailed instructions; readers are encouraged to obtain the original article and talk with the investigators before attempting the control measure.”
• Invasive and Exotic Species of North America Any species, including its seeds, eggs, spores, or other biological material capable of propagating that species, that is not native to that ecosystem; and whose introduction does or is likely to cause economic or environmental harm or harm to human health
• Exotic Species (SERAMBO) Lists to assist those seeking information on the most invasive plant species of southern Appalachia.
• INVADERS Database System - University of Montana-Missoula: The INVADERS Database is a comprehensive database of exotic plant names and weed distribution records for five states in the northwestern United States. The spatial and temporal spread of weeds can be displayed using the historic distribution records in INVADERS. The INVADERS web site contains actual examples of how land management and weed regulatory agencies are using these data to improve their weed management programs. Noxious weed listings are provided for all U.S. states and six southern tier Canadian provinces.
• Invasive Plant Atlas of New England The Invasive Plant Atlas of New England’s (IPANE) mission is to create a comprehensive web-accessible database of invasive and potentially invasive plants in New England that will be continually updated by a network of professionals and trained volunteers. The database will facilitate education and research that will lead to a greater understanding of invasive plant ecology and support informed conservation management. An important focus of the project is the early detection of, and rapid response to, new invasions.
• Exotic Invasive Plants of the Northeast Connecticut College's site lists exotic plants, particularly in Connecticut, and provides information on the environmental impact of the American lawn.
• Global Compendium of Weeds From the Hawaiian Ecosystems at Risk project (HEAR) is a list of plant species that have been sited in specific references as weeds.
• USDA-ARS TEAM Leafy Spurge TEAM Leafy Spurge, a United States Department of Agriculture (USDA), Agricultural Research Service (ARS) research and demonstration program, focuses on the Little Missouri River and associated watersheds in Wyoming, Montana, North Dakota and South Dakota. Its goal has been to research, develop and demonstrate ecologically based, integrated pest management (IPM) strategies for landowners and land managers to achieve effective, affordable leafy spurge control.
• National Jointed Goatgrass Research Program This site is an expansion of work completed under the National Jointed Goatgrass Research Program which was funded by series of CSREES-USDA special grants from 1994 - 2009. For information and directed links on problem grass weeds, select from the grass species of interest to you.
• New England Pest management Fact Sheet Finder Intro The Fact Sheet Finder provides a simple, quick way to search by keyword through a list of over 1,100 pest fact sheets posted on New England university and state agency Web sites.
• NASA/USGS Tamarisk This project is a cooperative between USGS and NASA, headed by the USGS. The project is devoted to creating a National mapping and forecasting system for invasive weeds. This site focuses on invasive tamarisk.
• Weeds Gone Wild This site highlights the work being done by the Plant Conservation Alliance’s Alien Plant Working Group and includes an extensive listing of invasive weed factsheets.
• Center For Invasive Plant Management (CIPM) A Montana-based regional organization that provides grants for research and on-the-ground land management throughout the US.
• Midwest Invasive Plant Network The goal of the Midwest Invasive Plant Network is to: ‘Address the problem of invasive plants and their threat to the Midwest's economy, environment, and human health by providing leadership, facilitating information development and exchange, and coordinating regional efforts.’
  

International Web sites     TOP

• European and Mediterranean Plant Protection Organization EPPO is an intergovernmental organization responsible for European cooperation in plant health. Founded in 1951 by 15 European countries, EPPO now has 47 members, covering almost all countries of the European and Mediterranean region. Its objectives are to protect plants, to develop international strategies against the introduction and spread of dangerous pests and to promote safe and effective control methods.
• Global Invasive Species Database The Global Invasive Species Database aims to increase awareness about invasive alien species and to facilitate effective prevention and management activities. It is managed by the Invasive Species Specialist Group (ISSG) of the Species Survival Commission of IUCN (the International Union for Conservation of Nature).
• New Zealand Department of Conservation New Zealand Department of Conservation's Threats & Impacts page provides species data, regulations, and information on citizen-based management practices. 
• Invasive Plant Council of BC Learn about some of British Columbia's most unwanted invaders and how to prevent their introduction, establishment, and spread.
• The Weeds Society of Western Australia The Society is an organisation that brings together research scientists, extension officers, consultants, company representatives, conservationists, other practitioners and members of the public who have an interest in weed management.
• The Global Invasive Species Programme (GISP)
• Alien species in Poland
• New Zealand Bay of Plenty Weed Index A tool designed to help you identify and eradicate weeds that can cause harm to our environment.
• Australian Government's Invasive weeds page From the Department of Sustainability, Environment, Water, Population and Communities.
• South African Invasive Species Network (SAFRINET) For networking between people and institutions; EcoPort is an Internet based information management forum, providing inter alia databases, slide shows, electronic publication and reporting, and a unique Internet tool kit.
• Canadian Food Inspection Agency's Invasive Plants page In Canada, organizations responding to invasive plants include federal, territorial, provincial and municipal governments, non-government organizations and other related businesses.
• A Global Compendium of Weeds A list of plant species (over 28,000 names) that have been cited in specific references (approximately 1,000) as weeds.
  

Plants and communities at risk     TOP

• Plant Protection and Quarantine program - USDA Plant Protection and Quarantine (PPQ) is a program within the Animal and Plant Health Inspection Service (APHIS). PPQ safeguards agriculture and natural resources from the risks associated with the entry, establishment, or spread of animal and plant pests and noxious weeds to ensure an abundant, high-quality, and varied food supply.
• Maryland Native Plant Society: About Invasives Information on invasive plants in Maryland.
• Plant Conservation Alliance Web site
• Effect of Exotic Plants on Bird Nesting Success Invasive species have been implicated as a major or contributing cause of declines for nearly half the endangered and threatened native species in the U.S. In Illinois, the number of exotic or invasive plants is unknown, but several (garlic mustard, kudzu, autumn olive) seriously threaten Illinois habitats.
• Missouri Botanical Garden: Invasive Plants Species Workshop - Dec. 2001
• Biological Inventories of the World's Protected Areas U.C. Davis
• NatureServe Data on Invasive Species
  

Control and prevention      TOP

• The Invasive Alien Species Handbook This publication of the Maryland Native Plant Society is a summary for the identification and removal of many common invasive alien species. It has full-color pictures of these plants.
• Control of Invasive Non-Native Plants From the Maryland Native Plant Society, this is a guide for gardeners and homeowners in the mid-Atlantic region.
• Aquatic Plant Control Programs U.S. Army Corps of Engineers alien species factsheets along with technical information on chemical, biological, and mechanical control.
• Environmental Law Institute -- State Appendix – Halting the Invasion: State Tools for Invasive Species Management.
• Garden Club of America: Partners for Plants Information about Partners for Plants, especially about past projects and contacts to initiate new projects.
• Ergonica Weed Watchers Links to Weed Watcher volunteer groups throughout the country. Additional links on this site offer thorough information on weeds and environmentally friendly gardening tips.
• The Global Invasive Species Team Part of The Nature Conservancy's response to abating the damage caused to native biodiversity by the human-facilitated introduction of non-native, harmful invasive species. This web site provides many resources designed to help all conservationists deal most effectively with invasive species.
• Invasive Species Manager’s Toolkit USDA Information for concerned individuals, organizations, researchers, and businesses about strategies and resources for managing invasive plants.
• National Fish and Wildlife Foundation Pulling Together Initiative The Pulling Together Initiative seeks proposals that will help control invasive plant species, mostly through the work of public/private partnerships such as Cooperative Weed Management Areas.
  

Wetland and aquatic invasive plants     TOP

• Harmful Aquatic Hitchhikers: Plants: Hydrilla Identification, distribution, natural history, and management information about invasive Hydrilla.
• Aquatic Invasions Research Directory (AIRD) Created by the Smithsonian Environmental Research Center, is a free database designed to promote information transfer, coordination, and collaborative research on the invasion of aquatic ecosystems. AIRD contains current information on people, research, technology, policy and management issues relevant to aquatic invasions.
• Harmful Aquatic Hitchhikers: Plants: Water Hyacinth Identification, distribution, natural history, and management information about invasive Water Hyacinth.
• Center for Aquatic and Invasive Plants, University of Florida The UF/IFAS Center for Aquatic and Invasive Plants is a multidisciplinary research, teaching and extension unit directed to develop environmentally sound techniques for the management of aquatic and natural area weed species and to coordinate aquatic plant research activities within the State of Florida.
• EPA Aquatic Biodiversity – Exotic Species General description of the impact aquatic exotic species can have on aquatic ecosystems.
• NEMESIS: National Exotic Marine and Estuarine Species Information System “NEMESIS is a resource for information on non-native (or exotic) species that occur in coastal marine waters of the United States.
• Marine Invasions Research Lab A national and international center for research on biological invasions in coastal marine ecosystems.
• Aquatic Nuisance Species Task Force An intergovernmental organization dedicated to preventing and controlling aquatic nuisance species, and implementing the Nonindigenous Aquatic Nuisance Prevention and Control Act (NANPCA) of 1990.
• Sea Grant News Media Center News about aquatic invasive species (regulation, policy, research).
  

Plant pest information      TOP

• The Whiteflies of the World and Their Host Plants and Natural Enemies Gregory A. Evans USDA/Animal Plant Health Inspection Service (APHIS)
• Plant Pest Handbook A guide to insects, diseases, and other disorders affecting plants.
• Plant Pest Identification Aid From Texas A&M's Departments of Entomology and Horticulture.
• California Oak Mortality Task Force Answers to general questions about sudden oak death, as well as more in-depth information.
• Ohio Department of Agriculture Plant Health Division Plant Pest Control Section certifies Ohio's nursery stock producers and dealers by performing inspections to help ensure their proper labeling, viability and freedom from pests and diseases.
• Pest Tracker National Agricultural Pest Information System
• Asian Longhorn Beetle Forest Health Protection from U.S. Forest Service gives comprehensive information on both the impact and natural history of the beetle and current policy and research concerning control.

Native/non-native flora databases     TOP

• Tropicos All the nomenclatural,bibliographic and specimen data collected in Missouri Botanical Garden's electronic databases for the past 25 years are publicly available here.
• USDA Germplasm Resources Information Netework (GRIN): GRIN taxonomic data provide the structure and nomenclature for accessions of the National Plant Germplasm System (NPGS), part of the National Genetic Resources Program (NGRP) of the United States Department of Agriculture's (USDA's) Agricultural Research Service (ARS).
• USDA PLANTS Database Provides standardized information about the vascular plants, mosses, liverworts, hornworts, and lichens of the U.S. and its territories.
• The International Plant Names Index A database of the names and associated basic bibliographical details of seed plants, ferns and lycophytes.
• Index Nominum Genericorum (ING) Smithsonian's compilation of generic names published for organisms covered by the International Code of Botanical Nomenclature.

Purple Loosestrife     TOP

• Purple Loosestrife Information from USGS
• Michigan Sea Grant Purple Pages Purple Loosestrife, biological control, and the impact of invasive species on wetlands in Michigan.
  

Leafy Spurge     TOP

• USDA-ARS TEAM Leafy Spurge Hundreds of articles and other information on the noxious weed leafy spurge and its management.
  

Tamarisk     TOP

• NASA/USGS Tamarisk information The project is devoted to creating a National mapping and forecasting system for invasive weeds.
  

Water Hyacinth     TOP

• Harmful Aquatic Hitchhikers: Plants: Water Hyacinth Identification, distribution, natural history, and management information about invasive Water Hyacinth.
  

Salvinia     TOP

• Nonindigenous Aquatic Plant Species Salvinia information along with detailed species lists, distribution maps and historical information on numerous aquatic plant invaders.
  

Goatgrass     TOP

• National Jointed Goatgrass Research Program This site is an expansion of work completed under the National Jointed Goatgrass Research Program which was funded by series of CSREES-USDA special grants from 1994 - 2009. For information and directed links on problem grass weeds, select from the grass species of interest to you.

Alabama     TOP

• Homeowner Trees and Ornamentals Weed control recommendations 2011
• Invasive Plants Management Project Alabama Natural Resources Conservation Service (NRCS)
• Kudzu in Alabama Control, uses, and history - Alabama Cooperative Extension System
• Alabama Invasive Plant Council

Alaska     TOP

• Alaska Committee for Noxious and Invasive Plants Management
• Alaska Exotic Plants Information Clearinghouse
• Division of Agriculture - Plant Materials Center
• Final Vegetation Treatments Using Herbicides Programmatic Environmental Impact Statement
• Invasive and Noxious Weeds of Alaska USDA

Arizona     TOP

• Southwest Vegetation Management Association
• National Invasive Species Information Center - Arizona
• Invsive Plant Management in the Sonoran Desert - PDF
• Arizona Dept. of Agriculture: Plant Services Division
• Arizona Native Plant Society
• Sonoran Desert Weedwackers: Arizona Native Plant Society
• An Illustrated Guide to Arizona Weeds

Arkansas     TOP

• Arkansas State Plant Board: Noxious Weed
• University of Arkansas Division of Agriculture: Weed Control in Forages
• The Arkansas Native Plant Society

California     TOP

• California Invasive Plant Council
• California Noxious Weed Control Projects Inventory
• Native Habitats: Organizations and agencies for ecological restoration - Links
• UC Davis Weed Research and Information Center
• SF Invasive Spartina Project
• Jepson Online Interchange - California Floristics
  
• California Native Plant Society (CNPS)
• California Oak Mortality Task Force
• Noxious Weed Information Project - CA Department of Food and Agriculture
• The Battle against Invasive Pests and Diseases-CA Department of Food and Agriculture
• California Weed Science Society
• California Forest Pest Council
• California Interagency Noxious Weed Coordinating Committee
• Sudden Oak Death Resources from Calflora
• Santa Barbara County Weed Management Area
• Briefing Paper on Introduced Fish, Wildlife and Plants in the San Francisco Bay/Sacramento-San Joaquin Delta Estuary - 1994 PDF

Colorado     TOP

• Colorado Native Plant Society
• Colorado Invasive Species Mapping Project
• Colorado Dept. of Agriculture Noxious Weed Management Program
• Colorado Weed Management Association

Connecticut      TOP

• Connecticut Invasive Plants Council
• Invasive Species Identification Sheets Natural Resources Conservation Service
• Connecticut Invasive Plant Working Group

Delaware     TOP

• Delaware Noxious Weed Program
• Delaware Invasive Species Council
• Delaware Audubon Society: Plants for a Livable Delaware campaign
  

Florida     TOP

• Florida Native Plant Society
• Center for Aquatic and Invasive Plants, University of Florida
• Institute for Regional Conservation
• Florida Department of Environmental Protection
• Florida Exotic Pest Plant Council
• Noxious Exotic Weed Task Team - USGS South Florida
• Naples Botanical Garden
  

Georgia     TOP

• Georgia Exotic Pest Plant Council
• University of Georgia : Weed Science
• Georgia DNR, Wildlife Resources Division - Animals and Plants
• Georgia Native Plant Society

Hawaii     TOP

• Hawaiian Alien Plant Studies - University of Hawaii Botany Department
• Hawaii's Most Invasive Horticultural Plants - Hawaii DLNR/DOFAW (Dept. of Land and Natural Resources/Dept. of Forestry and Wildlife)
• Pacific Island Ecosystems at Risk Institute of Pacific Islands Forestry
• Hawaiian Ecosystems at Risk project (HEAR)
• Yahoo! Groups : PestNet forum to discuss plant invasion and quarantine in Pacific and Southeast Asia
• Invasive alien species - Secretariat of the Pacific Regional Environment Programme
• Invasive species committees & councils of Hawaii
• Native Hawaiian Plant Society
• Dept. of Land and Natural Resources: Invasive Species
• Hawaiian Invasive Species Council

Idaho     TOP

• State of Idaho Noxious Weeds Program
• University of Idaho: Noxious Weeds
• Idaho Weed Awareness Campaign
• INVADERS Database System The INVADERS Database is a comprehensive database of exotic plant names and weed distribution records for five states in the northwestern United States. The spatial and temporal spread of weeds can be displayed using the historic distribution records in INVADERS. The INVADERS Web site contains actual examples of how land management and weed regulatory agencies are using these data to improve their weed management programs. Noxious weed listings are provided for all U.S. states and six southern tier Canadian provinces. States include Idaho, Oregon, Montana, Wyoming, and Washington.
  

Illinois     TOP

• Illinois Dept. of Natural Resources: Exotic Species
• USDA Forest Service Illinois Plant Information Network
• Midwest Invasive Plant Network
• Chicago Botanical Garden Invasive Plant Science and Policy
  

Indiana     TOP

• Indiana Dept. of Natural Resources: Invasive species
• Dept. of Natural Resources Division of Entomology and Plant Pathology
• Indiana Native Plant and Wildflower Society
• Gyspy Moth Information From Purdue Extension
• Emerald Ash Borer Information From Purdue Extension
• Virtual Plant & Pest Diagnostic Laboratory - Purdue Extension
• Midwest Invasive Plant Network
  

Iowa     TOP

• Iowa State Weed Science Online
• Iowa Woodland Invasives Species Inventory
• Iowa Native Plant Society Home
• Midwest Invasive Plant Network

Kansas      TOP

• Kansas Native Plant Society
• Kansas Department of Agriculture Plant Protection Program

Kentucky     TOP

• Kentucky Exotic Pest Plant Council (EPPC)
• U. of Kentucky College of Agriculture Pest News
• Kentucky Native Plant Society

Louisiana      TOP

• LSU AgCenter: Louisiana Invasive Plants
• Tulane University Invasive Species page
• Tulane: Exotic Species in Louisiana
  

Maine     TOP

• Maine.gov: Invasive Aquatic Plants
• Maine Department of Inland Fisheries & Wildlife - Invasive Aquatic Plants - Milfoil
• Maine's marine invasion:
• Maine 2010 cooperative agricultural pest survey

Maryland     TOP

• Maryland Native Plant Society
• Invasive Species of Concern in Maryland

Massachusetts     TOP

• DCR - Lakes and Ponds program
• National Invasive Species Information Center - Massachusetts
• Invasive species in Massachusetts
• Managing Herbicide Resistant Weeds in Massachusetts
  

Michigan     TOP

• Michigan Invasive Plant Council
• MIPC links to sites on Michigan's invasive plants
• Midwest Invasive Plant Network
• Michigan Sea Grant Purple Pages on Purple Loosestrife

Minnesota     TOP

• Minnesota Native Plant Society
• Minn. Dept. of Agriculture: Pests & Weeds
• U. of Minnesota Extension: Applied Weed Science Research
• Midwest Invasive Plant Network
  

Mississippi     TOP

• Miss. State University: Weeds in Mississippi
• Weeds of lawns, yards, and flowerbeds in Mississippi
• Weeds of pastures in Mississippi
• Mississippi Exotic Pest Plant Council (EPPC)

Missouri     TOP

• Missouri Native Plant Society
• Mo. Dept. of Conservation: Missouri Vegetation Management Manual
• Missouri State-listed Noxious Weeds
• U. of Mo. Integrated Pest Management
• Midwest Invasive Plant Network
• Missouri Botanical Garden :Missouri exotic pest plants

Montana      TOP

• Pulling Together Against Noxious Weeds
• Montana Weed Control Association Noxious Weed Information
• Center For Invasive Plant Management (CIPM)
• Montana Noxious Weed Survey and Mapping System
• U. of Montana, Missoula: INVADERS Database System
  

Nebraska      TOP

• Nebraska Weed Control Association
• Nebraska Department of Agriculture Noxious Weed Program
• USDA Invasive and Noxious Weeds - Nebraska

Nevada      TOP

• Nevada Weed Action Committee
• Nevada Bureau of Land Management: Noxious Weeds & Invasive Species
• Nevada Invasive Species Initiative
  

New Hampshire     TOP

• New Hampshire Department of Agriculture, Markets & Food - Plant Industry
• New Hamp. Dept. of Environmental Services: Exotic Species Program
• New Hampshire Lakes Association - Aquatic Exotics
• Invasive Plants of the Upper Valley
• The Nature Conservancy of New Hamphire

New Jersey     TOP

• Governor forms Invasive Species Council
• Native Plant Society of New Jersey
• New Jersey Dept. of Agriculture: Division of Plant Industry

New Mexico     TOP

• Weed Science at New Mexico State University
• Extension Service Publishes Guide to New Mexico's Invasive Weeds
• Native Plant Society of New Mexico
  

New York     TOP

• The Invasive Species Council of NY State
• New York State Nuisance and Invasive Species
• Adirondack Park Invasive Plant Program
• New York Flora Association

North Carolina     TOP

• North Carolina Exotic Pest Plant Council
• North Carolina Botanical Garden: Invasive Exotic Plants
• North Carolina Division of Water Resources Aquatic Weed Control Program
• Pushy Plants and Alien Animals: Invasive Species in North Carolina
• North Carolina Native Plant Society

North Dakota     TOP

• North Dakota State Land Dept. Noxious Weed List: NXHome
• Weeds and Control Publications from the NDSU Extension Service
• North Dakota Weed Control Assoc.: NDWeeds

Ohio     TOP

• Ohio Department of Agriculture > Plant Pest Control Section Home
• Ohio Division of Natural Areas and Preserves: Invasive Plants of Ohio
• Midwest Invasive Plant Network http://www.mipn.org
  Description: "The goal of the Midwest Invasive Plant Network is to: 'Address the problem of invasive plants and their threat to the Midwest's economy, environment, and human health by providing leadership, facilitating information development and exchange, and coordinating regional efforts.'"

Oklahoma      TOP

• Oklahoma Native Plant Society: FRAMES
• Oklahoma Natural Heritage Inventory: Plant Species of Oklahoma for Listing as Endangered or Threatened
• The Oklahoma Biological Survey: Wetland and Aquatic Plants of Oklahoma
• Oklahoma Vascular Plants Database www.biosurvey.ou.edu/atlasdesc.html

Oregon     TOP

• Harney County Weed Board
• Ivy Removal Project - Home Page
• Native Plant Society of Oregon (NPSO) -- Welcome
• OSU Integrated Plant Protection Center (IPPC) Homepage
• Oregon/Washington Bureau of Land Management (BLM): Noxious Weeds
• U. of Montana, Missoula: INVADERS Database System
  Description: "The INVADERS Database is a comprehensive database of exotic plant names and weed distribution records for five states in the northwestern United States. The spatial and temporal spread of weeds can be displayed using the historic distribution records in INVADERS. The INVADERS web site contains actual examples of how land management and weed regulatory agencies are using these data to improve their weed management programs. Noxious weed listings are provided for all US states and six southern tier Canadian provinces." States include Idaho, Oregon, Montana, Wyoming, and Washington.
• False-Brome Working Group http://www.appliedeco.org/FBWG.htm

Pennsylvania      TOP

• Pennsylvania Native Plant Society
• Muhlenberg Botanical Society: http://mysite.verizon.net/vze7m3zq/MUHLEN/p2.html
• Philadelphia Botanical Club
• Juniata College- Invasive Exotics
• Delaware River Invasive Plant Partnership http://www.paflora.org/DRIPP.html Invasive plant fact sheets and management plans for the Delaware River in New Jersey, New York, and Pennsylvania.
  

Rhode Island     TOP

• The Rhode Island Wild Plant Society (RIWPS)
• Rhode Island Natural History Survey
• RIWPS - Invasive Wild Plants
• Land and Water Partnership
  

South Carolina     TOP

• South Carolina Exotic Pest Plant Council (EPPC)
• SC Aquatic Plant Management Society - Home Page
• Clemson University: INVASIVE SPECIES SERIES
  

South Dakota     TOP

• USDA South Dakota State Noxious Weeds
• South Dakota Wildlife Diversity Program
• South Dakota Weed and Plant List and Maps: http://www.state.sd.us/doa/das/noxious.htm
• South Dakota Dept. of Agriculture: http://www.state.sd.us/doa/das/hp-w&p.htm

Tennessee     TOP

• Tennessee Exotic Pest Plant Council
• Univ. of Tennessee 2000 Weed Control Recommendations
• Invasive Exotic Pest Plants in Tennessee (SEPPC)
• Southeast Exotic Pest Plant Council (SEPPC)
• SAMAB's Southern Appalachian Native Plant and Invasive Species Initiative

Texas     TOP

• Texas Invasive Plant Conference, November 14-16, 2007, Lady Bird Johnson Wildflower Center, Austin, Texas
• Home Page - Native Plant Society of Texas
• Texas Aquatic Plant Management Society
• Texas A&M University: Biological Control for Weeds
• Union of Concerned Scientists − Texas Invasives: texas1.pdf (application/pdf Object)
• Texas Parks and Wildlife, prohibited exotic species http://www.tpwd.state.tx.us/fish/infish/regulate/exotics.phtml
  Description: List of fish, shellfish, and aquatic plants prohibited in Texas and pictures of prohibited aquatic plants from Texas Parks and Wildlife Department.
  

Utah     TOP

• State of Utah Department of Agriculture and Food Noxious Weed Program
• BLM Utah Weed Program
• Utah Native Plant Society Home Page

Vermont      TOP

• Non-native Plant and Animal Species in Aquatic and Wetland Habitats in Vermont : lp_ans-list.pdf(application/pdf Object)
• Environmental Protection Agency: RA Column: Fighting the Spread of Invasive Species in Vermont
• Vermont Dept. of Agriculture: http://www.vermontagriculture.com/invasive.htm
• Water Quality Division -- Aquatic Nuisance Species in Vermont: http://www.anr.state.vt.us/dec/waterq/lakes/htm/ans/lp_ans-welcome.html
  

Virginia      TOP

• Invasive Alien Plant Species of Virginia: VA NHP Invasive Alien Plants List
• VA NHP Invasive Alien Plants List: DCR and Virginia Native Plant Society Cooperative Project
• Virginia Native Plant Society: Invasive Alien Plants in Virginia
• Virginia Tech Weed Identification Site: http://www.ppws.vt.edu/weedwelcome.asp
• Virginia Tech: Gypsy Moth in Virginia
  

Washington     TOP

• Washington State Noxious Weed Control Board: Home Page
• University of Washington Herbarium
• Image Gallery of Washington Plants
• Washington Native Plant Society Home Page
• Plants & Insects Homepage - Washington State Dept. of Agriculture - WSDA
• Snohomish County: noxious weeds
• Invasive Spartina in Willapa Bay
• Washington Flora Checklist
• U. of Montana, Missoula: INVADERS Database System
  Description: "The INVADERS Database is a comprehensive database of exotic plant names and weed distribution records for five states in the northwestern United States. The spatial and temporal spread of weeds can be displayed using the historic distribution records in INVADERS. The INVADERS web site contains actual examples of how land management and weed regulatory agencies are using these data to improve their weed management programs. Noxious weed listings are provided for all US states and six southern tier Canadian provinces." States include Idaho, Oregon, Montana, Wyoming, and Washington.

West Virginia     TOP

• West Virginia Native Plant Society
• West Virginia DNR - Invasive Plants of West Virginia
• West Virginia DNR - Native Vegetation
• Union of Concerned Scientists – West Virginia Invasive Species: wv_invasive_lr.pdf (application/pdf Object)
  

Wisconsin     TOP

• IPAW-Invasive Plants Association of Wisconsin
• About the Monroe County Invasive Plant Species Working Group
• UW- Weed Science Extension Page
• Cofrin Center for Biodiversity: Invasive Plants
• Non-native Plants--Invasive Species--Wisconsin Department of Natural Resources
• Midwest Invasive Plant Network http://www.mipn.org
  Description: "The goal of the Midwest Invasive Plant Network is to: 'Address the problem of invasive plants and their threat to the Midwest's economy, environment, and human health by providing leadership, facilitating information development and exchange, and coordinating regional efforts.'"
  

Wyoming     TOP

• Wyoming Weed and Pest Council
• Jackson Hole Weed Management Association Home Page
• Department of Plant Sciences - Weed Science
• U. of Montana, Missoula: INVADERS Database System
  Description: "The INVADERS Database is a comprehensive database of exotic plant names and weed distribution records for five states in the northwestern United States. The spatial and temporal spread of weeds can be displayed using the historic distribution records in INVADERS. The INVADERS web site contains actual examples of how land management and weed regulatory agencies are using these data to improve their weed management programs. Noxious weed listings are provided for all US states and six southern tier Canadian provinces." States include Idaho, Oregon, Montana, Wyoming, and Washington.
  

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