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What is the Regulated Weeds Database?

The Regulated Weeds Database is a comprehensive resource that tracks and displays information about regulated weed species across different U.S. states. Our goal is to provide researchers, agricultural professionals, and the public with easy access to information about which weeds are regulated in different states.

This project compiles data from state agricultural authorities to create an interactive map and searchable database of regulated weed species.

Method

To comprehensively identify regulated weed species, we conducted systematic research using authoritative and reliable sources. Our approach included the following steps:

  • Data Collection from Authoritative Sources: We reviewed and extracted information from government websites (e.g., state departments of agriculture, environmental protection, and natural resources), academic institutions (e.g., university extension programs specializing in invasive and noxious weeds), and reputable non-governmental organizations (NGOs) focused on plant conservation and invasive species management.
  • Compilation of State-Specific Lists: For each state, we compiled a list of regulated weed species, ensuring that our data captured variations in regulatory definitions (e.g., noxious weeds, invasive plants) and species classifications unique to each jurisdiction.
  • Comparison with the Federal List: The compiled state-specific lists were systematically compared with the federal noxious weed list published by the United States Department of Agriculture (USDA). This allowed us to identify discrepancies, overlaps, and gaps between state and federal regulations.
  • Verification and Cross-Referencing: We cross-referenced the findings to ensure accuracy and consistency. This included validating species names and classifications to account for synonyms and taxonomic updates.

This method ensured a comprehensive and accurate assessment of regulated weed species, providing insights into the alignment and divergence of weed management policies across state and federal jurisdictions in the United States.

Data Sources

Our database is compiled from official state regulatory lists and is regularly updated to reflect the latest regulations. The data includes:

  • Common and scientific names of regulated weed species
  • State-by-state regulation status
  • Distribution information across states
Alabama
Alabama Department of Agriculture and Industries last updated 2000
Alaska
Alaska Department of Natural Resources last updated 2013
Arizona
Arizona Department of Agriculture last updated 2024
Arkansas
Arkansas Department of Agriculture last updated 2024
California
California Department of Food and Agriculture last updated 2021
Colorado
Colorado Department of Agriculture last updated 2023
Connecticut
Connecticut Invasive Plant Working Group last updated 2004
Delaware
Delaware Department of Agriculture last updated 2012
District of Columbia
USDA last updated 2024
Florida
Florida Department of State last updated 2024
Georgia
USDA last updated 2024
Hawaii
Hawaii Department of Agriculture last updated 1992
Idaho
Idaho Invasive Species Council last updated 2009
Illinois
University of Illinois Extension last updated 2022
Indiana
Indiana Department of Natural Resources last updated 2019
Iowa
Iowa State University Extension and Outreach last updated 2017
Kansas
Kansas Department of Agriculture last updated 2023
Kentucky
Kentucky Transportation Cabinet last updated 2023
Louisiana
Louisiana Department of Agriculture and Forestry last updated 2022
Maine
Maine Department of Agriculture, Conservation and Forestry last updated 2024
Maryland
Maryland Department of Agriculture last updated 2020
Massachusetts
Massachusetts Department of Agricultural Resources last updated 2023
Michigan
Michigan Department of Agriculture and Rural Development last updated 1994
Minnesota
Minnesota Department of Agriculture last updated 2023
Mississippi
Mississippi Department of Agriculture and Commerce last updated 2006
Missouri
Missouri Department of Agriculture last updated 2024
Montana
Montana Department of Agriculture last updated 2019
Nebraska
Nebraska Department of Agriculture last updated 2012
Nevada
Nevada Department of Agriculture last updated 2021
New Hampshire
New Hampshire Department of Agriculture, Markets & Food last updated 2023
New Jersey
New Jersey Department of Agriculture last updated 2004
New Mexico
New Mexico Department of Agriculture last updated 2020
New York
New York State Department of Environmental Conservation last updated 2015
North Carolina
North Carolina Department of Agriculture and Consumer Services last updated 2010
North Dakota
North Dakota Department of Agriculture last updated 2021
Ohio
Ohio Department of Agriculture last updated 2018
Oklahoma
Oklahoma Department of Agriculture, Food, and Forestry last updated 2000
Oregon
Oregon Department of Agriculture last updated 2020
Pennsylvania
Pennsylvania Department of Agriculture last updated 2024
Rhode Island
USDA last updated 2014
South Carolina
Clemson University Plant Industry Division last updated 2024
South Dakota
South Dakota Department of Agriculture and Natural Resources last updated 2020
Tennessee
Tennessee Department of Agriculture last updated 2009
Texas
Texas Secretary of State last updated 2013
Utah
Utah Department of Agriculture and Food last updated 2022
Vermont
Vermont Agency of Agriculture, Food and Markets last updated 2010
Virginia
Virginia Department of Agriculture and Consumer Services last updated 2024
Washington
Washington State Noxious Weed Control Board last updated 2023
West Virginia
West Virginia Department of Agriculture last updated 2024
Wisconsin
Wisconsin Department of Natural Resources last updated 2015
Wyoming
Wyoming Weed and Pest Council last updated 2011

Contact

For questions, suggestions, or corrections, please contact us at: contact@example.com