BLM to host virtual meeting on use of additional herbicide active ingredients for vegetation treatments on public lands

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WASHINGTON — The Bureau of Land Management will host a virtual public meeting to gather input on the BLM’s analysis of a proposal to use seven additional herbicide active ingredients to control noxious weeds and invasive species on public lands.  

The meeting will be held on May 16 from 5 to 7 p.m. Mountain Time. Interested parties can register for this event at https://blm.zoomgov.com/webinar/register/WN_31vpG76YRUupxOZyX7NQHg

Notice of Availability published on April 21, 2023, in the Federal Register initiated a 45-day public review and comment period in accordance with the National Environmental Policy Act, which closes June 5, 2023. 

The BLM manages 245 million acres of public lands primarily in the western United States, including Alaska. Approximately one third of these lands, or 79 million acres, are impacted by noxious and invasive weeds. If not eradicated or controlled, these plants can jeopardize the health of public lands and constrain the multiple uses that occur on them. 

“One of the BLM's highest priorities is to promote ecosystem health, and one of the greatest obstacles to achieving this goal is the rapid expansion of noxious and invasive weeds across public lands,” said Brian St George, acting BLM Assistant Director for Resources and Planning. “The BLM applies an integrated approach to vegetation management that may include wise and appropriate use of herbicides to manage weeds.” 

Invasive plant communities can develop resistance to herbicide active ingredients over time, meaning new active ingredients must be developed to overcome such resistance. Several ingredients have been developed and registered over the past several years that provide more effective and efficient tools than those that the BLM currently has approved for use. The BLM is considering adding these new ingredients, including Indaziflam, to its list of approved herbicide active ingredients for vegetation treatments.  

More information regarding this effort and how to provide comments can be found at https://go.usa.gov/xtk6a.


The BLM manages more than 245 million acres of public land located primarily in 12 western states, including Alaska, on behalf of the American people. The BLM also administers 700 million acres of sub-surface mineral estate throughout the nation. Our mission is to sustain the health, diversity, and productivity of America’s public lands for the use and enjoyment of present and future generations.