As we reported in October of this year, GLA boat wash staff identified two fragments of Eurasian watermilfoil (“EWM” or Myriophyllum spicatum L.) on watercraft trailers exiting Little Glen Lake. This occurred at the DNR boat launch on Day Forest Road.
We know from other Michigan Lakes including nearby Lake Leelanau and Crystal Lake, that EWM is a highly invasive aquatic plant species. Without early detection, EWM can grow quickly and spread, forming thick mats. The ecological impacts can be devasting and significantly affect recreational lake activities.
The GLA Board-appointed EWM Task Force took immediate action, retaining an expert in drone technology who surveyed the entirety of Little Glen, along with a small portion of Big Glen just east of the M22 bridge. Following the survey, a GLA team led by Watershed Biologist Rob Karner reviewed the resulting high-resolution video footage to identify the exact location of possible EWM colonies. A plan is in place to conduct in-water verification this spring.
A detailed investigation of eradication approaches and evaluation by top lake scientists across our region is underway. Early detection and rapid response are on our side. Count on us to keep you apprised as we roll out our eradication strategy during the 2024 EWM growing season.
What can you do to help?
- Contact the GLA with any of your questions or concerns
- Report any sightings of EWM immediately to the GLA
- Learn more about about EWM, including what it looks like and how to identify it
- Watch this short video for more details.
DO NOT attempt removal by hand pulling, raking, or use of chemicals. It is unlawful to apply chemicals in the water without an EGLE permit and improper removal efforts can spread the infestation.