Hotline Phone Number

208-332-8694

You can help stop the spread of Eurasian watermilfoil by doing the following:

Clean boats, trailers and watercraft after leaving the water. This prevents spreading it to another body of water.
Pump your bilge before entering another body of water. Eurasian watermilfoil will stay alive in the bilgewater of your boat.

Diagram of areas to clean your boat of aquatic weeds.

Report Eurasian watermilfoil

If you spot what you think is Eurasian watermilfoil, please report it to the following. If you have a GPS or map of the water, mark it and submit this also.

The Idaho State Department of Agriculture at 208-332-8694
Your County Weed Control office;

Learn More

Eurasian watermilfoil, An Aggressive Non-native Water Weed brochure - developed by John L. Wachsmuth, Montana Fish, Wildlife & Parks. (980k PDF file)

Aquatic Invasive Marina Poster - developed by a coalition of agencies and organizations. (520k PDF file)

Eurasian Watermilfoil Task Force - This was a statewide project that received funding through the Idaho State Department of Agriculture Cost Share Program. The Task Force also worked with the Idaho Invasive Species Council.

Read the Eurasian Watermilfoil Task Force End-of-Year (2005) Report (196 Kb PDF file)

Web Resources

Eurasian watermilfoil - Identification and management in Idaho - 8 page brochure developed by the University of Idaho Extension (176k PDF file)
Western Aquatic Plant Management Society - Eurasian watermilfoil information and references.
Understanding Invasive Aquatic Weeds - A Classroom & Homework Activities Workbook published by the Aquatic Plant Management Society. (3.4Mb PDF file)
Biological Control of Eurasian Watermilfoil - Biocontrol information from the Department of fisheries, Wildlife and Conservation Biology at the University of Minnesota