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Eurasian Watermilfoil
Eurasian watermilfoil is a feathery submerged aquatic plant that can
quickly form thick mats in shallow areas of lakes and rivers in North
America. These mats can interfere with swimming and entangle propellers,
which hinders boating, fishing, and waterfowl hunting. Heavy infestations
may reduce property values. Matted milfoil can displace native aquatic
plants, impacting fish and wildlife.
Since it was discovered in North America in the 1940s, Eurasian
watermilfoil has invaded nearly every US state and at least three Canadian
provinces. Milfoil spreads when plant pieces break off and float on water
currents. It can cross land to new waters by clinging to sailboats,
personal watercraft, powerboats, motors, trailers, and fishing gear.
Eradicating established infestations is nearly impossible. Your help
detecting and reporting new infestations is vital for preventing their
spread.
What you can do:
Learn to identify
Eurasian watermilfoil (see back cover).
Inspect and remove aquatic plants and animals from boat, motor, and
trailer.
Drain lake or river water from livewell and bilge.
Dispose of unwanted live bait in the trash.
Rinse boat and equipment with high-pressure hot water (104 F), especially
if moored for more than a day, OR
Dry everything for at least 5 days.
Report new sightings - note exact location; wrap a plant fragment
in a wet paper towel, place in a sealed plastic bag; and call trie U.S.
Fish and Wildlife Service Fishery Resources Offices in Ashland, WI, (715)
682-6185; or Alpena, MI, (989) 356-5102; or Amherst, NY, (716) 691-5456;
or Essex Junction, VT, (802) 872-0629; or Green Bay, WI, (920) 465-7440;
or Onalaska, WI, (608) 783-8434; or your state Sea Grant program.
REMINDER: Know the rules!
Specimens are needed to confirm sightings, but some jurisdictions prohibit
or discourage possession and transport of Eurasian watermilfoil and other
invasive aquatic plants and animals. Contact your local natural resource
management agency for instructions. Unauthorized introduction of plants or
fish into the wild is illegal. Protect your property and our waters.
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