Eurasian watermilfoil
Information about the aquatic weed, Eurasian watermilfoil
Eurasian watermilfoil is a harmful weed that has plagued much of the United States for decades after arriving in this country by boat ballast and being further spread by hobby aquarium enthusiasts and motorboats.
- Eurasian watermilfoil drawing photo.
Eurasian watermilfoil forms thick, dense beds that interfere
with boat props, fish, fishing lines and even swimmers. When the mass
of weeds dies out, it creates oxygen starved conditions for fish and
elevates unhealthy nutrient levels, degrading water quality.
The weed is spread easily by boat trailers and boat props.
Since 2006, the state has spent more than $5 million in Bonner
County alone mostly on herbicide, raising concerns about the long-term ecological impacts
of such extensive herbicide use.
The Idaho Conservation League promotes a more balanced and sustainable approach to milfoil control – one that can coexist with recreational uses while protecting fish, wildlife and native plant populations.
