About Milfoil

This species is not native to our state and is very difficult to control once it becomes fully established. Milfoil reproduces through fragmentation whereby plant fragments break off from the parent plant through wind or boat action, grow roots, and settle in a new location. Milfoil spreads rapidly and displaces beneficial native plant life. It makes swimming difficult and can devalue waterfront property. Where this species grows in its native environment, insects and fish may feed on this plant at such a rate as to control its growth. In our area, milfoil has no natural predators to keep its population in check. Under optimum temperature, light and nutrient conditions, milfoil may grow up to an inch per day. How did exotic milfoil become established in this state? It was most likely a "stowaway" fragment attached to a boat or trailer that came to this region. Milfoil can live out of water for many hours if it remains moist.

 See Amy Smagula's report on invasive plant and animal species: Amy Smagula

Milfoil Data Maps
 
The links below will connect you to interactive maps with milfoil harvest data from the past two and a half years (2012, 2013, 2014 through mid-July).  You can use the map filtering menu to select a time frame.  
 
Intensity map:  To see a map that charts the intensity of milfoil infestation (using the format called a "heat map," although it does not indicate water or plant temperature), click here:
 
 
Marker Points Map:  To see a map with markers at milfoil locations, click below. On this map, you can select a marker to see data associated with that point.
 
 

To view aquatic invasive species overview, and lake host video:

Mascoma Lake Association  PO Box 9  Enfield, New Hampshire  03748  mla@mascomalakeassociation.org

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