Eurasian Watermilfoil (Milfoil)

Scientific name: Myriophyllum spicatum L.

Eurasian watermilfoil was first discovered at Newman Lake in September of 2002 in a small area at the southeast end of Newman Lake near the outlet gate. Eurasian watermilfoil is a non-native highly invasive aquatic weed listed on the state noxious weed list. Beginning in 2003 the Newman Lake Flood Control Zone District (NLFCZD) began implementing control efforts with the assistance of an Early Infestation Grant from Washington State Department of Ecology. A comphrehensive management plan was finalized in October of 2005. To view or download a sections or the complete plan in
Adobe PDF format, please access:

General and Technical Milfoil Information

Websites with extensive information on this invasive aquatic vegetation are listed below.

United States Department of Agriculture (USDA) - Aquatic Species

WA State Department of Ecology - Milfoil Technical Information

WA State Department of Ecology - General Milfoil Information

Milfoil Images

Summer 2008 Milfoil Treatments

Newman Lake will be treated for Eurasian water milfoil with granular 2, 4-D on or shortly after July 22, 2008. Please follow the links below for additional information. Additional areas will also be treated later in the summer. Stay tuned for more information.

Summer 2008 Milfoil Treatment - Residential Notice

Summer 2008 Milfoil Treatment Areas - Map