Eurasian Watermilfoil

The results are in on the Eurasisn Milfoil treatment performed this summer and they are better than expected.  Last July, the City implemented the initial phase of teh milfoil removal plan.  This was performed with teh use of a systemic herbicide that affects milfoil plants but not other desired aquatic vegetation.  The treatment was applied over a one day period and within two weeks the milfoil started showing stress.

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The treatment of the 2011 milfoil in Lake Stevens is considered to be highly successful, delivering well over 95 percent control of the Eurasian Milfoil. In a site survey it was found that teh majority of the milfoil plant stands have crashed to teh lake bottom and were not visible.  In scattered areas within teh large treatment zones, there remained some severly damaged stems vertical in teh water colmn but well below the surface.  These plants are not expected to survive the winter.  In a few locations there are some plants that still show some life in them.

The City is planning on the next treatment in an on-going effort to total rid the lake of milfoil plants.

AquaTechnex has created a web site to provide information on the 2011 treatment and other links to related information.  You can visit their site by clicking here.

Click on one of the following to view information:

Project Information and Status - AquaTechnex site

Integrated Aquatic Vegetation Management Plan

2010 Eurasian Watermilfoil Density Map

Press Release (March 2011)

Triclopyr Fact Sheet