Update on the Big Star Lake Aquatic Vegetation Management Program

Restorative Lake Sciences March 21, 2017

We have been working with Restorative Lake Services (RLS) to reduce invasive species in Big Star Lake since 2009.  With RSL’s help we have been able to manage and significantly reduce the invasive submersed aquatic plant called Eurasian Watermilfoil (Milfoil).  Milfoil will always be a threat to our inland waterways due to its incredible capacity to spread though mechanisms such as fragmentation, underground stolons, and turions.  Milfoil resembles a bottle brush that is green and may have reddish stems.  When not controlled, it creates a dense surface canopy that can create impediments to navigation and also result in greater fragmentation and spread.

RSL has found small milfoil beds growing in different areas of the lake each season.  RLS conducts whole-lake surveys in the spring and also inventories the lake throughout the season to assure no new milfoil growth is present.  When milfoil is found, a localized aquatic herbicides spot treatment is scheduled to kill the milfoil at the roots.  This process allows favorable native aquatic plant species to grow which is better for the lake fishery and overall lake health.

RLS will be on the lake again in May to survey the lake and address any issues.  RLS is also recommending that the invasive emergent, Phragmites be treated since it grows onshore and can produce large stands of plants that threaten native emergent plants.

RLS will also plan to give an update at the July annual meeting on the lake treatment program.

Restorative Lake Sciences PDF is available to READ HERE