Our lake was treated on Tuesday morning, June 21. This treatment involved Eurasian Water Milfoil & Curly Leaf Pondweed and minimal treatments along the developed shoreline. This is our second year of the five year Special Assessment District for weed control on Henderson Lake (2015-2019).
In total 2.5 acres of EWM and CLPW were treated by Savin Lake Services. All was in the south bay.
Treatments along the developed shoreline involved mostly algae control and a muck-buster enzyme in a strategy to reduce the worst muck, therefore weeds which grow in the muck. None of the undeveloped shoreline was treated.
The muck-buster enzyme is intended to reduce the levels of decaying vegetation (muck), thereby reducing weed growth and hopefully reduce the need for historic aggressive weed control treatments.
(Click here to see a copy of the June 21, 2016 treatment map.)
On July 15th Savin Lake Services conducted a vegetation assessment of the lake. This was in response to concerns that weed control treatments may have gone too far and were adversely affecting native weeds, particularly Large Leaf Pondweed (Spikes).
(Click here to see a copy of the July 15th Vegetation Report.)
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Photo of Curly Leaf and Eurasian Water Milfoil growing together May 2013.
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Our efforts toward control of the Eurasian Water Milfoil are working. We can't take our eyes off the sights.
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On Tuesday, July 26th Savin Lake Services applied algae control along all the developed shoreline, muck-buster enzyme in the usual areas and weed control in the canal, north shore and very sparsely / as-needed along the developed shoreline.
On September 7 & 15 Savin made the final treatment for 2016. This spread over two dates due to rain which cut short the 9/7 session. Of importance is the new appearance of Phragmities Grass at the south end of the Camp's property, a very invasive species. Please do some reading.
Savin Lake Services has provided their Annual Treatment Summary Report. Click below for a copy.
On September 28th Savin Lake Services took water samples from three areas of the lake. This is related to the concern about weeds and the July 15 sampling and the possibility of excess dissolved Nitrates and/or Phosphates.
(Click here to see a copy of the Water Quality Report.)
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