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Information Bulletin 53

posted Dec 5, 2016, 7:32 AM by Keith Gilbert
Date:  December 5, 2016
From:  LJIS Board

On October 14 we sent an email to alert you that Eurasian Watermilfoil (EWM) was discovered in Lake Johanna. The purpose of this email is to provide more information about what we know at this time, and to ask for your help.

EWM was discovered in Lake Johanna on 6/13/2016 in 2 locations--the SW corner and the N side--by a Conservation Corps MN crew performing baseline AIS surveys for the MN DNR. Unfortunately, the DNR did not notify the Lake Johanna Improvement Society about this discovery.

On 10/13/2016 a neighbor notified the board that a sign announcing the presence of EWM was posted at the public access. We immediately contacted an invasive species specialist at the DNR to find out more details. On 10/27/2016, a specialist from the DNR surveyed portions of the shoreline around the lake and “found a good amount of EWM widely distributed in areas around the lake." This map shows the details of his observations.

It is the DNR’s opinion that, despite the extensive aquatic plant surveys our association contracted in 2009, 2013, and 2015, EWM has likely been in the lake undetected for 2-3 years, perhaps more, based on the wide distribution of EWM.

The DNR has advised us that eradication of EWM from the lake is not a realistic option at this point. We will need to manage it when and if it becomes a nuisance, as we do with other invasive species as well as native vegetation in the lake.

You can find more information on the LJIS Web site here as well as here. This is where you come in. We need your help!

1. Continue to partner with us as we collect funds each spring to coordinate our spraying and goose control efforts. Only by banding together can we be effective lake-wide.

2. Join us on the board. We have an immediate board vacancy to be filled now, and 3 more board positions opening in the spring. It is critical that we maintain a healthy board to guide the LJIS response to EWM and other invasive species. Contact one of us on the board if you can help.
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