Invasive Species Management Projects

Flowering Rush

The Pelican River Watershed District has been working with Dr. John Madsen and Dr. Grey Turnage from Mississippi State to monitor the effectiveness of Flowering Rush control and potential eradication with the use of carefully applied herbicides.  Since the beginning of the project in 2005, large reductions in Flowing Rush beds have been observed throughout the District.

2014 Flowing Rush Study

2015 was the first year of the "management" phase of the research.  With the assistance of Dr. Madsen and Dr. Turnage we are developing treatment "thresholds" as a guide of where and when we will chemically treat.  These "thresholds will hopefully allow us to maintain low populations of a plant with as little chemical application as possible.  Click the link below to read about what the current treatment plan is.

2015 Pre-Treatment Summary

Flowering Rush regression photos can be seen below.

Deadshot Bay

Busker's Beach West


Curly-Leaf pondweed

The PRWD obtains permits from the MN DNR each year to harvest curly-leaf pondweed help control the population and density.  No eradication techniques has been found, however, harvesting has allowed for recreational activities to continue.  The District also has a weed-pickup service for lake-shore residents.  This program allows lake-shore owners to remove vegetation that drifts to their shore and place it by the road for the weed-pickup service to collect throughout the summer.


Zebra Mussels

Zebra Mussel samplers are placed in strategic location in the spring and monitored throughout the summer.  These samplers are a structure that allow zebra mussel veliger larvae to attach to and grow.  By monitoring these we can monitor where the spread is contained to and where possible new infestations would be located.

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PRWD in the News

MPR News Story on PRWD Flowering Rush Project

Dan Gunderson, MPR News, visited Lake Sallie with Brent Alcott to discuss the success of the…

MnDNR begins ZM pilot project treatment

Water Management Plan Update

The Pelican River Watershed District Board of Managers is seeking your input to help us with…

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Recent Water Levels
Detroit 1333.9 ft
Last Updated: 7/24/2017
Floyd(s) 1353.9 ft
Last Updated: 8/3/2017

Melissa 1328.0 ft
Last Updated: 7/24/2017
Sallie 1329.0 ft
Last Updated: 7/24/2017

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