Aquatic Plant Management (APM)

How we manage weeds throughout the year - WE RECOGNIZE THERE HAS BEEN AN EXPLOSION OF WEED GROWTH THIS YEAR. WE HAVE A PLAN AND WILL BE EXECUTING THAT PLAN WITH THE DNR IN THE COMING WEEKS. 

April - May 2021

Initial Weed Treatments

This year weed treatments have been delayed due to new harvesting techniques set to begin in June. In collaboration with the DNR we have been asked to hold off on weed treatments until we can test and demo the EcoHarvester and need treatment methods. 
 
Navigation Treatment Map

Wednesday, June 2,  2021

EcoHarvester Demo Day

Please avoid these areas during the demonstration to help reduce water and soil turbidity. Facebook Live sessions and drone footage will be provided. 

Week of June 7

Herbicide Treatments Begin

Treatments to begin including pilot project to treat Eurasian Milfoil growth in Buena Lake. 

Week of June 14

Diver Assisted Suction Harvesting (D.A.S.H.)

Additional D.A.S.H. services to begin in select areas of navigational channels with specific challenges. 

Week of June 21

Mechanical Harvesting Begins

We will be leasing a mechanical harvester to supplement weed cutting until the EcoHarvester is approved and delivered. This is a 30 day lease. 

Late June - Early July

EcoHarvester Begins its Work

Pending approval from the DNR and delivery from the manufacturer we plan to have the EcoHarvester in action by this time. 

Aquatic Plant Managment

Managing weeds

We are acutely aware of the explosive growth of weeds throughout the waterway. Here is an update on our plan of action and what we currently know. First, we are not alone with seeing this early season growth of weeds. Similar situations have been reported on many southeastern Wisconsin lakes. Despite heavy snow and ice coverage this winter, an early ice-off, and abundant sunshine have led to this rapid growth. Secondly, the DNR requested we not treat weeds until after the EcoHarvester demo as they want to see it in operation on healthy weeds (they will get that for sure).

Below is the plan of action:

Wednesday, June 2nd - EcoHarvester Demo
We ask that riparian owners avoid these areas during the demo as we do not want to increase soil and water turbidity. Turbidity is the primary concern for the DNR. Check out Facebook for live updates we provided. We are still awaiting DNR approval.

Week of June 7 - Initial herbicide treatments.
(This includes the pilot project to target Eurasian Milfoil blooms in Buena Lake). Treatments should be completed by 6/10/21

Week of June 14 - Diver Assisted Suction Harvesting (D.A.S.H.) treatments approved for specific areas of concern. Note: this is an added mitigation strategy we did not anticipate having to utilize this year, but the weeds didn't really cooperate this spring.

RIGHT NOW - Mechanical Cutting across the waterway. We are leasing a mechanical cutter for 30 days to tackle as much as we can in navigational channels. Note: this was not anticipated, but absolutely necessary this year. Pending approval from the DNR, which may take 7-14 days to render a decision on the EcoHarvester will begin operation once it is delivered from the manufacturer and approved for operation by the DNR.

We recognize this is a complex plan of action, but we are looking at all options available to us to mitigate weeds in navigational channels. If you have an access point on the waterway where the conveyer trailer could get to the water please let us know as the more locations we have, the more efficient we can be in our approach this year. Be sure to sign-up for our newsletter to stay up to date on plans, strategies, and dredging updates. Also, encourage your friends and neighbors to do the same.

Bill McCormick 

Committee Chair

[email protected]

Committee Documents 

Herbicidal Treatment Permit

2021

Filed with the DNR to allow treatment of specific areas throughout the waterway

Aquatic Invasive Species Areas

2020-21

Data on areas that contain aquatic invasive specials such as Eurasian Water Millfoil. Buena Lake Report

Navigational Lanes/Herbicidal Treatment

2021

Where treatments were performed 

Mechanical Harvesting Lanes

2021

Areas identified as navigation lanes and how mechanical harvesting was performed

DASH Map

2021

Diver Assisted Suction Harvesting (DASH) used in shallow bay locations where traditional week cutting and chemical treatment is limited. 

race track field empty