LONG LAKE PROT & REHAB DIST: Long Lake Curlyleaf Pondweed Control

Purpose

The Long Lake P&R District is sponsoring a 3-yr project to implement CLP management activities from the Long Lake Aquatic Plant Management Plan. Project deliverables include all monitoring and GIS data, maps of areas monitored & controlled, AIS monitoring data in SWIMS, and reports documenting the monitoring, control, and native planting results. Specific project activities include: 1) Curly-leaf pondweed herbicide control; 2) Pre-post treatment aquatic plant monitoring; 3) CLP bed mapping; 4) Turion monitoring; 5) Planting native aquatic plants; 6) Volunteer AIS monitoring. Special Conditions: 1) WDNR\2019s Aquatic Plant Management in Wisconsin guidance shall be followed for aquatic plant monitoring; 2) Sponsor shall contact DNR immediately if a new AIS is found; 3) AIS monitoring personnel shall be trained and follow DNR approved protocols; 4) AIS monitoring data shall be entered in SWIMS. This scope summarizes the project detail provided in the application and does not negate tasks/deliverables described therein. Data, records, and reports, including GIS-based maps, and digital images, must be submitted to the Department in a format specified by the regional Lakes Biologist.

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Aquatic Invasives Grant
Aquatic Invasives Control
ACEI20218
2018
Active
 
Reports and Documents
The fall 2017 turion survey predicted there would be little CLP outside the northwest bay; and, following a long winter with nearly record late ice-out, the May 12, 2018 pretreatment survey found so little CLP that it was decided to cancel the 2018 treatment (Figure 3). Hoping CLP’s recovery without treatment would be minimal, the LLPRD, requested a late fall survey to determine the level of any latent CLP turions in the lake’s substrate.
Graphs and data as part of the Curly-leaf pondweed (Potamogeton crispus) Pretreatment and Follow-up Surveys - Long Lake, Polk County, Wisconsin document.
Prior to the planned 2018 herbicide application, we conducted a pretreatment survey of the lake on May 12th to determine initial CLP levels and finalize treatment areas. Because this survey found little CLP, it was decided to cancel the 2018 treatment. However, in order to see how CLP and native plant populations responded to skipping treatment, it was requested that we do a follow-up survey on June 11th. This report is the summary analysis of these two surveys.
 
Activities & Recommendations
Grant Awarded
Grant ACEI20218 awarded
 
Watershed
 
Waters