CHURCH PINE ROUND & BIG LAKE P & R DISTRICT: Church Pine, Round and Big CLP, PL, and Knotweed Control


The Church Pine, Round, and Big Lake P&R District is sponsoring a 3-yr project to implement approved activities from the Church Pine, Round, and Big Lake Aquatic Plant Management Plan. Project deliverables include GIS data & maps of areas monitored, aquatic plant & turion monitoring results, examples of AIS education & outreach, AIS monitoring data in SWIMS, management/treatment summaries. Specific project activities include: 1) Curly-leaf pondweed herbicide control; 2) Purple loosestrife and Japanese knotweed control; 3) Pre-post treatment aquatic plant monitoring; 4) CLP bed mapping; 5) Turion monitoring; 6) AIS monitoring & education. 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 and watercraft inspection personnel shall be trained and follow DNR approved protocols; 4) AIS monitoring data shall be entered in SWIMS; 5) Education materials shall be consistent with the Department\2019s statewide education strategy for preventing and controlling AIS. 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
Reports and Documents
On May 24, 2018 11.81 acres of Potamogeton crispus-curly leaf pondweed (CLP) were treated with the herbicide endothall at a target concentration of 1.5-2.5 ppm. The water temperature at the time of treatment was between 59 degrees F. A pretreatment survey was conducted on May 8 and a post treatment survey was conducted on June 4, 2018. A chi-square analysis was used to determine the significance of any reductions in frequency of occurrence. The frequency of occurrence from the pretreatment to the post treatment survey showed a statistically significant reduction (from 43.4% to 0%). A comparison of the post treatment survey of 2017 and the post treatment survey of 2018 showed a decrease from 1.2% to 0% which was not significant. Comparing the pretreatment survey of 2017 to the pretreatment survey of 2018 an increase occurred from 61.6% to 43.4%, which was statistically significant. A chi-square analysis revealed a statistically significant reduction in one native plant species. A turion analysis resulted in a mean turion density increase from 2017 to 2018. The mean turion density increased from 7.5 turions/m2 to 10.3 turions/m2.
Activities & Recommendations
APM Chemical Permit Request
Chemical permit details
Grant Awarded
Grant ACEI21118 awarded