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<br /> <br />Stubbs Bay Hennepin County: LVMP start year- end year (2024-2029) 1 | P a g e <br /> <br />DNR Lake Vegetation Management Plan <br />The treatment protocols or management goals may change as new information becomes available and will be <br />approved by the MnDNR. This variance does not preclude the requirements of applying for, and obtaining <br />aquatic vegetation control permits (IAPM permits) as per Minnesota Rule chapter 6280. Refer to Lake Cooperator <br />Data Summary for historic lake plant data, managament history and water quality data. <br />Stubbs Bay, Lake Minnetonka, Hennepin County (27-0133-12) <br />Date Signed: 4/14/2025 Expiration Date: 10/1/2030 <br />Management <br />Targets(s): <br />Curly Leaf Pondweed (CLP), Hybrid and Eurasian Water Milfoil <br />(EWM/HWM) <br />Variance Conditions: <br />This Lake Vegetation Management Plan (LVMP) authorizes a 5 variance <br />from time of signing to perform herbicide treatments greater than 15% of <br />the littoral area with herbicides to control EWM/HWM. <br />Lake Description <br />Location: Stubb’s Bay, Lake Minnetonka <br />Major Watershed: Mississippi River-TC view <br />Total Acres: 196.79 acres Average Secchi (m): 1 Meter <br />Littoral Zone: 113 acres Trophic State: Eutrophic <br />Maximum Depth: 30 ft Total Phosphorus: 48 PPB <br />Problem Identification: <br />1. CLP Delineations 2024 = 2.5 mean density rating on a scale from 0 <br />to 3. <br />2. EWM/HWM exists at 11% Frequency of Occurrence, August of 2024 <br />(hereafter FOO) <br />Management Goals: <br />1. Reduce CLP Population to less than 1.5 mean density rating <br />2. Maintain EWM/HWM below 20% FOO annually (August PI Survey) <br />3. Increase native submersed species /point to > 1.5 FOO <br />4. Maintain number of native submersed species at 18 over 5 years <br />Proposed Actions: <br />1. Whole Bay- Fall / Fluridone treatment at 2-4 ppb to control CLP and <br />EWM (2025) <br />2. Annual CLP Treatments using approved herbicides in excess of 15% <br />of the littoral area if needed. <br />62