Lake & Beaches

ODNR BOATER SAFETY

Winter Pool for the Lake is from November 15th through February 15th or no Ice whichever is later.

Apple Valley Lake Weed Control: Herbicide Strategy & Safety Guidelines

To maintain the health and usability of Apple Valley Lake, a targeted herbicide treatment plan is in place using four key products. Each is selected for its effectiveness and safety when used properly.

1. Aquathol K (Endothall)

Use: Controls submerged weeds like milfoil, coontail, and pondweed.
Wait Periods:
- Swimming & Fishing: No restriction.
- Irrigation (turf/ornamentals): Immediate use allowed.
- Irrigation (annual crops, greenhouse, hydroponics): Wait 7 days.
- Animal consumption: Wait 7–25 days, depending on concentration.
- Drinking water: Must be below 0.1 ppm before use. [store.lake...utions.com]

2. Tribune (Diquat Dibromide)

Use: Fast-acting contact herbicide for floating and submerged weeds like duckweed and hydrilla.
Wait Periods (based on application rate):
- Swimming & Fishing: No restriction.
- Livestock watering: Wait 1 day.
- Drinking water: Wait 1–3 days.
- Irrigation (turf/ornamentals): Wait 1–3 days.
- Irrigation (food crops): Wait 5 days. [labelsds.com]

3. Flumigard SC (Flumioxazin)

Use: Systemic herbicide for long-term control of duckweed, watermeal, and algae.
Wait Periods:
- Swimming, fishing, irrigation, livestock: No restrictions listed on label.
- Caution: Avoid use in flowing water or lakes with outlets. Decomposition of treated plants may lower oxygen levels, so split treatments are recommended. [apps.dnr.wi.gov]

4. Cygnet Plus (Surfactant)

Use: Enhances herbicide effectiveness by improving adhesion and penetration.
Wait Periods:
- No water use restrictions beyond those of the herbicide it’s paired with. [killlakeweeds.com]

Safety & Stewardship

All treatments are applied by licensed professionals and follow EPA guidelines. Residents are encouraged to avoid treated areas during posted wait periods and to monitor treatment notices for updates.

Aqua Doc Results from the 2024 Lake Study

(Click for full report)

CLICK HERE TO LEARN EVERYTHING ABOUT THE BEACHES!
No wake hours on Apple Valley Lake are from sunset to sunrise. Click here to view sunrise and sunset times.

Apple Valley Lake is stocked with Bluegill, Carp, Catfish, Channel Catfish, Crappie, Large and Small Mouth Bass, Saugeye, Split Tail Shad, Striped Bass, Suckers, and Walleye.

HOURS FOR BEACH ACCESS
6 a.m. - 10 p.m.