Tons of Curly-Leaf Pondweed removed from Iowa Great Lakes this season
Wed 7-3-2019 Spirit Lake, IA
(Spirit Lake)-Tons of Curly-Leaf Pondweed was removed from the Iowa Great Lakes this season, KUOO's Becky Thoreson has details:
The battle with Curly-Leaf Pondweed continues in the Iowa Great Lakes, although the aquatic plant has finished its cycle for this season.
Terry Wilts, Secretary with the East Okoboji Lakes Improvement Corporation says, the chemical treatment last spring was effective. "The folks at the DNR, and my main contact there has been Mike Hawkins, the Fisheries Biologist here, and he's calling the shoreline treatment this year that was done about 80 or 90 percent effective. The treatment that was done in the middle of the lake, especially north of the 9 & 71 bridge was less effective this year, and that had to do, they think, with the flow rates and the high water levels."
He notes that several tons of the plant were removed with mechanical harvesting. "They cut about 19 acres, found it to be much denser and much heavier than we've found in the past. The vendor was able to take off over 600,000 of pondweed out of the system, and that's a big deal as it pertains to both safety and navigation, but also dissolved oxygen levels for the fish."
Hear the full interview:
NOTE: A report on Curly-Leaf Pondweed will be presented at the East Lakes Okoboji Improvement Corporation's Annual Meeting on August 3 at the Dickinson County Nature Center.
For details click here