LDLD Special Newsletter Curly-leaf Pondweed

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Harvesting Permit

The mechanical harvesting permit submitted to the WDNR by the LDLD has been approved. This permit is required in order to harvest Curly-leaf Pondweed in Lake Denoon. The permit is valid for 5 years.

Curly-leaf Pondweed

CLP is a perennial, submerged aquatic plant that is native to Eurasia and is considered an Aquatic Invasive Species. CLP is very prolific and produces turions which can remain viable for at least two years. Turions are “buds” that germinate and sprout after they separate from the mother plant.

Management by “mechanical harvesting” to decrease turion deposition and to reduce the biomass should be done in spring or early summer due to the early growth period. Harvesting also helps remove phosphorus from the lake which can help reduce algae blooms.

Harvesting Plan

The lake district has contracted with Midwest Aquatics in Oconomowoc to harvest and has found a suitable disposal location. Harvesting will begin on Tuesday, June 6 and will target the worst areas first.