The Indiana Department of Natural Resources has issued a permit to the Chapman Lake Conservation Association to control up to 120 acres of Eurasian water milfoil in Big Chapman and Little Chapman lakes.
This is a non-native plant that can interfere with boating and crowd out beneficial native plants, the DNR said in its announcement.
It said an aquatic herbicide 2,4-D, will be used by a licensed commercial pesticide applicator to selectively reduce the lake weed.
The DNR said it will cover a portion of the cost through its Lake and River Enhancement Program. LARE funds are generated from a fee charged to boat owners.
The herbicide application is scheduled to be completed before June 1.The DNR said any manmade channels will be inspected by biologists before any treatment is made.
“Aquatic plants, including milfoil, provide habitat for a variety of fish and wildlife species,” DNR fisheries biologist Jed Pearson said in the written statement. “We want to make sure enough plants are present for fish after the herbicide application.”
Biologists are especially interested in ensuring that the northern pike population in the Chapman lakes has enough aquatic plants for cover, the announcement said.