A scheduled treatment of Eurasian watermilfoil in Lake Opechee in New Hampshire was postponed when the chemical herbicide, Sculpin which is a formulation of 2,4-D, was found to have produced less than optimal results at other locations.
While used successfully in the past, recent visits to other locations treated with the herbicide showed the ineffectiveness. They were expecting to find the milfoil decomposing, but rather found plants that were still healthy.
Treatment will still be planned in the future using a product that is another formulation of 2,4-D , but notices need to be posted prior to use. Overall, 13 acres are set to be treated.