Aquatic herbicide applications to treat aquatic invasive plants are planned for Noxon Rapids and Cabinet Gorge Reservoirs (Sanders County, Montana) and will begin the week of August 4 and may go into the week of August 18, 2014 based on water flow and other environmental conditions. The aquatic herbicides Aquathol K® (liquid endothall), Renovate 3® and/or Triclopyr 3 (liquid triclopyr), will be applied at lower than allowable levels to 180 to 200 acres on Noxon Rapids and Cabinet Gorge Reservoir for the control of Eurasian watermilfoil (EWM) and Curlyleaf pondweed. Treatment areas are primarily along discrete shoreline areas starting at the upstream infestations of EWM, and down through Cabinet Gorge Reservoir. Potable and irrigation restrictions will be in effect in some of the treatment areas until endothall and triclopyr residues in the water are within levels specified by the herbicide label. Post-treatment water quality monitoring will not take place. Therefore, individuals with irrigation and water use intakes near treatment areas are advised to check treatment locations, aquatic herbicide labels, and post-treatment status maps and treatment details at: http://www.cleanlake.com/2014noxonrapidsais.html. There are no fishing or recreation restrictions associated with these herbicides. The application of aquatic herbicides is part of an integrated management program for the control of EWM and Curlyleaf pondweed. Information related to the treatment will be displayed on the applicator’s website: http://www.cleanlake.com/2014noxonrapidsais.html.
Contact Jason Badger, Chair, Sanders County Aquatic Invasive Plants Task Force at jbadger@sanderscounty.mt.gov or (406) 826-3487, or Kim Bergstrom, Facilitator, at pinnacle@blackfoot.net or (406) 546-2447, with any questions.