Aquatic herbicide applications for the control of Eurasian Watermilfoil (EWM) are planned for the week of August 21, 2023. See below for water use restrictions and treatment information.
**Treatments commenced August 22, 2023**
All management sites scheduled for August 22 through August 24, 2023 have been completed.
Irrigation Restrictions are now lifted for all management areas.
For updates on water use restrictions, see the Idaho State Department of Agriculture (ISDA) Water Right Notice below and
Navigate to the 2023 Treatment Map and find your location in the address bar search tool with updated information.
There are no restrictions for potable water use, swimming, fishing or irrigation.
There are no restrictions for irrigation of turf.
There are no food crop and non-food crop irrigation water use restrictions in effect.
No further updates will be provided.
Provided below is a tentative schedule and treatment map for the Eurasian watermilfoil treatments in Lake Pend Oreille. This schedule is tentative and will be based on weather, lake, and logistical conditions leading up to and during treatment. Treatments will not be carried out during unsafe conditions and could be delayed. Please check back for updates.
Date
Region - See Below Map
Status
August 22, 2023
Long Bridge, Contest Point, Sourdough, Bottle Bay, Sunrise Bay, Warren Island, Cottage Island, Pearl Island, Marten Bay, Glengary Point, Elliot Bay, Hope, Ellisport Bay, Sam Owen, Sheepherder Point, Denton, and Garfield Bay.
Completed
August 23, 2023
Oden Bay, Sunnyside,Trestle Creek, Green Monarchs, and Talache
Completed
August 24, 2023
Evans Landing, Whiskey Rock Bay, Bayview, and Farragut (East of Farragut)
Completed
NOTICE OF 2023 PEND OREILLE LAKE, IDAHO
EURASIAN WATERMILFOIL TREATMENT
Dear property owners and lake users,
Eurasian watermilfoil has been identified as a significant invasive species within the Pend Oreille Lake system of Idaho and is known to negatively affect the beneficial uses of a waterbody. As such, an aquatic herbicide treatment is planned for discrete areas of Pend Oreille Lake system the week of August 21, 2023 based on water and weather conditions. The treatment timing was selected to maximize treatment efficacy when Eurasian watermilfoil is actively growing. Approximately 113 acres of the lake system will be treated with liquid florpyrauxifen-benzyl (ProcellaCOR EC, USEPA Registration # 67690-80). Please see the following website for information on the florpyrauxifen-benzyl herbicide:
Irrigation Use of Water: Do not irrigate established food crops until water use restrictions are lifted. Do not irrigate other non-food crops, such as landscape ornamentals, until water use restrictions are lifted. There is no restriction for irrigation of turf.
Recreational Use of Water in Treatment Areas: There are no swimming or fishing restrictions within the treatment areas.
Potable Water in Treatment Area: There are no restrictions on consumption of treated water for potable use or by pets or other animals.
For up to date information on water use restrictions, treatment date and treatment locations, please visit the Idaho State Department of Agriculture's and the applicator's websites:
Please contact Tom Moorhouse, Aquatic Pest Control Adviser with Clean Lakes, Inc., (208-929-2757) or the Idaho State Department of Agriculture (208-332-8667), with any questions.
For information related to the aquatic herbicide ProcellaCOR® that will be used, please go to the following link where the herbicide label and Safety Data Sheet are available for review:
Additional location information is available at the Idaho State Department of Agriculture website that provides an interactive map at the following link.
