The survey offered in this post has closed. Results will be posted in the comments below. If you would like to provide feedback to ISDA regarding invasive and noxious weed treatment, please email Jeremey Varley.
Jeremey Varley, Noxious Weeds Specialist for ISDA, has asked the Improvement District to gather input on aquatic weed treatment dates for the North Arm of Hayden Lake. If you live north of Henry Point, your input is needed to help inform ISDA’s decision.
Treatment Date Options:
ISDA will survey the North Arm for Eurasian and Hybrid Watermilfoil during the week of July 5. If survey results indicate herbicide treatment is necessary, a ProcellaCOR application will occur in either late July or late August, depending on multiple factors, one of them being the community’s response via the survey below.
Late July Treatment Scenario: ISDA predicts that irrigation of ornamental, broadleaf, and food plants will be restricted from one to three weeks.
Late August Treatment Scenario: more Milfoil will have grown; a higher dose of herbicide will be needed to bring it under control. ISDA predicts water-use restrictions for three or more weeks.
Who and what will be affected?
ISDA will use plant survey data to determine if and where the herbicide will be applied. Since treatment areas will be defined simultaneously with the gathering of your input, it’s too early to say whether you will be directly impacted or not. You should assume that you will be impacted if you live north of Henry Point.
Eurasian Watermilfoil and Hybrid Watermilfoil will be removed. Most native plants will not be affected.
Water Use Restrictions in ProcellaCOR herbicide-treated areas:
- Drinking-Water – There are NO RESTRICTIONS on the consumption of treated water for potable use by humans, livestock, pets, or other animals.
- Recreation – There are NO RESTRICTIONS for swimming or fishing in the treated areas.
- Turf irrigation – there are NO RESTRICTIONS for irrigating turf.
- Non-food ornamental and broadleaved plants – DO NOT IRRIGATE ornamentals until ISDA lifts this restriction.
- Food Crops – DO NOT IRRIGATE edible plants until ISDA lifts this restriction.
Treatment Decision:
The Improvement District will compile your input and report it to ISDA on Tuesday, July 6.
ISDA will use your input, the plant survey data, and recommendations from the herbicide manufacturer to determine treatment dates. If you have questions, please contact Jeremey Varley.
