Did you notice Idaho State Department of Agriculture’s Invasive Species boat out on Hayden Lake last week? Their surveys are part of ISDA’s statewide AIS management program designed to protect the integrity of the state’s water bodies from degradation that often results when invasive species take hold. ISDA monitors for invasive weeds and invasive mussels currently found on the Snake River near Twin Falls.
If ISDA designs a treatment plan for AIS, it may involve chemical treatments (like herbicides),
manual harvesting, or a combination of the two. When chemicals are applied, notices are typically sent to neighboring landowners who rely on lake water. How do they know who to contact? They rely on the Idaho Department of Water Resources.
That is why it is so important to ensure your contact information with IDWR is up to date! If you are new to your property, or if you have changed your mailing address, you may need to use one of the following:
Stay tuned for IDSA’s results of their AIS survey, as well as any treatment plans announced for Hayden Lake.
2026 Idaho Aquatic Noxious Weed Surveys Dashboard
NOTE: Chemical treatments typically need to be applied when the targeted
plants reach a certain growth stage. In Hayden, that often happens shortly after the 4th of July holiday.
