Hayden Lake Watershed Improvement District

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  • The District
    • HLWID – District Matters
      • Improvement District vs. Association – What’s the Difference?
      • Privacy Policy
    • Board of Directors
    • Lake Managers
    • Communication and Public Outreach
    • Monthly Meetings
  • The Watershed
    • Blue-Green Algae
    • Citizen Science
    • HLWID – District Matters
      • Improvement District vs. Association – What’s the Difference?
    • Living on Hayden Lake
      • Rights, Permits, etc.: Who to Contact
      • Lake Debris
    • Invasive & Noxious Weeds
      • Curly-Leaf Pondweed
      • Eurasian Watermilfoil
    • Recreation
    • Water Quality
      • Lake Water Quality Studies
      • Hayden Lake Water Quality
      • Idaho Water Quality Standards & Hayden Lake
      • The Eutrophication of Hayden Lake
    • The Watershed
      • Hayden Lake Watershed
      • Honey Badger Project
      • English Point – a Cherished Resource
  • News
  • Contact Us
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Category: Invasive & Noxious Weeds

Invasive and Noxious plants threaten the dynamic ecosystem of the Hayden Lake Watershed. All stakeholders invest considerable time and money into managing these invaders. But there are right ways and wrong ways to do it. Learn how best to care for the aquatic plant life in Hayden Lake and join in the effort to make and keep Hayden Lake invader-free.

Clean Lakes - contracted applicator for ISDA

North Arm Treated with Galleon SC®

The Curly-leaf Pondweed in the North Arm has seen better days! We hope.

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May 21, 2020

Watch the 2020 Invasive Aquatic Weeds Meeting Video

On April 7, residents around Hayden Lake met with Idaho State Department of Agriculture for the third annual Invasive Aquatic Weeds Information Meeting. Jeremey Varley, ISDA Noxious Weed Manager, shared follow-up information on the 2019 weed treatment and plans for 2020 treatment.

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April 17, 2020
View of Hayden Lake Watershed from above the southern slopes.

2020 Invasive Aquatic Weeds Community Meeting

Spring is knocking at Hayden Lake’s door. We are already seeing green sprouting from the trees and the soil – and from the bottom of the lake in some of its shallower reaches.

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February 25, 2020
Hand-harvesting weeds.

NEA 5th Grade Investigates HL Invasive Species

Northwest Expedition Academy 5th Graders brought their Ecosystem studies to bare on a sticky question with the aid of the HLWID. 

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December 12, 2019
Wakes on Hayden Lake cause shoreline erosion and propogate weeds. Buoys can help manage the damage.

Weeds, Water Quality, and Buoys – on the Association’s Annual Meeting Agenda

The following is a message from Steve Meyer, the Chairman of the Hayden Lake Watershed

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August 13, 2019
Aerial view of Hayden Lake shows treatment areas for August Noxious Weed treatment.

ProcellaCOR to be Used to Treat Milfoil

ISDA is planning noxious weed treatment, specifically Eurasian Watermilfoil, in the main-body of Hayden Lake.  They anticipate an application of ProcellaCOR, a new herbicide recently approved for north Idaho, will take place between August 22nd and August 25th. This map shows treatment areas marked in blue.

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August 10, 2019
milfoil fragment

Eurasian Watermilfoil

Eurasian watermilfoil is an invasive weed, first observed in Hayden Lake at Yellow Banks Creek

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June 25, 2019

Curly-Leaf Pondweed

Curly-leaf pondweed is an invasive weed and a growing problem in Hayden Lake. It was

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June 7, 2019
Map showing locatoins of 5/8/19 water sampling to test for residual Fluridone.

May 8 Water Testing Results – Irrigation Restrictions Cleared

From Jeremey Varley, ISDA, to Mary Ann Stoll, HLWID via email: To all, Yesterday, ISDA

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May 10, 2019
Table of what to expect from Fluridone Treatments.

What to Expect From the SonarOne / Fluridone Applications

AquaTechnex and the Idaho State Department of Agriculture (ISDA) are on the lake today, applying the first treatment of SonarOne in the North Arm.

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April 24, 2019
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Categories
  • Blue-Green Algae
  • Citizen Science
  • HLWID
  • Invasive & Noxious Weeds
  • Lake Debris
  • Living on Hayden Lake
  • Recreation
  • The Watershed
  • Water Quality

Home

News From the 'Shed

’25 Lake Debris Removal Program – Keeping Hayden Lake Safe and Clean

Hayden Creek Area Closed to Shooting Oct. 21-27 ’24

Cyanobacteria-HAB Advisory Continues – Watch Out!

More news ...

The District

  • About the HLWID
  • HLWID – District Matters
  • Board of Directors
  • Lake Managers
  • Communication and Public Outreach
  • Monthly Meetings
  • About the HLWID
  • HLWID – District Matters
  • Board of Directors
  • Lake Managers
  • Communication and Public Outreach
  • Monthly Meetings

The Watershed

  • Blue-Green Algae
  • Citizen Science
  • HLWID
  • Lake Debris
  • Living on Hayden Lake
    • Rights, Permits, Questions, Concerns: Who to Contact
      • Invasive & Noxious Weeds
  • Recreation
  • The Watershed
  • Water Quality
  • Blue-Green Algae
  • Citizen Science
  • HLWID
  • Lake Debris
  • Living on Hayden Lake
    • Rights, Permits, Questions, Concerns: Who to Contact
      • Invasive & Noxious Weeds
  • Recreation
  • The Watershed
  • Water Quality

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Monday 4/16, 7:00 p.m.

HLWID Monthly Meeting

HLWID's Monthly Meetings will move to teleconferencing in order to ensure the health and safety of our constituents. For 4/16's meeting, dial 641-715-0861 and enter code 398963# at the prompt. This is a public meeting; all are welcome.