So far, Idaho officials have not discovered more invasive quagga mussels

State officials have not detected viable quagga mussels since resuming water sampling this spring, Idaho State Department of Agriculture Director Chanel Tewalt said.

On Sept. 19, 2023, the Idaho State Department of Agriculture announced it discovered invasive, nonnative quagga mussel larvae in water samples taken from the Snake River near Shoshone Falls and Centennial Waterfront Park in Twin Falls.

State officials administered a copper-based chemical called Natrix to kill the mussels along a 16-mile stretch of the Snake River from Oct. 3 to Oct. 13, the Idaho Capital Sun previously reported.

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The mussels are capable of reproducing quickly, covering boat hulls, clogging pipes and pose a threat to drinking water, agriculture, recreational tourism and energy generation, state officials have said.

https://washingtonstatestandard.com/2024/08/14/so-far-idaho-officials-have-not-discovered-more-invasive-quagga-mussels/