State officials say Idaho needs to keep its foot on the gas as they try to eradicate invasive mussels found in the Snake River three years ago.
Chanel Tewalt, who leads the Idaho Department of Agriculture, told a panel of lawmakers on Tuesday about the extensive steps her agency took this fall to knock out the remaining quagga mussels near Twin Falls.
Divers swam dozens of feet down to the craggy riverbed, spreading two different copper-based pesticides in nooks and crannies where Tewalt believes they evaded previous treatments…