BOULDER, Mont. - In an out-of-the-way hot-spring pond just outside of Boulder, a century-old colony of tropical fish known for their appetite for mosquitoes is giving health officials another way to ...

Sep. 7—An overabundance of a wetland plant is wreaking havoc at a freshwater marsh pond in northern San Rafael. The dense vegetation in the 20-acre pond managed by the Las Gallinas Valley Sanitary ...

Vector Biologist Monica Patterson analyzes a mosquito sample at the Turlock Mosquito Abatement District office in Turlock, Calif., on Wednesday, May 4, 2016. Andy Alfaro [email protected] Mosquitoes ...