Do Cumberland County's "ultra-low-volume" spraying trucks really kill West Nile-carrying mosquitos?

CUMBERLAND COUNTY, Pa. (WHTM) -- If they're so harmless that they're not a big concern for people and pets, are "ultra-low-volume" mosquito-spraying trucks really deadly enough against mosquitos to stop the spread of West Nile virus? Yes, said Marcus Snyder, who oversees the spraying program for Cumberland County's vector control program. Snyder -- speaking ahead [...]