Mosquito control - another Minnesota sign of Spring!

Another sign of spring in Minnesota is when the helicopter comes to the wetlands outside my classroom window. According to the local Fox News:

"The helicopters aren't spraying chemicals, but broadcasting a material much like lawn fertilizer. Granules are dropped in sites where mosquitoes are present, then the mosquitoes eat the bacteria, killing the larvae that are in those wetlands." So that's the scientific explanation.