This Air Tractor 802 from Columbia Basin Helicopter is set to be used Saturday to spray the Btk pesticide for gypsy moths in the South Sound.
This Air Tractor 802 from Columbia Basin Helicopter is set to be used Saturday to spray the Btk pesticide for gypsy moths in the South Sound. Columbia Basin Helicopter Courtesy
This Air Tractor 802 from Columbia Basin Helicopter is set to be used Saturday to spray the Btk pesticide for gypsy moths in the South Sound. Columbia Basin Helicopter Courtesy

Gypsy moth pesticide Btk not harmful to humans

April 13, 2016 03:19 PM