Abstract: A spray delivery system including a sectional boom attachable to a vehicle. The boom includes first and second movable arms and a fixed arm, each arm housing a plurality of spray nozzles. Each arm can include a frame having openings so that the arms are light-weight and so that the nozzles housed in the frames for protection can spray through the openings in the bottom surface of the frame. The movable arms include an operation position and a retracted position and the arms each include a drift shroud covering to prevent wind from interfering with the application of spray from nozzles. The drift shrouds can include windows that align with the openings in the frame such that an operator can see the spray from the nozzle from the operator's seat in the vehicle.