A spray system and method for selectively applying fluids onto workpieces traveling on a conveyor. A support frame proximate the conveyor supports plural platforms sequentially arranged in the direction of workpiece travel on the conveyor, each platform being above and extending across the conveyor width. Plural carriers are sequentially disposed on each platform across the conveyor width. Each carrier has a nozzle module connected to a source of fluid, a lateral drive enabling bi-directional movement of the carrier across the respective platform and a swing drive for rotating the nozzle module about a swing axis orthogonal to the direction of workpiece travel. A programmable controller coordinates the lateral and rotational orientation of nozzle modules of each carrier and the flow of fluid through the respective nozzle modules to achieve a desired pattern of fluid application onto workpieces traveling on the conveyor.