Abstract: An extendible, collapsible spray drawbar device is disclosed comprising a triangular shaped frame structure adapted at the forward apex end for pivotal attachment to a prime mover and having wheels at the rear base end, transverse spray bar elements pivotally mounted to and extending from the base of the frame structure, wheels pivotally mounted to the outer end of the spray bar element, extension bar elements hingedly mounted to the outer end of the spray bar elements, and support elements pivotally mounted at one end to the transverse spray bar element and pivotally mounted at the other end about a horizontal and vertical axis to a brace member transversely extending across the triangular shaped frame structure. During the spraying operation, the transverse spray bar elements and the extension bar elements extend linearly from the base of the triangular shaped frame structure.