Abstract: A spray nozzle which comprises a generally solid body having substantially parallel opposed faces and a circumferential edge, at least a portion of the circumferential edge describing an arcuate face;a major-sized borehole extending normally into the circumferential edge from a direction opposite the arcuate face and substantially transversely through the solid body;a plurality of angularly arrayed minor-sized boreholes intersecting the major-sized borehole and extending through the arcuate-faced edge of the solid body, the minor-sized boreholes each having an axis intersecting substantially perpendicular to a borehole face of the major-size borehole closest to the arcuate-faced edge;a spray outlet tube mounted in each of the minor-sized boreholes; andmeans for coupling the major-sized borehole to a source of liquid pest control composition under operable pressure for spraying.