US Patent 7344091 Spraying

Spraying apparatus (1) is provided that has two horizontally disposed upright spray arm assemblies (33) that each carry sprayers (43). Each spray arm assembly (33) has a sprayer (43) in an upper part (35) and a sprayer (43) in a lower part (37). The upper part (35) is able to move relative to the lower part (37) so the axis of spraying from the upper part (35) will be downwardly directed towards an upper part of crop to be sprayed. The spray arm assemblies (33) are mounted on respective arms (25) for moving laterally inwardly or outwardly relative to a longitudinal direction of a row of crop to accommodate for different width crops and/or different crop row widths.