Three commercial air-assisted sprayers were tested in a hedgerow vineyard, at full vegetative development (end of July; leaf area index = 1.94), using a water-soluble food dye as a tracer. The spraying equipment used was (1) a high-volume (1355 l ha - 1 ) axial-fan sprayer; (2) a low-volume (246 l ha - 1 ) compressed-air sprayer (3) a sprayer fitted with deflectable air outlets, allowing an adjustment of the output angle, relative to the row direction, from 90° to 118°. All application techniques appeared to be capable of delivering more than 64% of the sprayed material onto the leaves and grapes. The high-volume sprayer provided the most uniform distribution over the foliage. The change of the output angle from 90° to 118° did not significantly affect total leaf deposition, but increased the overall variability of the deposits.