Distance based calibration is the brainchild of SARDI scientist Geoff Furness.

Traditional approaches to spraying don't take into account critical variables such as the size of the canopy and the density of the foliage.

This growers friendly hand book - Orchard & Vineyard Spraying Handbook for Australia and New Zealand - is the first to explain the concept of distance spray calibration and will help growers deal with recent pesticide label changes.

It contains simple look up tables to take the guesswork out of spraying. The handbook also provides helpful hints on how to set up all common types of orchard sprayers.