Apply through a well maintained conventional hydraulic sprayer as a MEDIUM or COARSE spray (BCPC definition). Ensure that the sprayer is correctly calibrated before use. Do not leave the spray liquid in the sprayer for long periods (i.e. during meals or overnight). Ensure that the sprayer boom is adjusted in height so that the spray pattern gives good, even cover. Knapsack applicators PROLIANCE QUATTRO may be applied through knapsack sprayers.Cover weed leaves evenly, but do not spray to the point of run-off. CDA applicators When using rotary atomisers the spray droplet spectra produced must be of a minimum Volume Median Diameter (VMD) of 200microns. Select the correct rate of PROLIANCE QUATTRO and make up to desired volume with CLEAN water. Calibrate and operate according to manufacturer's instructions. Hand-held weedwipers PROLIANCE QUATTRO may be applied through a hand-held weedwiper. Use a concentration of 1 part of PROLIANCE QUATTRO to 2 parts water. Do not exceed this maximum concentration. A water based dye may be added if required.