Optimise Spray Technique

Be prepared to optimize spraying technique “on the go” - droplet size can be more flexible than timing.

In many cases, delaying spraying can result in the need for a higher chemical dose or an increased number of applications.

The possible reduction in efficacy from using a larger droplet size, which offers less risk of drift, will usually be far less consequential - so long as a good liquid distribution is achieved.

So it is a good idea to have a set of low drift or INJET nozzles on stand-by in case the wind speed increases. It is a lot more convenient and safer to change nozzles and finish spraying than return with a half full spray tank.

Because there can be up to 10% difference in flow for new and worn nozzles both sets of nozzles should be calibrated - even if both sets are ISO nozzles.