This fact sheet is about maintaining spray quality when there are variations in spraying speed. It discusses the benefits and applications of different spraying systems.

Key points

• Spraying systems that allow for an increased range of spraying speeds can help to reduce overdosing or can prevent nozzle patterns from collapsing when the sprayer slows down.
• Systems that can maintain spray quality as the spraying speed changes can improve spray coverage and minimise drift potential.
• Pulse width modulation systems and twin fluid systems can maintain spray quality over a wider range of spraying speeds than a standard single line sprayer.
• All spraying systems, including the newer ones, will require more than one set of nozzles (or set-ups) to cover all spraying situations.

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