HGCA's 'disease management in cereals' workshops

Air induction nozzles can reduce spray drift

AN 025 air induction nozzle, a sprayer forward speed of 12km per hour and a water volume of 100 litres per hectare would be a good choice for most fungicide applications.

That’s according to spray application expert Dr Clare Butler-Ellis, a researcher at TAG’s Silsoe Spray Applications Unit.

Dr Butler-Ellis told the workshop that air induction nozzles are one way of keeping drift down and small droplet air induction nozzles work well for most fungicide applications.

Faster forward speeds – 16km/hour and above – may reduce fungicide efficacy, although the evidence available is weak. Spray penetration into the crop is not increased with high water volumes but can be achieved with an angled small droplet air induction nozzle, said Dr Butler-Ellis.

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