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Maize Application

A maize crop provides a very open canopy to begin with allowing for great coverage using the Defy 3D Nozzle at pre- and post-emergence. As the crop moves through the growth stages the canopy covers and the height differential between the target and the boom height increases. This increases the chance of herbicide been intercepted on route to the target.


Timing Water volume (l/ha) Forward speed Best nozzle Reduced drift option
Pre-em herbicides 100 and above 12-14 km/h DEFY 3D nozzle alternating forwards and back AMISTAR nozzle
Post-em herbicides 100 and above 12-14 km/h (slow down for heavily shaded weeds) DEFY 3D nozzle or Potato nozzle alternating forwards and back DEFY 3D nozzle (or Potato nozzle)

Angled nozzles improve coverage around clods

For optimum pre-emergence application, angled nozzles alternated forward and backward along the spray boom can help give better coverage of cloddy soils. It also helps to reduce risk of drift.

Pre-em maize herbicide application
Post-em maize application

Targeting weeds in the growing crop

As the maize crop increases in size, so does the amount of herbicide spray that it intercepts at the time of application - thus
significantly reducing the dose targeted weeds receive. Again, angled nozzles alternated forwards and backwards along the spray boom improve spray penetration of the canopy and target weeds more effectively.