Selecting a Nozzle Head

July 11, 2013 12:00 AM
Selecting a Nozzle Head

Many factors influence the type of nozzle head needed for herbicide application. Using one nozzle for every chemical is not effective because each chemical has different coverage requirements.

In Episode 5 of Corn College TV Season 3, Farm Journal’s Field Agronomist Ken Ferrie says, "Have a diverse nozzle selection to get the job done without having any environmental impacts that you don’t want." Choosing the wrong nozzle can increase the risk of drift and off-target damage.

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For example, drift can be decreased with a lower-pressure turbo nozzle. Turbo nozzles should be used for systemic herbicides where reducing drift is more important than canopy coverage.

Flat fan nozzles have higher pressure and create smaller droplets that increase coverage. Flat fan nozzles should be used for contact herbicides that become more effective with better coverage.

More information about spray nozzles and weed management can be seen below in Corn College TV Episode 5. Click here to register for 2013 Corn College events this summer.

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