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United States Department of Agriculture

Agricultural Research Service

Development of improved air assist sprayer for dense nursery crops
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H. Zhu, R.C. Derksen, C.R. Krause, R.D. Brazee
USDA-ARS Application Technology Research Unit, Wooster, OH
R.H. Zondag
Ohio State University Extension
Acknowledgement to Herman Losely & Son, Inc. for support

Objectives:

  • develop a custom-designed, five-port, air-assist sprayer to improve spray penetration into dense nursery canopies while minimizing off-target loss
  • determine optimal sprayer characteristics such as air velocity and nozzle height to provide sufficient spray deposition for effective pest control within dense canopies.

Lab development

Air velocity distribution measurement


Field test
 
Effect of average peak air velocity inside the canopy on spray deposition within canopies


For more information contact:
Heping Zhu

Last Modified: 9/27/2007
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