Application Technology Research Unit : Development of improved air assist sprayer for dense nursery crops

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