New Sprayer Extension Fact Sheets for Orchards and Vineyards – Ohio Ag Net

By Erdal Ozkan

A new series of Ohio State University Extension fact sheets are now available online. The series includes seven fact sheets each covering a specific topic associated with effective and efficient spraying in orchards and vineyards. Topics include best practices for effective spraying, selecting the right type and size of nozzle, strategies for minimizing spray drift, strategies for maximizing pesticide deposition and coverage on target, calibration and adjustment of sprayers, new developments in spray equipment and general best practices. for effective and efficient spraying in orchards and vineyards. A list of the seven fact sheets with links to find them online is provided below.

This series of fact sheets is the most comprehensive collection of all the essential aspects of spraying in vineyards and orchards. For example, Sprayers for Effective Pesticide Application in Orchards and Vineyards (FABE-533) provides details, with 41 photographs, of a variety of sprayers used to spray fruit crops. This is the first fact sheet of its kind in the United States with information in one publication on different types of sprayers: hydraulic, pneumatic, adjustable nozzle sprayers, multi-row adjustable sprayers, airblast sprayers tower type, air assisted sprayers. with multi-head fans, tunnel sprayers and pneumatic air shear sprayers.

Although nozzles are among the least expensive components of a sprayer, they are of great value in their ability to influence sprayer performance. The nozzles measure the amount of liquid sprayed per acre and how effectively, efficiently, and evenly the sprayed pesticide deposits on the target canopy. Nozzles also help determine droplet size, affecting both target coverage and the risk of spray drift. Nozzle selection, particularly determining the size needed for a given application rate and sprayer travel speed, is more complicated with air-powered orchard/vineyard sprayers than selecting the correct nozzle size for field crop sprayers. Publication FABE-534 explains how to select nozzles and determine the correct size.

If you haven’t calibrated your airblast sprayer used for spraying fruit, you should take a look at FABE-537 which covers both topics: an easy way to determine the actual application rate in gallons per acre and adjusting the airflow to achieve maximum pesticide deposition on the target while minimizing spray drift. All the best practices one can follow to get the best efficiency in spraying vineyards and orchards can be found in FABE-539.

Another unique fact sheet (FABE-538) provides information on new technologies used in spraying orchards and vineyards, such as the use of drones, and a smart sprayer developed in Ohio for application. variable pesticide rate. Field trials have shown this spray technology can reduce aerial spray drift by up to 87%, reduce spray loss to the ground by 68-93%, reduce spray volume by 47%-73% (depending on the characteristics of the canopy at the time of spraying), and effectively control insects and diseases.

Here is a complete list of these publications and the links you can use to reach them online at the OSU Extension Publications website, Ohioline:

• FABE-533: Sprayers for Effective Pesticide Application in Orchards and Vineyards https://ohioline.osu.edu/factsheet/fabe-533

• FABE-534: Selecting the right type and size of nozzles for effective spraying in orchards and vineyards https://ohioline.osu.edu/factsheet/fabe-534

• FABE-535: Strategies to Minimize Spray Drift for Effective Spraying in Orchards and Vineyards https://ohioline.osu.edu/factsheet/fabe-535

• FABE-536: Strategies to Maximize Pesticide Deposition and Coverage for Effective Spraying in Orchards and Vineyards https://ohioline.osu.edu/factsheet/fabe-536

• FABE-537: Calibration of Orchard and Vineyard Sprayers https://ohioline.osu.edu/factsheet/fabe-537

• FABE-538: Technological Advances for Effective Spraying in Orchards and Vineyards https://ohioline.osu.edu/factsheet/fabe-538

• FABE-539: Best Practices for Effective Spraying in Orchards and Vineyards https://ohioline.osu.edu/factsheet/fabe-539For more information on the factsheet series, please contact Dr. Ozkan ([email protected]).

Erdal Ozkan, professor and agricultural extension engineer, can be reached at 614-292-3006 or [email protected] This column is provided by the OSU Department of Food, Agricultural and Biological Engineering, OSU Extension, Ohio Agricultural Research & Development Center, and the College of Food, Agricultural and Environmental Sciences.

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