Author: Jason Deveau (Spray_Guy)

About Jason Deveau (Spray_Guy): Dr. Jason Deveau (@spray_guy) has been the OMAFRA Application Technology Specialist since '08. He researches and teaches methods to improve the safe, effective and efficient application of agricultural sprays in specialty crops, field crops and controlled environments. He is the co-administrator of Sprayers101, co-author of the Airblast101 Textbook, a slow cyclist and an even slower runner.

Posts by Jason Deveau (Spray_Guy)

The State of Drone Spraying in Canadian Agriculture (2023)

Posted on October 12, 2023 (October 18, 2023)

In Canada, the use of drones for pesticide application, otherwise known as Remote Piloted Aerial Systems (RPAS), is regulated by two Federal Departments: Transport Canada establishes regulations for safe operation and Health Canada for the registration and conditions of use of pest control products. Drones are already used in Canadian agriculture for crop surveillance and […]

Closed Transfer Systems (Agritechnica 2023 Update)

Posted on September 11, 2023 (April 8, 2024)

This article was co-authored by Mick Roberts (Owner/Editor of Pro Operator Magazine) with significant contributions from Jan Langenakens (Principal at AAMS) and thanks to insightful communications with both users and manufacturers of CTS. It now includes updates from the 2023 Agritechnica Trade Fair. What is a Closed Transfer System? Closed Transfer Systems (CTS) permit the […]

Evaluating wheat head coverage from two new nozzles

Posted on July 25, 2023 (July 27, 2023)

We’ve written extensively about angled flat fan nozzles and their ideal operating parameters (i.e. pressure, boom height, droplet size, volume and travel speed) for spraying wheat heads. Generally, coverage on the sprayer-approach side of a wheat head (aka the advance side) is easier to achieve because droplets from a conventional flat fan geometry tend to […]

RPAS Coverage and Drift in Field Corn

Posted on July 20, 2023 (March 19, 2024)

This work was performed with Mark Ledebuhr (Application Insight LLC.), Adrian Rivard (Drone Spray Canada) and Adam Pfeffer (Bayer Crop Science – funding partner). Amy Shi is gratefully acknowledged for her assistance with statistical analysis. Introduction In June 2017, Transport Canada cleared the general use of drones. In 2018, Health Canada clarified that the use […]

Avoiding Skips from PWM Sprayers

Posted on June 28, 2023 (July 21, 2023)

Does this sound familiar? “This year was the first year we used a growth regulator on our wheat. After heading, we noticed a wavy pattern of different plant heights between 30 and 45° to the operating direction. It was only a couple inches difference and was difficult to photograph. We sprayed 12 gpa at 9 […]

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