Jason Deveau (Spray Guy)

Green-on-Green in Ontario: A Custom Operator’s Experience with See & Spray Premium

Posted on February 27, 2026 (March 12, 2026)

In the summer of 2025, Todd Frey of Clean Field Services (Drayton, Ontario) and I participated in the Elora Weeds Tour. We discussed his new John Deere See & Spray Premium and the practical considerations for implementing green‑on‑green spraying in Ontario (Figure 1). With that first season squarely in the rearview mirror, I reached out […]

Drone Tendering – Considerations before Buying or Building

Posted on February 13, 2026 (March 6, 2026)

Acknowledgments Much of this article is based on a session and tradeshow I attended at the 2026 Drone End-User Conference in Kansas City. I want to acknowledge the insightful information provided by the three session speakers, as well as the ~200 audience members that asked honest questions and shared their experiences. The speakers were Mr. […]

The Carvalho Boom and the Stages of Quadcopter Flight

Posted on February 6, 2026 (February 25, 2026)

The Hypothesis The results of a recent herbicide deposition study performed with the DJI T100 led us to observe that after ~13 m/s, swath width and drift were no longer directly related to travel speed; They appeared unaffected. The result was completely unexpected as it was counter to several years of prior study with smaller […]

Wanted: A new technology for assessing spray coverage (The Spray Doctor – Part 1)

Posted on January 23, 2026 (January 23, 2026)

“If you can’t measure it, you can’t improve it”. While the source is nebulous (Peter Drucker, Lord Kelvin, or Antoine-Augustin Cournot), the sentiment is clear. The status quo In the world of crop protection, considerable resources are expended to distribute a pesticide over a target. And yet, sprayer operational settings and spray coverage are rarely […]

Crop-Adapted Spraying in Highbush Blueberry: Nine years of pesticide savings

Posted on January 6, 2026 (January 8, 2026)

This case study is taking place on a 15 acre highbush blueberry operation in southern Ontario. In 2016, considerable pressure from spotted-wing drosophila (SWD) prompted the growers to make changes to their crop management practices and their spray program. They employed a three-pronged approach to improving crop protection: We have been tracking pesticide use, water […]