A strange case of herbicide injury in Grape

The context In the summer of 2024, six Ontario vineyards participated in an authorized herbicide trial. The objective was to assess efficacy as well as determine if the product fit the timing for seasonal weed and sucker management. If successful, it could replace the expensive and time-consuming manual labour required to remove suckers. Each vineyard […]

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RPAS Coverage and Drift in Field Corn

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 […]

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Mode of Action and Spray Quality

The decision on which application method is best for herbicides boils down to two main factors: (a) target type and (b) mode of action. In general, it’s easier for sprays to stick to broadleaf plants on account of their comparatively larger leaf size and better wettability compared to grassy plants. There are exceptions, of course […]

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Drone Sprayers – Are we Ready?

One of the fastest moving new agricultural technologies is spray drones. Hardly a month goes by without some sort of new capability, some new features. It’s truly an exciting space to watch. As with all things, there are good news and bad news to share. First the good news. Drone capacity is on the rise. […]

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Spray Drift Basics

It’s not only field sprayers that drift. Photo Credit – G. Amos and D. Zamora, Washington State.

This article is intended as a basic overview of what pesticide spray drift is and how to avoid it. If you want a more in-depth study of the physics of drift, head over here. Defining Drift Pesticide spray drift is the aerial movement, and unintentional deposit, of pesticide outside the target area. Aside from being […]

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