How Canadian Crop Protection Products are Assessed for Safety

As originally published by The Grower, August 2020. Pests such as insects, diseases, and weeds can affect our quality of life in many different ways. Pests can represent a threat to public health and the environment as well as create substantial negative impacts to the economy if they are not sufficiently managed. Crop protection products […]

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Ten Tips for Spraying in the Wind

Choosing the right time to spray can be tricky. Our gut tells us that spraying when it’s windy is wrong.  The experts tell us that spraying when it’s calm is wrong. So when can you actually spray? I’ve always advised my clients to spray in some wind, because it has a few advantages. The main […]

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Mode of Action and Spray Quality

The decision on application method 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 – at the […]

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Pesticide Safety for Student Workers

This article is based on a presentation by Dr. Melanie Filotas, who delivered it as part of the 2019 agriculture summer student orientation day. Most crops are sprayed with organic or synthetic pesticides at some point during the growing season. Use caution before entering any area where crops are grown (e.g. corn field, nursery, greenhouse, orchard […]

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Thermal Inversions for Sprayer Operators

The Earth’s Atmosphere. The illustration of the Earth is to scale, but the landscape is not. Our focus in on the Surface Boundary Layer.

In April 2014, NDSU extension published an excellent factsheet explaining what thermal inversions are, how to detect them and how they affect pesticide spray drift. That factsheet inspired this article. The Atmosphere The Earth is surrounded by a layer of air called the atmosphere. Think of it as a sheet of liquid percolating and flowing […]

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