Sprayer manufacturers have all but offloaded the entire responsibility for drift management to the sprayer nozzle. It’s asking too much. Sprayers have changed a lot over the past 25 years. They have become larger, with more tank capacity, boom width, and, if self-propelled, horsepower. They are more comfortable and ergonomic, with more sophisticated swath control […]
This short article is a thought exercise designed to give some perspective on chemical rates, carrier volumes and the foliar area we expect them to protect. Imagine we are spraying the fungicide Captan on highbush blueberry. In Canada, the label rate is to apply 2kg/ha (28.5oz/ac) of planted area. Captan is 80% active ingredient, so […]
Drift symptoms can take a few weeks to be discovered, and to figure out the cause, people need to reconstruct the conditions during the application in question. Wind direction is the easiest. But when we consider factors like inversions, volatility, calm conditions, and others used to explain the movement of pesticides, it can quickly become […]
Read More… from What’s the Relationship Between Vapour Drift and Inversions?
This article was originally published in the Proceedings of the Soils and Crops Workshop, 2005. Authors Tom Wolf (AAFC), Brian Caldwell (AAFC), Cheryl Cho (CDC), Sabine Banniza (CDC), Yantai Gan (AAFC) Background: Fungicide application is an important disease management strategy for ascochyta blight (caused by Ascochyta rabiei) in chickpea due to the poor host resistance […]
Read More… from Ground vs Aerial Application of Fungicide in Chickpeas
With an ever growing selection of options for nozzles and streamer bars, many growers are asking the question, what should I outfit my sprayer with for winter wheat liquid fertilizer applications? Well, it depends on what are you trying to accomplish. If the goal is to push your winter wheat management and improve yields, then […]
Read More… from Nitrogen Application Technology in Winter Wheat