Category: Mixing

All hort articles about water quality, agitation, tank mixing and adjuvants.

Evaluating an Anti-Drift Adjuvant in an Airblast Sprayer

Posted on by Jason Deveau (Spray_Guy)

Most pesticides are either pre-formulated with the required adjuvants, or the label specifies their addition. However, compelling claims by manufacturers create interest in tank mixing additional adjuvants to improve some aspect of pesticide performance. In a previous article we advised caution when using adjuvants in airblast sprayers (see here). Specifically, we stated that unless an adjuvant has been tested with airblast equipment, […]

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Operator Safety: How to Avoid Pesticide Hazards

Pesticide Warning Symbols
Posted on by Katelyn Duncan

A Veteran Applicator’s Questions about Pesticide Handling Time and again, after years of working with dozens of different chemicals, I would wonder to myself “How dangerous is this chemical?”, “Is glyphosate as safe as they say it is?”, “How do I find out what type of safety gear I need while handling this chemical?” Beyond the agrichemical […]

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Biopesticides: Holy Grail or Giant Pain?

25 million nematodes.
Posted on by Dustin Morton

Biopesticides are a rapidly growing segment in horticultural pest control. While they are often billed as green “miracle cures”, applicators should be aware that they require unique considerations. Issues with lifespan, target specificity, and application technology can all impact their efficacy. However, like any pesticide application, careful planning can minimize wasted time and money. Typically […]

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Circulating Spray Mix Through a Tank-Rinse Nozzle Maintains Nematode Concentration

(A) Tank-rinse assembly mounted through tank lid with a flow-regulating valve. (B) Close up of tank-rinse nozzle.
Posted on by Jason Deveau (Spray_Guy)

This article was co-written with Jennifer Llewellyn, OMAFRA Nursery Crop Specialist Many horticultural commodities, such as turfgrass and nursery crops, include the application of live nematodes as part of their annual IPM program. In 2013 we performed preliminary research into the claim that a grower’s nematode applications were becoming less effective. In the course of […]

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Off-Label Spraying: A Lose-Lose Situation

Posted on by Dustin Morton

Submitted while Dustin was the Commercial Horticulture Specialist with Alberta Agriculture and Forestry. Horticultural chemicals and pesticides often have the dubious distinction of being more expensive than their field crop cousins. In order to reduce costs, growers may sometimes buy and use chemicals which have the same active ingredient, but are not registered for the […]

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