June 25, 2014
If weeds and crop are advancing toward the end of the application window and the ground is too soft and wet to support a sprayer, then aerial spraying may be the best economic response. Here are the options for aerial herbicide application in canola…
June 18, 2014
The longer a herbicide sits in a sprayer, the greater the risk that it is going to hang up in the tank. Sprayers should be cleaned at the end of every work day regardless if the same product or tank mix is being sprayed the following day…
June 18, 2014
Early mornings and evenings when conditions can be the best for spraying can also be the worst because of possible air temperature inversions. Air temperature inversions — when air temperatures actually increase as you get higher above the ground — create ideal conditions for tiny spray droplets to become suspended in the air and drift considerable distance from their target…
June 11, 2014
How do you spray weeds in a timely fashion when every day seems too windy? Too windy, according to the Guide to Crop Protection, is wind above 15 km/h. But we know that some operators will go with winds of 20 km/h and maybe a bit above. Here are tips to improve performance and limit the drift risk in wind…
June 11, 2014
Applications made when cool cloudy days follow cool nights will result in lower or slower herbicide efficacy than applications made in warm sunny days. Cloudy days don’t provide the photosynthetic activity required for many herbicides, including Group 10 glufosinate…
June 4, 2014
Weeds are coming up strong. As part of the Canola Council of Canada’s Keep It Clean campaign, we remind growers to use only registered pesticides when required. Refer to product labels for proper use instructions. Here are strategies to improve weed control results for each HT system: —Liberty LInk: As a contact herbicide, Liberty is recommended to be applied as…
June 4, 2014
Canada’s Pest Management Regulatory Agency (PMRA) permits “unlabelled” tank mixes as long as products in the mix are used under the following conditions: 1. Each tank mix partner is registered for use in Canada on the crop of interest. Note that just because products have similar actives or are generics does not mean that they are registered for use on…
May 22, 2014
Growers face many weed, insect and disease management decisions throughout a growing season. In many cases, these applications provide a clear return on investment. In other cases, they do not. Here are a few examples where applications have a very low chance of providing a return…
June 26, 2013
We’ve had reports this week of growers causing unexpected damage to canola because the sprayer was not cleaned properly. The ideal tank cleaner has a detergent, a surfactant and a component to increase pH (i.e. ammonia) in one formulation. The detergent will cut any oils or fats found in current adjuvants, the pH increaser solubilizes the Group 2 herbicides and…
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