June 12, 2013
Applications made when cool cloudy days follow cool nights will result in lower 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. And nights near freezing followed by days with highs that barely reach 10 C will not provide high metabolic activity required for best…
June 5, 2013
When spraying for weeds it may be economical to add an insecticide or fungicide to the tank mix to hit any insects or disease (blackleg) that may be present at the same time. However, consider these four issues before proceeding: 1. Is the tank mix supported by the product manufacturers? (See the next article for more on this.) 2. Be…
June 5, 2013
Growers must take extra precaution with any tank mix that is not identified and approved on the product label. The risks with off-label tank mixes include but are not limited to: —Damage to the crop —Antagonism or other reduction in control of one or more of the labelled pests —Residues in excess of the limits of those set for the…
May 29, 2013
Applications made when cool cloudy days follow cool nights will result in lower 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. And nights near freezing followed by days with highs that barely reach 10 C will not provide high metabolic activity required for best…
May 15, 2013
Always refer to pesticide labels for mixing instructions that may be specific to each product. Here are some general rules for mixing pesticides, taken from the Manitoba Guide to Crop Protection…
June 13, 2012
Canola can be damaged by trace herbicide residues left in a sprayer tank. This article underlines the importance of a complete clean out between products, and an understanding of what risks each product and each tank mix presents in terms of scrubbing effect and what may happen to a product or products if left in the tank for an extended…
May 2, 2011
Glyphosate works best when applied during daylight hours, and when temperatures are warm and humidity high. Read on for more weather and water tips to improve glyphosate performance…
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