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Canola is advancing quickly, often emerging in 5 days and starting to sprout its first true leaf in just over a week. Flea beetles are also out in big numbers — enough to warrant a few walks through each field. Seed treatments will provide 3 to 4 weeks of protection for canola that emerges within a week of seeding. Flea…
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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…
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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…
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The week after seeding is a good time to dig up seeds and seedlings to check for rots and blights. Disease damaged seed and seedlings die quickly, and may be gone within a few days, which is why this timing is important to an accurate diagnosis. While scouting for disease, also look for…
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Start counting a week after seeding and repeat a couple of times over the following two weeks. Here's how…
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A moist late spring means more mud clinging to equipment and, because growers are under extra pressure to get the crop seeded, less time available to clean equipment between fields. This greatly increases the risk of clubroot spreading from field to field. The following photos show high risk scenarios for clubroot spread…
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Avoid top dress mess. Top dressing N might get the crop seeded faster, but check timing and technique. Good weed management and top dress fertilizer don’t always mix. Quack attack. Quack grass and dandelions are two early weeds that can have a big impact on yield potential. Contain them. Crop insurance cut off. Canola seeded in early June still has…
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This map shows the difference in Normalized Difference Vegetation Index (NDVI) at 1-kilometer resolution as of May 19 to 25, 2014 compared to the same period in 2013. Yellow areas are similar to last year, light brown areas are slightly behind…
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The questions for this week: 1. Flea beetles have been feeding on these cotyledons. What percentage of these leaves are considered defoliated? 2. Cutworm damage tends to be in patches. But lots of damage can occur in patches, including herbicide carryover, seedling diseases, so scouting is essential. What is the best way to scout for cutworms? 3. Why is this…
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