Canola Quiz – Nitrogen top-up
Five questions on in-crop nitrogen top dressing – with a “Right Source at the Right Rate, Right Time and Right Place” theme.
In This Issue
Now is the time for counting canola
When it comes to scouting for plant establishment, sometimes later is better. Scouting at the two- to four-leaf stage can give you a better idea of actual establishment if emergence is slow/variable or the field experiences early season plant loss. This is where CanolaCounts.ca can come in handy. It’s a mobile-ready tool designed to help producers understand plant densities and emergence across their fields and see how they compare to regional norms. Plant establishment assessments will identify seeding deficiencies and formulate solutions to those problems going forward. Check out the above video and this article for some how-tos on scouting for plant establishment.
Before you spray, read these
This is the time of year when canola growers may be considering their second (or possibly first) in-crop herbicide application. However, timing is everything: herbicides vary in effectiveness depending on the crop growth stage, as shown by these research results. This article lists several popular herbicides registered for canola and the crop growth stages their labels recommend for peak performance. Canola producers across the Prairies are also spraying in a wide gamut of conditions. This article offers key tips for spraying in hot conditions (28C and above), cold conditions and everything in between. Finally, follow the label when spraying — it’s important for both agronomic and market access reasons. Visit Keep it Clean for more information.
Spray and clean, rinse and repeat
Canola producers who do not clean out their sprayers — including the tank, plumbing and nozzles with the recommended product procedures — are taking a big risk because they’re likely leaving potentially harmful herbicide residue in the sprayer. For example, pre-seed burnoffs ahead of cereal crops may include Group 2, Group 4 and Group 14 products that can damage your canola. Even worse, if wind or rain delays spraying, the concentration of accumulated herbicide residue in the tank, plumbing and boom ends can continue to increase. Check herbicide labels to make sure of the cleaning solutions required; in many cases it may require ammonia and water but you may need to use a detergent in some circumstances. This article includes sprayer clean-out tips that can help you avoid a wreck.
Flea beetles: the fight continues
Although some regions of the Prairies are winning the battle against the notorious flea beetle, there are still a lot of “hot spots” — often literal — where the pest continues to flourish and wreak havoc on vulnerable canola crops. Depending on your scouting results, it may be time for an insecticide application. This article focuses on applying insecticides and herbicides in hot weather. Flea beetle tips and info (scroll down) features several links to resources that can help you build on your flea beetle management strategy. Checking plant establishment for CanolaCounts.ca also offers producers the opportunity to reassess flea beetle damage at the same time. Check out the research behind the recommendations here.
Diamondback moth larvae
Plant stand uniformity within a field
- How to Scout: Human eye, Canopeo, NDVI imagery
- How to Scout: Human eye, Canopeo, NDVI imagery
Improving sclerotinia risk assessment – The Canola Council is looking for volunteers to beta test a new sclerotinia risk assessment calculator in a few weeks. This tool is being built by CCC and AAFC researchers using an older sclerotinia algorithm that needs updating prior to its full launch in 2022. Beta testers are asked to use the app to assess sclerotinia risk at early flower in a field. They are then asked to rate the amount of sclerotinia in that same field at the end of the season. The data collected from the app and the resulting sclerotinia infection will ensure the new tool will provide good predictive function for canola farmers. If you are interested in participating and improving sclerotinia control for the industry, please email your name and location to [email protected]
Send in your flea beetle damage pics – Justin Pahara, an Agriculture and Agri-Food Canada (AAFC) scientist at Lethbridge, would appreciate flea beetle damage scouting photos to help test their ability to accurately analyze images for defoliation. “With the help of producers, our team at AAFC hope that the wide variety of canola leaf images from different geographic regions with different image backgrounds (tilled soil vs. no-till) in wet and dry conditions, on sunny and cloudy days etc will be a good start to creating an artificial intelligence-based software tool that makes objective crop damage assessments possible and simple,” says Pahara. Please send your flea beetle scouting photos to [email protected] if you can assist in this citizen science effort. When you email photos in, please use the email subject “Canola damage pics.”
Soil health assessment project – Researchers at the University of Saskatchewan are looking for growers to participate in a soil health assessment project. The project, conducted by Kate Congreves and Zelalem Taye, aims to develop a soil health testing protocol and online tool tailored to Saskatchewan’s climate and major soil zones. This summer, they will collect soil samples from volunteer farmer fields across Saskatchewan and record general crop management information for each field. Confidentiality of farmers information is maintained and no reference to specific farms will be made public. Farmers are encouraged to register here to participate in the project. They can also sign up by sending an email to this address: [email protected].
CropTalk – Manitoba Agriculture and Resource Development features a variety of timely webinars related to crop production in its CropTalk series. Find them here.
Canola Watch is a free, unbiased, timely and research focused weekly newsletter from the Canola Council of Canada Crop Production Team
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