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What percentage of this leaf has been eaten?…
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A few flea beetles do not warrant an insecticide application. Follow these guidelines when making a flea beetle spray decision:…
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Fertilizer dribble options for the sprayer: 1. Streambars or dribble bars are long bars — 12” to 15” or so each — with 4 holes along the length. They attach to each sprayer nozzle point, with the bar designed to reduce the distance between streams. Advantage: Streams drop straight down so spray patterns are unaffected by boom height. Disadvantages: They…
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You may have observed canola with a yellow halo around the outside edge of cotyledons. If this happens when growing conditions are optimal and there hasn’t been frost, seed treatment is the likely cause. When the plant is growing very fast, translocation of seed treatment into the plant is also very fast. This can result in an occasional yellowing of…
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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…
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Many factors can cause a thin canola stand. Proper diagnosis is important for effective management. Here are common factors, with diagnosis tips for each. Use our new Canola Diagnostic Tool on your smart phone or tablet for help in the field. Watch the video at the top of this article for a tutorial on how to use the tool…
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The latest entry for the Manitoba site has photos showing the differences in seed depth for 3 mph vs 5 mph (shown) seeding speed. Manitoba has planned a blackleg scouting clinic at the UCC site June 7. Eight sites are seeded in Alberta, and establishment is generally good. In Saskatchewan, the Indian Head site is seeded and we're waiting on…
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Seeding progressed rapidly in the past week across most of the Prairies. Excess dry conditions in some areas have growers wondering whether to seed deeper to reach moisture, and excess rain in others has growers wondering how long seed and seedlings can survive in waterlogged conditions. Flea beetles are present in some fields. Canola can tolerate 25% to 50% defoliation…
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What is this insect, and why is it important?…