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Spraying has been required in pockets all across the Prairies, particularly for redbacked cutworms in the Peace region, central Alberta around Vermilion and Vegreville, and west central Saskatchewan. Flea beetles have been sprayed on early-seeded and slow developing canola. And the Peace region has grasshoppers eating fields already…
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Step one with a thin stand is to determine the cause so it can be prevented next year. Step two is to scout closely and take extra care to protect those few plants from insect damage and weed competition…
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With cool temperatures, flea beetles have moved down to the stems and undersides of leaves to feed. Thresholds for stem feeding are lower than thresholds for leaf feeding, so make sure to scout the whole plant. A plant cut off represents 100% leaf area loss for that plant…
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Small and vulnerable canola plants face many threats during their first three weeks. The crop may need your protection to get through these stages with its top-end yield potential intact. Canola growers are encouraged to walk their fields a couple times a week — or more — until plants are firmly established and growing strong…
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Canola is most fragile during the first 21 days after emergence. The small plants are highly susceptible to flea beetles, cutworms, seedling diseases, weed competition and various other threats. Scouting may be required every day for at-risk crops, especially if a threat such as flea beetles seems to be building. At a minimum get out to each field a couple…
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Take a few extra minutes each day to scout emerged crop for insect damage. It could be a busy spring for flea beetles, and cutworm damage is already reported in parts of Alberta…
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Canola growers should scout emerged canola crops for bare patches, holes or notches in foliage, and clipped plants — telltale signs of cutworm feeding. At least four cutworm specifies damage canola: dingy, redbacked, pale western and army. Here is information on identification, scouting, acceptable damage thresholds, and control…
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It could be a heavy year for flea beetle feeding, especially since a lot of canola will emerge right at peak activity for the insect. High winds may force flea beetles off leaf tops and down to leaf undersides and leaf stems. This could actually make the situation worse, since it takes just a few bites on a stem to…
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Cutworms are showing up in big numbers in some fields across the Prairies, particularly in northeastern Alberta. Check emerged canola crops for bare patches, holes or notches in foliage, and clipped plants — telltale signs of cutworm feeding. At least four cutworm specifies may damage canola: pale western, redbacked, army and dingy. It helps to know which ones are doing…
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