June 29, 2011
Canada’s crop protection rules allow growers to tank mix two products as long as they are both registered for the crop in question and at the timing and rates used. But these rules do not ensure these products can be mixed without problems in the tank (they may create a gummy mixture that ruins the sprayer) or without antagonizing each…
June 27, 2011
Insecticide to stop lygus bugs from feeding on canola at the bud stage is rarely effective or economical. Under good growing conditions, canola can grow through this early damage without any yield loss. Instead of spraying, step up monitoring and proper sweep net sampling and be ready to take action at the pod stage if necessary…
June 22, 2011
Flea beetle spraying continues in Manitoba where crops are advancing slowly due to excess rain and limited warmth. Redbacked cutworms are still causing severe damage in southern Alberta. Some sprayed fields need to be reseeded…
June 17, 2011
Cleaning out the sprayer protects a sensitive crop, it protects people working with the sprayer, and it protects the sprayer and its components. The following article by AAFC's Tom Wolf provides some handy tips…
June 15, 2011
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…
June 15, 2011
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…
June 8, 2011
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…
June 8, 2011
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…
June 1, 2011
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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