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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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You can often tell the condition of a crop the day after a frost. It may have survived without any damage, in which case you may not have to worry. Or, if most of the plants are black and bent over, it may be clear that serious losses have occurred. But does that mean the field should be reseeded? The…
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If wild oats are the one problem weed in a Liberty Link canola field, one option is to apply a grassy weed product (Centurion or Select) alone while waiting for emergence of other weeds prior to the Liberty application. But walk the field and take a close look at the weed spectrum before making this decision to ensure that delaying…
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In cool cloudy conditions, weed growth is slower and herbicide efficacy may be lower. Cool humid conditions are also prime conditions for herbicide injury to the crop. The leaf cuticle (waxy layer) is thinner allowing more rapid uptake of herbicide into the plant and cool conditions reduce the speed at which the herbicide is inactivated in the crop. This can…
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With fields too wet to seed, growers in Manitoba and parts of Saskatchewan may be tempted to leave volunteer canola and harvest it as a crop. There are many reasons to avoid this, and very poor yield potential is just one of them…
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After broadcast seeding, including seeding by plane or helicopter, fields must be harrowed to loosen the soil surface and provide seed to soil contact. Canola seed is very light and does not embed into the soil, even if dropped from an airplane at high speed…
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Sulphur deficiency can show up as early as the 4-5 leaf stage in fields that are highly deficient. A top up with ammonium sulphate may be required in fields that have not received regular sulphur applications…
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Frost hit many areas of the Prairies again on the weekend. Some areas in central Alberta reported -8 C. This followed a frosts on a couple nights last week. Wait 3-4 days to see if the crop recovered before making a reseeding decision, and wait to make sure weeds are actively growing before spraying…
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Frost hit many areas of the Prairies on repeated nights over the past week. Emerged crop is at risk, especially delicate cotyledons. Wait 3 or 4 days, then look for……
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