Early weed control is preferred because nutrient and moisture taken up by weeds means less for the crop. Weeds emerging before the crop also compete for sunlight, which is an issue if those weeds canopy over the crop. Ideally, growers want crop emerging in a clean field so it can get ahead of the weed competition. That is why pre-seed…
Pre-seed burnoff
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Growers will be eager to seed with the return of warm weather but early weed control also remains a priority — especially for fields that have not received any yet. Spraying those fields now and seeding three days later will have an economic benefit given that weed competition remains a major factor in crop yield potential…
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Products approved for use ahead of canola are: –glyphosate –bromoxynil in a tank mix with glyphosate –Aim (carfentrazone) in a tank mix with glyphosate –CleanStart (carfentrazone and glyphosate) –clomazone in a tank mix with glyphosate –Conquer (bromoxynil and carfentrazone) in a tank mix with glyphosate…
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If perennials, winter annuals and early emerging weeds — like this stinkweed — are growing, there is no benefit to waiting for later emerging weeds such as lamb’s quarters or redroot pigweed to show up. Weeds present now will have a greater impact on yield than weeds that emerge with or after the crop…
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With an early spring in some parts of the Prairies, growers and agronomists have been asked "When is too early to spray weeds?" Spraying can start under the following conditions…
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Weeds will be going strong with the sun, especially if they have established roots that reach moisture while newly seeded crop battles dry topsoil conditions. A second pre-seed burnoff may be in order or — if emergence is likely to be slow — the post-seeding pre-emergence window may be a little wider than usual. Either way, early weed control remains…