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Growers who are using Lorsban or the generics Citadel, Pyrinex and Nufos to control insects are advised to observe the pre-harvest Interval (PHI) for

Canola yield tends to be higher when swathing occurs at 50-60% seed colour change on the main stem — or later if significant shattering

Delaying swathing while you wait for more plants to mature is generally positive for yield, unless soil moisture is inadequate to fill green seeds,

Swath at the best time for the majority of the plants in the field with the least negative impact possible on the rest —

Growers straight combining canola for the first time may want to consider these tips: —Practice on a couple fields. —Choose fields that are well

The higher the oil content of canola, the lower the moisture content required for safe long-term storage. Some research suggests that if canola at

Pre-harvest is a good time to scout for disease severity. Fields with lots of diseased plants may also be poorer candidates for straight cutting

If infection rates are high, determine where most of the yield is. If it’s in the healthy plants, then make harvest decisions based on

Late or mild infections of aster yellows could lead to poor seed set in normal-looking pods. Stress from aster yellows can also sometimes lead

Glyphosate is registered for pre-harvest perennial weed control in canola. Glyphosate is to be applied when the majority of seeds are yellow to brown

As part of the spray decision for late-season insects, scout to determine if numbers are above economic thresholds, but also examine the crop development

In parts of central Alberta, lygus counts continue to exceed thresholds significantly (with counts as high as 450 lygus in 10 sweeps in some