Canola Watch – August 24, 2016

August 24, 2016

QUIZ? NOT REALLY. MORE LIKE A MYSTERY.

Mystery1_2_600

Here are two sets of symptoms Canola Council of Canada agronomy specialists saw this week. We have hypotheses as to the causes, but these plants have been sent off to the lab for confirmation. In the meantime, we’re asking for your diagnoses.

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SWATH TIMING FOR HIGHER YIELD

Seeds with just a touch of brown or yellow are considered "colour changed". Credit: Brent Wiebe

Optimal swath timing for canola yield and quality is when at least 60% of seeds on the main stem are showing some colour change. The arrow points to a seed with a touch of colour on the green. This counts as colour changed.

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4 TOOLS TO CHECK HARVEST LOSSES

Setting the combine to put more canola in the tank and leave less on the field is one way to improve canola profits. In preparation to measure harvest losses, have these four little tools at the ready: 1. Drop pan. Buy one or make your own. Whether using a full-width pan that drops from the […]

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TOP 10 SITUATIONS THAT INCREASE STRAIGHT-CUT RISK

Standing canola not harvested in a timely fashion can shell out.

Most canola growers are familiar with straight combining, even if most have not tried it yet. New varieties with pod shatter resistance have helped with the overall comfort level for the practice. This article looks at situations where swathing may still have an advantage over straight combining.

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CUT CANOLA AFTER REQUIRED PRE-HARVEST INTERVAL

The can be used to quickly check pre-harvest intervals for herbicides and desiccants applied pre-harvest as well as insecticides and fungicides applied earlier in the season. Once you’ve selected the product used (or to be used), the ‘Sync your calendar’ tool can calculate your suggested swath date based on your spray date and product. Check it out at

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BERTHA ARMYWORM UPDATE

A few fields were sprayed for bertha armyworm in the past week, but these are fairly isolated cases. In general, the worms have been a low threat to canola this year. But some fields can encounter higher populations while others nearby have few or none.

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INSECTS IN STORED CANOLA

Canola rarely has an issue with storage insects. Primary stored product insects such as rusty grain beetle, red flour beetle and saw-toothed grain beetle can occasionally be found in stored canola if cereal grain or weed seeds are mixed in with the canola. Canola that goes into a clean bin will not usually encounter a problem with stored grain insects.

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REGROWTH IN SWATHED CANOLA

Regrowth in swaths cannot be sprayed. Credit: Justine Cornelsen

Rain and delayed harvest can cause cut canola plants to regrow in some cases, but this regrowth can’t be sprayed.

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WHAT HAPPENS AT CANOLA DISCOVERY FORUM?

Canola Discovery Forum is October 25-27 at the Fairmont Hotel in Winnipeg. The event is designed to identify challenges and opportunities in canola production that will lead to the industry goal of 52 bu./ac. average yields by 2025. Highlights from 2015…

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WORK SAFELY THROUGH HARVEST

—Before moving machinery, perform a walk-around check to ensure no one is near the equipment and warn anyone in the immediate area that the machinery will be moving. Keep bystanders away from high traffic areas in the farmyard. More tips…

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CUTTING LODGED CANOLA

Lodged canola.

There is no clear advantage to swathing versus straight combining lodged crop. It often comes down to personal preference.

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PRE-HARVEST SCOUTING: 8 DISEASES

Sclerotinia stem rot. Credit: Justine Cornelsen

Check patches of pre-mature ripened canola to identify the cause. It could be blackleg, clubroot, sclerotinia stem rot (pictured) or something else entirely. Here’s how to identify the major diseases of canola as fields get close to swathing stage…

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COMING EVENTS

Upcoming canola events and tours…

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Canola Watch is a free, unbiased, timely and research focused weekly newsletter from the Canola Council of Canada Crop Production Team

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