Canola Watch – August 31, 2016

August 31, 2016

REDUCE COSTLY HARVEST LOSSES — TIPS

Canola producers can lose up to five bushels or more per acre if the combine isn’t adjusted properly. Here are tips to measure combine losses and make adjustment to limit those losses, putting more canola in the bin and reducing the volunteer canola seedbank in your fields.

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SWATH TIMING ADJUSTMENT FOR HAIL, LODGING, DISEASE, UNEVEN STANDS

swathing_canola_ClintJurke600

Optimal swath timing for canola yield and quality is when at least 60% of seeds on the main stem are showing some colour change. Should growers adjust this approach in situations that make the decision more difficult? The following many help with those decisions….

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DISEASE LOAD LOWERS YIELD EXPECTATIONS

Clipped cross section shows blackleg at the base of the stem. Credit: Clint Jurke

After a moist spring and summer in many areas, disease levels in harvest canola could be high this year — even for fields that received a fungicide.

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YIELD DAMAGING CLUBROOT IN CR VARIETIES

clubroot

Close to 20 clubroot pathotypes have been identified in Alberta, and clubroot-resistant (CR) varieties will not protect against all of them. CR varieties with the same source of resistance grown in a short rotation will quickly select for those pathotypes that are virulent to those varieties. With good moisture for clubroot this year, many fields of CR canola are showing high levels of clubroot infection.

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YOUR CHANCE TO HELP SET CANOLA RESEARCH PRIORITIES

Canola Discovery Forum is your chance to work along with growers, researchers and other canola industry stakeholders to identify research shortcomings and set research priorities for Western Canada. Space is limited to 150. Join the discussion in Winnipeg October 25-27.

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WEED MANAGEMENT BEFORE AND AFTER HARVEST

Pre-harvest weeds and green crop. Credit: Ian Epp

Pre-harvest is a good time to dry down weeds to make straight combining go more smoothly. A pre-harvest application can also provide some weed control on late growing weeds — but is often too late to stop seed production.

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PRE-HARVEST HERBICIDE TIMING FOR STRAIGHT COMBINING

Glyphosate: Apply when the majority of seeds are yellow to brown in colour and “average” seed moisture had dried down to less than 30%.
Heat plus glyphosate: Apply at 60-75% seed colour change.
Reglone: Apply at 80-90% seed colour change.

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STORAGE RISKS: HOT, GREEN, WEEDS, DOCKAGE

Heated canola, the brown burned seeds, mean an immediate downgrade.

Know the quality and condition of the canola going in the bin. Moisture isn’t the only factor that can increase storage risk. Green seeds, weed seeds and dockage increase the risk. Even high quality canola can be at risk if stored hot.

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FREE ASSESSMENT OF OIL, PROTEIN AND CHLOROPHYLL IN YOUR CANOLA

Get oil, protein and chlorophyll content, a dockage assessment and an unofficial grade of your canola simply in exchange for submitting your canola sample to the Canadian Grain Commission’s .

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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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Upcoming Events

2019 Powering Your Profits Tour

A day of canola agronomy, marketing management and more!
Nov 19 - Nov 28
12 locations across Alberta,

Peace Region Clubroot Response Workshop

The science, the agronomy, and the farmer experience of clubroot.
Jan 8
Grande Prairie, Alberta

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