Canola Watch #14

June 17, 2015

JUNE 17 QUIZ — WHAT IS THIS WE FOUND?

Quiz June 17 2

This is a good week to be out scouting for situations that require immediate management, continued monitoring or detailed note-taking to make amends next year. Drill performance issues are a good example of the third situation. The following photos show damage observed in canola fields in the past week across the Prairies. Can you identify the cause for each?

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NO SIT SHERLOCK!

Magnifying glass Gabert small

Canola plants have been going through a lot of stress, and could be showing multiple symptoms. Good sleuthing means leaving the truck seat, putting on your booties and walking the fields. Getting to the bottom of any mystery takes keen observation (got your magnifying glass?), an open mind (the most obvious answer is not always the right answer) and a touch of skepticism (not everything can be cured with a splash of this and that).

Here are some tools to get you geared up for problem solving:

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INSECT UPDATE: GRASSHOPPER, DIAMONDBACK, LYGUS, CSPW

Grasshoppers. If populations are significant and crop feeding has begun, a spray or bait application around field edges may be enough to reduce the threat. Grasshoppers are easier to manage when they’re small — less than the third instar. Except in cases where there are extremely high populations feeding on crop along the edges, ideal […]

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GET THE MOST OUT OF YOUR HERBICIDE APPLICATION

Weedy canola thistles Nicole Philp

This article has tips and links for information on spraying in windy conditions, when to spray uneven crop, spraying at the right crop stage, sprayer clean out to prevent crop damage, and Keep It Clean tips for new products.

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HOW TO IDENTIFY A SPRAY CONTAMINATION ISSUE

This stunted growth is the result of Group 2 herbicide residue.

Herbicide damage to canola can take many forms. Here are some clues to look for….

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SCOUT FOR NUTRIENT DEFICIENCY

This diagram from IPNI shows where deficiency symptoms are likely to show up on a plant. Nitrogen is mobile so with N shortage, plants will move N to new parts of the plant. Therefore deficiency will show up first in older leaves.

This diagram from IPNI shows where deficiency symptoms are likely to show up on a plant. Nitrogen is mobile, so with an N shortage, plants will move N to new parts of the plant. Therefore deficiency will show up first in older leaves.

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MANAGING CANOLA AFTER A JUNE HAILSTORM

Hail damage. Credit: Beth Trueman

The later hail occurs, the higher the chance of yield loss, given that the plants have less time to recover. Plants with a broken main stem will likely die. Plants at the 6-leaf stage that lose most of the leaf area on the main stem can still live, but these leaves will not regrow. The plant will be delayed, and more of the yield potential — which will be lower than before the hail — will come from side branches.

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SAVE THE DATE: CANOLA DISCOVERY FORUM OCTOBER 27-28

Canola Discovery Forum tracks canola and the science behind it. Growers share their experiences and we build on that knowledge to identify research priorities and inspire collaborative efforts between academia and private sector companies. The goal is to seek strategic opportunities to facilitate risk reduction and advance the growth and profitability of the canola industry.

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COMING EVENTS

canolaPALOOZA — June 23, Lacombe, AB
International Rapeseed Congress – July 5-9, Saskatoon, SK
Crop diagnostic school — July 7-9 and 14-17, Carman, MB
Making the grade — July 28, Olds, AB
Crop diagnostic school — July 28-30, Outlook, SK
Canola Discovery Forum — October 27-28, Canmore, AB

Read more for registration links

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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

Canola Council webinar: What growers should know about trade with China

Please join us this Thursday for a webinar presentation from Jim Everson, Canola Council president, that will provide information to growers on trade with China and address questions and concerns.
Apr 18

canolaPALOOZA

The agronomy event of the summer!
Jun 26
Lacombe, Alberta

Alberta Combine College

Optimize harvest and boost your farm’s profitability!
Jul 10
Lethbridge, Alberta
SRED Tax Credits Alberta Canola
  • Know Your Grade for Canola

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