Canola Watch – July 20, 2016

July 20, 2016

JULY 20 QUIZ — WHAT’S IN YOUR SWEEP NET?

Beneficial Insect_ 4 Ladybug larvae Lygus and Diamond Back Moth_Olds_Aug10 2015_Keith Gabert

You may find quite menagerie of insects in your net after 10 sweeps. Can you correctly identify these five?

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LESION ID

Learn to tell the difference between common lesion-causing diseases — blackleg, sclerotinia stem rot and alternaria black spot.

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LYGUS BUGS: ID, SCOUTING TIPS AND THRESHOLDS

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LYGUS: 3 MAIN SPECIES

At least 3 lygus species feed on canola in Canada, but you don’t really need to ID them. Count them all…and their big nymphs, too! READ MORE

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APHIDS: THEY CLUSTER LIKE CRAZY BUT IS SPRAYING ECONOMICAL?

Hundreds of aphids on one canola plant look like a budding disaster, but they rarely affect more than a few plants.

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ASTER YELLOWS OR SWEDE MIDGE OR THRIPS?

Aster yellows tends to be the leading cause of funny bladder-shaped pods.

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7 CAUSES FOR MISSING PODS

As canola starts to move from flowering and into pod formation, growers will often notice blanks up the raceme where pods did not form. Here are 7 possible reasons: Heat. Hot days (28-30°C and up) and warm nights (16°C and up) from bud to mid-flowering stages can have a significant effect on canola yield. Cool […]

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HAIL ON PODDING CANOLA

hail damage

With severe hail after flowering, plants can start to regrow, going through flowering stages again. This really sets back maturity, but with enough time, new branches can produce enough yield to make harvesting worthwhile. The question is, is this a crop worth much more investment?

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HARVEST LOOMS SO NOTE PRODUCT PHIS

helps growers and agronomists find a fungicide, insecticide or pre-harvest herbicide that fits the timeframe available.

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BIN CLEAN OUT: MALATHION REMINDER

Malathion CANNOT be used to treat bins where canola will be stored or to treat canola as it goes into storage. These applications can result in residues in the canola that are unacceptable in some of Canada’s key export countries with low minimum residue limits (MRLs) or zero tolerance for malathion.

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SCLEROTINIA: LATE OR SECOND APPLICATIONS

Fungicide applied late in the window can provide valuable protection from sclerotinia stem rot if flowering is extended or if conditions become more conducive to disease.

Heavy rains can increase the sclerotinia stem rot risk but they also make fields too wet for ground sprayers. This can delay timely applications, especially because demand for aerial applicators can make for long wait times. Here are scenarios that may help you work through this situation….

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ATTEND A CROP TOUR: COMING EVENTS

CCC agronomy specialists are speaking at tours and events this week and next. They’re good smart people. You’ll like them

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Upcoming Events

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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