Return to Canola Council Home
As a rough estimate, the 20% flower or "bloom" stage is when the main stem has around 15 “flowers”. Canola can reach 20% bloom in 4-5 days after first flower…
How to count 10% to 50% flower
June 28, 2017
Sclerotinia stem rot
-
-
Sclerotinia stem rot: Risk factors and spray timing
June 22, 2017
Prevalence of sclerotinia stem rot has a direct correlation to above-average moisture. If a field has regular rains or high humidity or both from two weeks before flowering and through flowering, then infection will likely occur. If growers decide to spray, the window for most products is 20-50% flower. Earlier is usually better as early infection on the main stem…
-
Pest survey results for 2016
December 9, 2016
Results from the disease survey show increases in sclerotinia stem rot incidence. Blackleg incidence is down from 2015 in Manitoba and Saskatchewan and up in Alberta…
-
Lesion ID
July 20, 2016
Learn to tell the difference between common lesion-causing diseases — blackleg, sclerotinia stem rot and alternaria black spot…
-
Sclerotinia: Late or second applications
July 13, 2016
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…
-
Sclerotinia: Factors that increase and reduce risk
July 6, 2016
Factors that increase the sclerotinia risk, factors that reduce the risk, and situations where a second application may be warranted…
-
Sclerotinia management: Common questions
July 6, 2016
Here are a few questions we often get on sclerotinia stem rot management. Answers and links may help with your management decisions…
-
Sclerotinia: Risk factors and spray timing
June 30, 2016
If a field has regular rains or high humidity or both from two weeks before flowering and through flowering, then infection will likely occur…
-
Sclerotinia stem rot risk: The basics
June 23, 2016
Earliest canola fields are coming into flower, and many areas of the Prairies have more than enough moisture to elevate the sclerotinia stem rot risk. Here are key risk reminders……