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2022 Ontario Crop Diagnostic Days


The 2020 and 2021 Ontario Virtual Crop Diagnostic Days were a huge success and builds on the long tradition the annual Field Crop Diagnostic Days held at Ridgetown, Elora and Winchester although in a different format. Our success would not have been possible without our participants, sponsors, speakers and all the volunteers involved! A BIG THANKS from all of us!

This year we are pleased to be back in person on July 20th and 21st, 2022 in Ridgetown! With help from our sponsor’s, we will be combining Southwest (Ridgetown), Elora and Eastern Ontario (Winchester) Crop Diagnostic Days into one provincial diagnostic event you will not want to miss!

The 2022 Ontario Diagnostic Days will consist of eight 30-minute sessions (stops) repeated each day.  Each session will consist of a general field crop agronomic theme with various topics which are current and relevant to farmers, crop consultants, retailers basically anyone involved in agriculture! Our goal is to record each session and broadcast them across the province at a later date.

Space is limited (200 per day) and at this time we are not taking door registrations so REGISTER BY JULY 11, 2022 to secure your spot! Please note ALL ACTIVITIES ARE OUTDOORS so come prepared and enjoy.

Registration begins at 8:15 a.m.  The program will start at 9:15 a.m. sharp and conclude at 3:00 p.m.  Refreshments and a complimentary lunch will be provided. All parts of the program will be conducted at the University of Guelph Ridgetown Campus, Ridgetown, Ontario. 


Historically, in-person diagnostic days have provided some of the best opportunities for Certified Crop Advisors (CCA) to acquire a broad range of Continuing Education Units (CEU). Application has been made to offer participants 4 continuing education units in the areas of Pest Management, Crop Management, Nutrient Management and Soil and Water Management, for Certified Crop Advisors. Complete details will be contained in the reference package handed out on the day of the event.


This series is being brought to you by the partnership of the event organizing committees, OSCIA, OMAFRA, and University of Guelph/UGRC.

The organizing committee would like to thank the following sponsors for their support of the 2021 Ontario Diagnostic Days Virtual Series: The Grain Farmers of Ontario, Agris Co-operative, BASF, Bayer/Dekalb, Corteva/Pioneer, Great Lakes Grain, Maizex Seeds, The Mosaic Company, PRIDE Seeds, RealAgriculture, and Syngenta.


  • $125 (plus HST) A receipt/confirmation email will be provided.
  • Please make sure your pop-up blockers are off

Registration for the recorded sessions will be available here in the next few weeks. Please continue to check back for updates.

The same program will be offered on two separate days therefore the program will be the same for each day. A receipt/confirmation will be emailed to you following completion of your registration. If you are unable to attend as planned, your registration may be transferred to another individual for this year’s program. Please notify Mary Margaret McDonald or call 226-964-2984 if changes are required. No refunds will be granted.


The Ontario Diagnostic Days goal is not only to educate but ensure the health and safety off all attendees. We are committed to adhering to the University of Guelph Ridgetown COVID-19 as well as Ontario and local public health guidelines. As of July 1, masks are not required for indoor or outdoor activities on campus but are recommended. All participants are encouraged to be fully vaccinated. Hand sanitizer will be provided. As guidelines and recommendations change, updates will be provided.


Ridgetown Campus is located on County Road 17, 6 km south of Hwy. 401 (Exit 109) and 6 km north of Hwy. 3 at Morpeth. We are located on the east side of the town of Ridgetown.

GPS Coordinates: (42.446253, -81.878713)

Registration enquiries         1-866-222-9682
General enquiries                226-964-2984

Program Themes and Schedule 

Check out the 8 in-field sessions each 30 minutes in length.

Topic Title Description Speakers

Cover Crop Compendium 

Setting cover crops up for success after wheat or early harvest crops. A look at species, seeding rates, herbicide and fertility concerns and more.

Anne Verhallen, OMAFRA
Sean Vink, UGRC
Kris McNaughton, UGRC
Herbicide Injury and Crop Sensitivity A look at how 17 different herbicides applied prior to and after crop emergence will affect growth and development in corn, soybeans, white beans and cereals. Participants will assess injury symptoms and determine the impact on crop growth and development.

Mike Cowbrough, OMAFRA

Waterlogging Woes We will "dive" into the effects of waterlogging on crop performance, and "float" various recovery-management strategies. Corn, soybeans and wheat.

Dave Hooker, UGRC

Improving WBC Management Learn the latest on insecticide efficacy, application timing and their residual activity. Also, a look at larval survival in structured versus blended refuge.
Tracey Baute, OMAFRA
Yasmine Farhan, UGRC
Foliar Diseases in Corn Foliar diseases in corn including resistance management and fungicide application.

Albert Tenuta, OMAFRA

Identifying Soybean Seed Quality Problems An in depth look at the seed quality issues soybean growers often face at harvest from disease, insect and environmental factors. Both causes and possible solutions will be addressed.
Horst Bohner, OMAFRA
Owen Wally, Agriculture and Agri-Food Canada
Feel the Burn Diagnosing fertilizer injury and managing fertilizer under strip till.
Ben Rosser, OMAFRA
Colin Elgie, OMAFRA
Cereal Staging and the Importance of Timing Staging of cereal crops and the connection with timing of applications.
Sophie Krolikowski, OMAFRA
Peter Johnson,

A total of 4 CEU credits will be available.

All sessions are being recorded and will be available for online viewing following the live event. CCA's unable to attend in person will be able to register to view the recorded sessions to receive their CEU credits.


Do you have questions about registration or the schedule? EMAIL US

Thank You for your continued support and please be safe!

Albert Tenuta, OMAFRA, SWCDD

Ian McDonald, OMAFRA, ECDD

Sebastian Belliard, OMAFRA, EOCDD


Reviewed 08/11/2022