Speaker: Hannah Fraser, Entomologist -Horticulture, Ontario Ministry of Agriculture, Food and Agribusiness (OMAFA)
Author: Cara McCreary
REMINDER: Webinar on Managing Pesticide Resistance in Greenhouses and Nurseries TOMORROW at Noon!


Greenhouse IPM practitioners have to produce high quality plants and produce with a more limited chemical arsenal. We also have to deal with several key pests that are known to readily develop resistance to multiple chemical classes, including thrips, whitefly and leafminers. So how do we avoid an uphill run on the resistance treadmill?
Hannah Fraser, Horticulture Entomologist with OMAFA, shares her decades of experience battling resistance issues in fruit crop pests with us in this next webinar.

Webinar Details:
Who: Hannah Fraser, Horticulture Entomologist for OMAFA (Ontario Ministry of Agriculture, Food and Agribusiness)
Hosted by: Cara McCreary and Sarah Jandricic, Greenhouse IPM Specialists for OMAFA
What: Don’t grow resistant pests that will get in the way of selling quality produce or beautiful plants! This talk will provide growers and IPM specialists with a solid review of resistance management best practices. This will include an in-depth explanation of the “why’s” for what we should (and shouldn’t) be doing when it comes to stewardship of insecticides in the greenhouse IPM toolbox.
When: Wednesday, August 14th from 12-1 pm
How to Watch: Register for the free, live webinar here: https://us06web.zoom.us/webinar/register/WN_QZtye4nzT4y7AiY1iwgRcQ
Call for Posters – 2024 Canadian Greenhouse Conference

The 2024 Canadian Greenhouse Conference is hosting another poster session this year!
This poster session will include regular posters and student competition posters. The goal of the Poster Session is to highlight research on greenhouse floriculture, vegetables, fruit and alternative crops in Canada allowing growers and members of ag-industry to see the excellent work that you do in support of the many commodities they grow. To submit a poster in either session, please complete the application form (see below to download) and return it to Denise Beaton (denise.beaton@ontario.ca) or Cara McCreary (cara.mccreary@ontario.ca).
When: October 9-10, 2024
Where: Niagara Falls Convention Centre, 6815 Stanley Ave., Niagara Falls, ON L2G 3Y9
Application due date: Sunday, September 8, 2024
Poster PDF due date: Wednesday, September 18, 2024
- Please use the Poster Application Form (see below to download) to enter the regular and student competition poster sessions.
- Both traditional research posters and infographics that can convey appropriate details are encouraged.
- The student poster competition prizes are as follows:
1st Prize – $750
2nd Prize – $500
3rd Prize – $350
4th Prize – $150
The student competition will be limited to the first 20 students. These 20 student competitors will receive free registration for both conference days. Any additional posters can be included in the regular session.
You can find more details and competition rules in the Call for Posters and Poster Application Form (see below to download) and view some of the 2023 posters at www.canadiangreenhouseconference.com/attendee-information/research-poster-session.
Please forward this information to other interested participants or you can provide Denise or Cara with their contact information.
Some FAQs:
- Does the Canadian Greenhouse Conference print posters onsite? No. The printing of your poster is your responsibility. Your poster will be displayed at the assigned poster board number, which you will receive before October 9th.
- Can I still enter the poster session if I can’t attend the conference? Yes, as long as your poster is displayed in the conference’s poster session by the assigned time (TBD) on the morning of October 9th.
- Is there an oral presentation component to the poster session? No. The judges score your poster based on the criteria in the “Call for Posters”. The poster session is separate from the Speaker Session Research Updates.
- Do I need to stand beside my poster at a particular time? No. However, the poster session provides a great opportunity to network with conference attendees and answer questions about your research. Busier times through the poster session tend to be before and after speaker sessions, at breaks and lunchtime.
- Is this poster session virtual? No. You are required to display a hard copy of your poster (approximately 120 cm x 90 cm (48” x 36”) in either portrait or landscape orientation) in the poster session by the assigned time. You can provide approval to post your poster PDF on the conference website by filling this out on the poster application form.
- Will I get free registration to the conference if I’m entered into the regular poster session? No. Free registration is only provided to the first 20 students who entered the student poster competition.
CGC 2024 Call for Posters
CGC 2024 Poster Application Form
Biological Control Agents Suppliers
This list does not imply any endorsement or recommendation by the Ontario Ministry of Agriculture, Food and Rural Affairs of the companies listed. Suppliers listed here sell biological control agents approved for use in Canada including beneficial insects, mites and nematodes.
If you would like to nominate a supplier for inclusion on the page or update business information, email: cara.mccreary@ontario.ca.
| Company Name | Address | Contact Information |
| Anatis Bioprotection | 278 rang Saint-André Saint-Jacques-le-Mineur, Québec J0J 1Z0 | Tel: 1-800-305-7714 Email: info@anatisbioprotection.com |
| Applied Bio-Nomics Ltd. | 11074 West Saanich Road Sidney, B.C. V8L 5P5 | Tel: (250) 656-2123 (insectary) (604) 940-0290 (B.C) Fax: (604) 656-3844 Email: bug@islandnet.com |
| Beneficiary Insectary | 9664 Tanqueray Ct. Redding, CA 96003 | Tel: (530) 226-6300, Toll free: 1-800-477-3715 Fax: (530) 226-6310 Email: bi@insectary.com |
| BioBee Biological Solutions Canada INC. | 1402-22 Picton St., London, ON M1K4H2 | Tel: Niagara region – Kelly Smith: (289) 442-5713 kellys@biobee-canada.com Tel: Leamington region – Maria Harms: (519) 816-4678 mariah@biobee-canada.com Tel: Rami Friedman: (519) 933-0648 ramif@biobee.com info@biobee-canada.com |
| Biobest Canada Ltd. | 2020 Mersea Rd. #3 R.R. #4 Leamington, ON N8H 3V7 | Tel: (519) 322-2178 Fax: (519) 322-1271 Toll free fax: 1-888-472-0708 Email: info@biobest.ca |
| Crop Defenders | 5125 North Talbot Road Maidstone, ON N0R 1K0 | Toll Free: 1-866-300-2929 Fax: 1-905-481-4388 Email: info@cropdefenders.com |
| GrowLiv Biologicals | 324 Erie Street N Leamington, ON N8G 3V5 | Tel: (519) 992-8248 Email: info@growliv.com Contact(s): Dr. Ghulam Mustafa & Dr. Abida Nasreen |
| GrowLiv Biologicals | 3665 Concession Road 3 North Amherstburg, ON N9V 2Y9 | Tel: (519) 992-3547 Email: contact@growliv.com |
| Halifax Seed Company | PO Box 8026 Stn A 5860 Kane Street Halifax, N.S. B3K 5L8 | Tel: (902) 454-7456 Fax: (902) 455-5271 Email: info@halifaxseed.ca Contact for beneficials: Caye |
| Koppert Canada Limited | 50 Ironside Crescent #2 Scarborough, ON M1X 1G4 | Tel: (416) 291-0040 Fax: (416) 291-0902 Email: info@koppert.ca |
| Koppert Canada Limited | 34 Seneca Road Leamington, ON N8H5H7 | Tel: (519) 326-2978 Email: info@koppert.ca |
| Koppert Canada Limited | 18860 24 Ave #108, Surrey, BC V3S 9V2 | Tel: (416) 291-0040 ext. 105 Email: info@koppert.ca |
| Natural Insect Control | R.R #2 Stevensville, ON L0S 1S0 | Tel: (905) 382-2904 Fax: (905)382-4418 Email: nic@niagara.com Contact: David & Sandra Mitchell |
| Plant Products Inc. | 50 Hazelton Street Leamington, ON N8H 1B8 | Tel: (519) 326-9037 Toll free: 1-800-387-2449 Fax: (519)326-9290 Email: info@plantproducts.com |
| Plant Products Inc. | 1520 Sandhill Drive Ancaster, ON L9G 4V5 | Tel: (905) 793-7000 Email: ancaster.orders@plantproducts.com |
| Plant Products Inc. | 3370 Boulevard le Corbusier Laval, QC H7L 4S8 | Tel: (450) 682-6110 Email: laval.commande@plantproducts.com |
| Richters Herbs (For home owners) | 357 Hwy 47 Goodwood, ON L0C 1A0 | Tel: (905) 640-6677 Fax: (905) 640-6641 Email: inquiry@richters.com |
| Royal Brinkman Canada | Unit 2 – 32 Airpark Place Guelph, ON N1L 1B2 | Tel: (519) 821-1684 Email: orders@royalbrinkman.com |
| Royal Brinkman Canada | 39 South Talbot Road Cottam (Kingsville), ON N0R 1B0 | Tel: (519) 839-4778 Email: kvorders@royalbrinkman.com |
| TerraLink Horticulture Inc. | 464 Riverside Road Abbotsford, BC V2S 7M1 | Tel: (604) 864-9044 Mobile: (604) 835-0200 Fax: (604) 864-8418 Email: : info@terralink-horticulture.com Contact: Bert Bischoff |
| The Environmental Factor Inc. | 133 Taunton Rd. West, Unit #8 Oshawa, ON L1G 3T3 | Tel: (905) 571-5047 Toll free: 1-888-820-9992 Fax: (905) 571-5824 Email: mail@environmentalfactor.com Contact: Lech Sobun, Sales Manager |
Website Resources
The ONFloriculture.com blog is run by our colleagues, OMAFRA’s greenhouse floriculture specialists, and it has lots of information on greenhouse flower and ornamental production and IPM.

Greenhouse Canada is a free magazine that includes great information about the Canadian greenhouse sector.
https://www.greenhousecanada.com/

The Canadian Greenhouse Conference is an annual conference that includes a tradeshow and speaker sessions about all greenhouse topics.
Register By June 6 For Our LAST Thrips ID Workshop at CGC!

Want to learn more about the different thrips that infest greenhouse crops? Want to be able to confidently identify them to species? Interested in how species affects IPM porgrams? Then sign up for our LAST thrips identification workshop!
Continue reading “Register By June 6 For Our LAST Thrips ID Workshop at CGC!”Grower Day 2024

Brought to you by Greenhouse Canada, Grower Day is a one-day conference and tradeshow for growers of ornamental plants and vegetables. This is a great opportunity to mingle with other growers, industry allies and reputable experts.
When: June 18, 2024
Where: Holiday Inn & Suites Conference Centre, 327 Ontario St., St. Catharines, ON
*EARLY BIRD rate ends May 19th*
Don’t miss out! View the program and register to attend here.
Our Popular Thrips Identification Workshop is Adding Another Date!

Our thrips ID workshop in March in Vineland was a smash hit, and the May 16th date in Leamington ON is already full!
So, we’ve decided to add an extra date to accommodate as many growers, IPM professionals and industry reps as possible.
The new date will be in Leamington on May 17th. And remember, there’s always the workshop at the Canadian Greenhouse Conference as well! Read on for what this workshop entails and how to register.
Continue reading “Our Popular Thrips Identification Workshop is Adding Another Date!”Thrips Identification Workshop for Growers: Coming to an Ontario Town Near YOU!

It’s no secret that recent outbreaks of thrips species other than western flower thrips (WFT) have made producing greenhouse crops in Ontario harder than usual. This includes species such as onion thrips, Thrips parvispinus, and chrysanthemum thrips.
As control measures are different depending on the thrips species you’re dealing with, the very FIRST step in learning how to manage these pests is proper species identification. If you’re interested in having someone in your greenhouse operation learn how to do this (so you don’t have to rely on government specialists), then keep reading!
Continue reading “Thrips Identification Workshop for Growers: Coming to an Ontario Town Near YOU!”Upcoming GrowON Webinar: “A Pain in the Parvi” – Progress on Thrips parvipsinus IPM

Since it was first discovered in Ontario greenhouses in 2022, growers, IPM specialists, consultants, and technical reps have been joining forces to learn everything we can about what works – and what doesn’t – for this pest of tropical ornamentals.
Continue reading “Upcoming GrowON Webinar: “A Pain in the Parvi” – Progress on Thrips parvipsinus IPM”