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Upcoming GrowON Webinar Feb 11th: Managing Mealybugs

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Mealybugs, which have long plagued tropical plants, are now appearing in a wider variety of crops, from chrysanthemums to poinsettia. On Wednesday, February 11th, please join Dr. Raymond Cloyd of Kansas State University , for an hour-long exploration of mealybugs and their management. To attend, please continue reading and click on the registration link in the webinar poster or at the end of the post. Webinar Description Who: Dr. Raymond Cloyd, Professor, Kansas State University What: Mealybugs are a challenge to manage in greenhouse production systems. In this webinar, Dr. Raymond Cloyd (Kansas State University) will discuss the biology, behavior, and feeding damage affiliated with mealybugs. He will then address plant protection/pest management strategies, including cultural, physical, insecticidal, and biological that greenhouse producers can implement to keep mealybug populations below plant damaging levels. When: Wednesday, February 11th, 12-1pm EST (11-12 CST) ...
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Information on Health Canada’s Pesticide Compliance Program: What You Need to Know

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Heath Canada’s Pesticide Compliance Program (PCP) is responsible for promoting safe use of chemicals , as well as monitoring and enforcement, to make sure registered fungicides, insecticides and other agricultural chemicals are used according with their legal label. As several greenhouses (both vegetable and ornamental) have undergone random inspections in 2025, it’s good to be aware of this federal program, and what an inspection could look like . Program Background: PCP operates under the Regulatory Operations and Enforcement Branch, Health Canada’s dedicated compliance and enforcement branch . It coordinates and delivers its activities nationally with inspectors across Canada (and is therefore a federal, not provincial, program). PCP ensures all regulated parties act in accordance with the Pest Control Products Act , including manufacturers, importers, retailer and end-users. Image from http://croplife.ca/protecting-people-planet in 2018. The Pesticide Compliance Program...
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REMINDER: GrowON Webinar TOMORROW – Thriving in Containers: Key Factors Affecting Plant Health in Ornamentals

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In this hour long session, Ryan Munroe of NVK Nurseries will share practical tips for monitoring plant health and explain how media properties can influence irrigation, pH, and rooting . Continue reading to register with the link below and join us from 1:00 – 2:15pm on January 21st for this virtual session. Description: Who: Ryan Munroe , Horticultural Advisor, Plant Health Team Lead at NVK Nurseries. What: In this webinar we will learn some of the key considerations that go into commercially producing healthy and beautiful container grown ornamentals. Our speaker, Ryan Munroe, will discuss the plant health monitoring practices he implements in his own work at NVK nurseries. Ryan will also delve into various growing media properties and how they can impact and potentially change plant irrigation needs, pH and rooting. When: Wednesday, January 21st, 1:00-2:15pm Where: Zoom – please register for the webinar here or by clicking on the flyer above. Any questions regarding ...
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GrowON Webinar Jan. 21st @ 1pm – Thriving in Containers: Key Factors Affecting Plant Health in Ornamentals

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With the holidays behind us, it’s time to shift gears and focus on spring – the busiest season for most ornamental growers. Success starts with healthy plants and growing media that works for you. Join us for an upcoming webinar where Ryan Munroe of NVK Nurseries will share practical tips for monitoring plant health and explain how media properties can influence irrigation, pH, and rooting . Whether you’re fine-tuning your production practices or planning for spring crops, this session offers insights you won’t want to miss! Register with the link below and join us from 1:00 – 2:15pm on January 21st for this virtual session. Description: Who: Ryan Munroe , Horticultural Advisor, Plant Health Team Lead at NVK Nurseries. What: In this webinar we will learn some of the key considerations that go into commercially producing healthy and beautiful container grown ornamentals. Our speaker, Ryan Munroe, will discuss the plant health monitoring practices he implements in his own work ...
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DLI Data – December, 2025

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Welcome to the Vineland DLI report for December, 2025! In December, Vineland received 33% less light than in November, 2025. Read on for the detailed data report and more information about our DLI data collection project. Only looking for certain information? Use the table of contents to navigate between sections: DLI Data for December, 2025 Project Background Purpose Materials and Methods DLI and PPFD data Excel sheets Tell us what YOU want DLI Data for December, 2025 Figure 1: Monthly DLI data for Vineland is presented in 2 two graphs. Graph A) represents the average monthly DLI ± standard deviation. Graph B) represents the median monthly DLI and variability in the data using two ranges: the interquartile range (middle 50%) and the outer range (80% of data). A) B) Table 1: Monthly DLI data for Vineland Month and Year (number of days of data) Average ± standard deviation (mol/m 2 /day) Median (mol/m 2 /day) December, 2025 (30 days) 8 (±4) 7 ...
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Not Familiar with AFE’s Grow Pro Webinar Series? You Really Should Be!

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While chatting with various growers and IPM technical reps this year, I realized some in Ontario aren’t familiar with the American Floral Endowment’s (AFE) Grow Pro Webinar Series . This is an excellent series that shares floriculture research funded by AFE, as well as other topics. Previous webinars have focused on things like thrips and botrytis control, biostimulants, growing in reduced-peat substrates , and more. A webinar I’ll recommend for January is one on oomycete pathogens, like Pythium and Phytophthora: Ruh Roh, Root Rot! Managing Oomycete Pathogens in Floriculture Production Speaker:  Dr. Johanna Del Castillo, UC Davis Tuesday, January 20th at 1PM EST Oomycete pathogens remain a persistent threat in floriculture production, causing significant losses when conditions tip in their favor. In this webinar, Dr. Del Castillo will dive into the biology of  Pythium  and  Phytophthora , how to diagnose root rot issues, and the most effective manage...
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REMINDER: GrowON Webinar TOMORROW on Nematode Application and Efficacy!

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On Wednesday, December 17th, please join Greg Bryant , Technical Lead at Beneficial Insectary, for an hour-long exploration of what nematodes can do, if you treat them right. To attend, please continue reading and click on the registration link in the webinar poster or at the end of the post. Description: Who: Greg Bryant, Technical Lead at Beneficial Insectary What: Nematodes can be a valuable component for many Integrated Pest Management (IPM) programs, but proper utilization is critical for success. This presentation will provide guidance on proper quality control practices and application techniques, along with how to avoid common mistakes that can lead to poor results. Note, this presentation was given live at the Canadian Greenhouse Conference in October 2025. This webinar is hoping to reach those that weren’t able to attend in person . When: Wednesday, December 17th, 12-1pm Where: on Zoom. Please register for this Webinar by using this link: https://us06web.z...
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