CONTENTS THE BUSINESS MAGAZINE FOR COMMERCIAL GROWERS APRIL 2024 | VOLUME 34, NUMBER 4 6 On the Cover Vineland Research and Innovation Centre is using biochemistry to get a comprehensive look at plant health and traits. Learn more on page 20. Photo courtesy of 26 12 FEATURES 6 Plant Health Investing in your plant health The hardiness of your plants is good for your bottom line By Mark Freeman, Michael Brownbridge and Julie Graesch 10 Pest Management Rotating chemical treatments Fight pathogen resistance by understanding the chemistry of your pest management plan By Hannah Rouillard 12 Growing Media Hand-in-hand Hydroponic growing media influences how plant health is managed By Heather Machovina 20 Plant Nutrition What if plants could talk? Chemistry is the language of plants and metabolomics is teaching us that language By Christine Kempthorne and David Liscombe COLUMNS 28 24 Perspectives Frost protection using irrigation By Zach Brown 26 Culture Report Cultivating the beauty of Viola 'Silver Gem' By Arden Pontasch Miss our March issue? 28 Dr. Bugs Resulting resistance By Raymond A. Cloyd It's now available to view on gpnmag.com GREENHOUSE PRODUCT NEWS 3 DEPARTMENTS 4 Editor's Report 30 Product Marketplace 33 Industry News/Events 34 Classifieds/Ad Index Vineland Research and Innovation Centre.http://www.gpnmag.com