Brian Whipker, PhD., Cannabis Insights: Diagnosing Nutrient Disorders

October 2023

Brian Whipker has been a Professor at NC State University for over 30 years specializing in plant nutrition, plant growth regulators, and disorder diagnostics. He has published >120 scientific papers and >300 grower articles during his career. He co-created an online grower resource fertdirtandsquirt.com which focuses on nutrient monitoring and nutrient standards. He also co-authored the book Nutrient Deficiencies in Bedding Plants: A Pictorial Guide for Identification and Correction. The culmination of his plant growth regulator research is emphasized in the Plant Growth Regulator Guide for Annuals published by Fine America/GrowerTalks. His current focus is to provide scientifically-based grower information about plant leaf tissue analysis standards and plant nutrition.

Learn more by registering for our webinar at the link below.

Previous Webinars

Igor Grant, M.D. and Thomas Marcotte, Ph.D.

Thursday, February 12th at 1:00 PM MST

The UC San Diego Center for Medicinal Cannabis Research: Some Findings

Igor Grant, MD is Distinguished Professor, and Director of the Center for Medicinal Cannabis Research (CMCR) at the University of California San Diego (UCSD). Established in 2000, the CMCR has been at the forefront of advancing science and policy […]

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Almut Winterstein, PhD.

Jan 8, 2026 01:00 PM Mountain Time

Clinical research priorities gleaned real-world use patterns: the MEdical Marijuana Outcomes Research repositorY (MEMORY)

Almut Winterstein is Distinguished Professor and the Dr. Robert and Barbara Crisafi Chair for Medication Safety in the Department of Pharmaceutical Outcomes and Policy and in the Department of Epidemiology, and the founding Director of the […]

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Carolyn Baglole, PhD,

December, 11, 2025 1:00 PM MST

Multi-omics dissection of the molecular and pharmacological effects of inhaled cannabis

Professor Carolyn Baglole earned her Bachelor of Science and Master of Science degrees from the University of Prince Edward Island, followed by a PhD in Physiology and Pharmacology from the University of Calgary. Dr. Baglole then completed postdoctoral training at […]

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Margaret Haney, PhD

Nov 13, 2025 01:00 PM MST

Cannabis Misuse and Therapeutic Potential: Placebo-controlled Laboratory Studies

Dr. Margaret (Meg) Haney is a Professor of Neurobiology (in Psychiatry) at the Columbia University Irving Medical Center. As the Director of the Cannabis Research Laboratory and of the Substance Use Research Center in the Division of Substance Use Disorders, Dr. Haney is […]

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Inga Zasada, Ph.D.

Wednesday, February 18 at 11:00 AM MST

Dr. Inga Zasada brings over 25 years of expertise in nematology, specializing in the biology and management of plant-parasitic nematodes affecting high-value crops such as hemp. With deep knowledge spanning both chemical and nonchemical control strategies, she provides comprehensive solutions for complex nematode challenges. As owner of NemaSolutions LLC, […]

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Dan Ovadya, CEO

New Methods for Induction of Male Flowers and Scalable Feminized Seed Production in Cannabis Sativa

Dan Ovadya is the Co-founder and CEO of FloraGen LLC, an AgTech company based in Davis, California. Dan has
over 30 years of experience in crop optimization, precision horticulture and seed production systems in controlled
environments. His career in Ag-Biotech centered on developing […]

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