Cannabis Cultivation and Science Podcast

This was a fun podcast for me because I think there's a lot of misinformation around this topic and it was great to hear from an expert! Sphagnum Peat Moss is the gold standard for the horticulture industry. In N. America we use the majority of our peat for growing plants. Are there better options? What's the current research tell us about the sustainability of peat moss? In this episode we talk about why peat moss is such a popular choice for media as well as the pros and cons of the current substrates on the market.

My guest this week is Christine DeJesus. Christine operates at the intersection of regenerative organic agriculture and social justice. For five years she’s been perfecting a highly efficient organic cultivation model while managing operations for Galenas Cannabis in Akron, Ohio. Prior she worked in food justice, ran a farm for Great Lakes Brewing Company, functioned as campaign coordinator for Marijuana Policy Project, and co-founded the Midwest CannaWomen. She was featured in the documentary “Polycultures: Food Where We Live,” with Michael Pollan, and at the “My Global Kitchen” exhibit at the Cleveland Museum of Natural History. Christine is a creative writer, a columnist for Cannabis Business Times magazine, and holds degrees from both Kent State and the University of Pittsburgh. In her current role, she focuses on keeping plants, processes, and people healthy and productive while delivering top-tier quality cannabis flower to Ohio consumers. Christine also works with home-growers to bring commercial-level success to their backyard gardens.

Christine Goedhart is an experienced educator and educational developer with a specialization in teaching undergraduate biology courses. Currently serving as a Science Education Specialist at the University of British Columbia, she supports faculty in making their courses more equitable and student-centered, and she recently developed and taught an undergraduate Biology of Cannabis course. Previously, Christine spent eight years as a full-time faculty member at Citrus College, where she taught a variety of biology courses for non-major students. With a strong commitment to student-centered and inclusive education, Christine has effectively implemented innovative pedagogical and assessment strategies to enhance student engagement and learning in biology courses, and she shares information, tips, and evidence-based best practices for teaching in her Tips for Teaching blog article series.

My guest this week is Matthew DeBacco. Matthew received his Bachelors degree in Pathology with a secondary degree in horticulture, then going on to receive a master’s degree in agronomy 2011 and a masters in education in 2014, both from the university of Connecticut. Then in 2020 he received his PhD from Ashford University. Matthew started the first cannabis course at a public university at the University of Connecticut. I first found out about Matthew from his research on powdery mildew with cucurbits using raw milk, as it was circulating around the giant pumpkin community. Matthew also enjoys growing giant pumpkins and has held the state record twice with the largest weighing 1,885.5 lbs. In this episode we talk about the similarities between the giant pumpkin community and the cannabis community and how we might be able to utilize some of the advancements across the cultivation of these very different plants. Now on to the show!

My guest this week is Dr. Adel Zarei. Dr. Zarei earned his Ph.D. degree from Leiden University in the Netherlands, specializing in molecular mechanisms governing defense and secondary metabolism in plants. Dr. Zarei spent a decade as a Research Associate at the University of Guelph, where his research focused on stress physiology in plants. His primary passion lies in the study of plant secondary metabolites, many of which possess pharmaceutical significance. In 2017, Adel transitioned to the Cannabis industry, serving as a Scientific Advisor and Cannabis Micropropagation Expert. He played a pivotal role in designing and establishing multiple Cannabis Micropropagation labs for Cannabis Production License Holders. His groundbreaking work in this field garnered multiple Government grants and led to the development of commercial-scale cannabis micropropagation techniques. The results of this research were published in prestigious peer-reviewed journals, including In Vitro Cellular and Developmental Biology-Plant and Plants”. Throughout his scientific career, Adel has authored more than twenty-two peer-reviewed articles covering topics such as plant stress physiology, secondary metabolites, and plant pathology. Dr. Zarei is an integral member of the PharmaCrop team, serving as the Chief Operating Officer at PharmaCrop Pty. Ltd. in Queensland, Australia. In this role, he oversees operations that encompass every stage of the process, from seed cultivation to the final production of medical-grade cannabis products. Dr. Zarei has successfully transferred his extensive knowledge and experience in the cultivation and processing of medical cannabis into Australia burgeoning industry. Now on to the show!

My guest this week is Adam Arnold is a founder/ Owner at Collective Elevation in Bozeman Montana. Collective Elevation is one of the largest living soil cannabis greenhouse facilities in the country. Adams been growing cannabis for 20 years, the last 10 at his facilitiy in Bozeman which was designed and built from the ground up by him and his team. Prior to recreational legalization in Montana he built off grid greenhouse facilities in Montana during the medical days and has founded Collective Elevation on a platform of sustainability utilizing sun assisted living soil practices. He went to school at the university of Idaho for Conservation Biology and Natural Resource Ecology and worked in wilderness management for the Forest Service prior to working in the Cannabis industry. I had the pleasure of visiting Collective Elevation last year and filmed my tour, which is available on Youtube, I highly suggest checking it out. It’s one of the nicest facilities I’ve ever seen in person and I’m honored that they have been using our soils in their greenhouses for a few years now. Anyway, now on to the show!

Dr. Tassa Saldi is an accomplished molecular biologist with more than 25 years of research experience in RNA biology, infectious disease, and molecular pathogen detection. Dr. Saldi graduated Summa Cum Laude with a degree in Molecular Biology. She completed her graduate and postdoctoral studies at the University of Colorado, where she studied RNA structure, small RNAs and RNA processing. She was awarded a prestigious fellowship from the American Cancer Society and was one of eighteen doctoral fellows nationwide invited to present her research at the Aspen Cancer Conference. Dr. Saldi has authored more than 20 peer-reviewed articles in top-tier journals. As the Chief Science Officer and co-founder of TUMI Genomics, Dr. Saldi continues to use her expertise to provide the cannabis industry with reliable, accurate diagnostic tools and pathogen mitigation guidance.

My guest this week is a returning guest. Dr. Nicole Gauthier is a pathologist, and Professor and Extension specialist at the University of Kentucky. Her program focuses on disease management of specialty crops, including hemp. In her Extension role, she develops educational and outreach programs to help growers manage disease through identification, understanding of pathosystems, and integration of management strategies. Her research program focuses on a range of hemp diseases, including Fusarium head blight. Dr. Gauthier earned her BS in Horticulture Science and her PhD in Plant Pathology from Louisiana State University. She joined the UK College of Agriculture in 2011 and began working with industrial hemp in 2014. There will be a link on the podcast page to access her resources and research. Now on to the show! Hemp and cannabis research and Extension fact sheets https://plantpathology.ca.uky.edu/extension/publications#HEMP Silicon study https://plantpathology.ca.uky.edu/files/pprr-02.pdf

George has degrees in Horticulture from the University of Georgia and the University of Florida. He is the GGSPro Technical Services Manager with Griffin Greenhouse Supplies. GGSPro assists ornamental, edible, and hemp/cannabis growers across the country with their cultivation issues ranging from sanitation, IPM, fertility, lighting, and water quality. GGSPro fields over 17,000 grower related calls and emails annually. This amount of valuable interaction helps Griffin collaborate with chemical vendors, academic researchers, and plant producers to implement change within the green industry.

My guest this week is June Graesch from Bioworks. Julie has 18 years of experience as a biological scientist, practiced in laboratory, greenhouse, and field research as well as technical service support for the integrated pest management industry. She has been with BioWorks for 5 years and has previously held positions at BASF, Becker Underwood, and Iowa State University. Now on to the show!

Irrigation is one of the most underrated aspects of cultivation and understanding water quality, dissolved oxygen, and best practices will make a HUGE difference in plant health. My guest this week is Les Evans from Dramm, to answer all my questions about water. Les has a degree in Biological Engineering, with a concentration in Water/Soil & Environmental Engineering from NC State University, and 29 years of industry experience helping growers, of all types of crops, with their environmental and water quality challenges. Les’ day-to-day involves supporting the Dramm sales team and their customers with water treatment designs that maximize investment while minimizing environmental impact. When he's not at his desk, he can be found planting perennials with his family, or running the NC Mountains-to-Sea trail system a stone's throw from his home in Raleigh.

My guest this week is Chris Castle. Chris is the co-founder and CEO/COO of Flora & Flame out of California, currently the largest vertical indoor living soil cannabis farm. Chris is a bay area native who has been cultivating cannabis for 17 years, with the last 6 solely on indoor living soil.

Before starting the podcast I wanted to let listeners know that I plan on adding more interviews of growers this season. While the original intention of the podcast was to bridge the gap between academic research and real life cultivation, I have done a wide variety of interviews of the years and think it’s important to hear how growers are dealing with real day to day issues in their cultivation facilities, as we don’t typically get to grow under perfect conditions and control for every variable. So while these interviews might be slightly less scientific and may contain some personal experiences and anecdotal information, my hope is that it will spark new ideas, research, and help growers deal with real life scenarios that they may be facing as well, and grow the community. In the spirit of this, my guest this week is Matthew Butters. I met Matthew when he emailed me and we started corresponding. I went to tour his facility, which is about 2.5 hours away from me, and after the tour I decided I wanted to have him on the podcast. Matthew serves as the Director of Cultivation at Smokey Point Productions and Waypointe Ventures, a prominent i502 operation in Washington. Leveraging his expertise in cannabis cultivation, he has a rich history of successfully developing and leading cultivation teams in various settings worldwide. Matthew is driven by a commitment to achieving sustainable production of top-tier cannabis on a commercial scale, reflecting his passion for excellence in the industry. Now on to the show!

My guest this week is Michael Alden. Michael is the Research Director at Stairway Holding, Inc. and explores methods to improve efficiency and productivity in cannabis cultivation. He spent the past 5 years as a graduate research assistant with Dr. Jim Faust studying the flowering physiology of poinsettias (M.S.) and cannabis (PhD) at Clemson University. Now on to the show!

My guest this week is my good friend, Suzanne Wainwright-Evans also known by many as The Bug Lady. She is an Ornamental Entomologist specializing in integrated pest management. Suzanne has been involved in the Green Industry for more than 25 years with a primary focus on biological control and using pesticides properly. She is a graduate of the University of Florida with degrees in both Entomology and Environmental Horticulture. Suzanne has been on the podcast multiple times and I highly suggest folks go back and listen to some of her other podcasts if you haven’t already.

Bryant is a Certified Crop Advisor who specializes in organic cannabis nutrition. He has spent the last 5 years working to combine precision laboratory techniques with data science in an effort to unravel the complexities of cannabis soil and crop nutrition. Along with his work on soilless media, he also helps outdoor cultivators around the U.S. with nutrient management and cover cropping. If you would like to do soil testing, help interpreting a soil test, or are interested in an online course on these subjects, his website is www.soildoctorconsulting.com. If you want to save $100 on his course, you can use the discount code KISORGANICS, all one word. I’ve taken his course and was recently going back to review some of the content. It’s excellent and I highly recommend it for anyone wanting to do a deep dive on cannabis fertility and re-using your soil. Now on to the show!

Welcome to the Cannabis Cultivation and Science podcast, I'm your host Tad Hussey of KIS Organics. This is the podcast where we discuss the cutting edge of growing from a science based perspective and draw on top experts from around the industry to share their wisdom and knowledge. My guest this week is Bryant Mason. I’ve had Bryant on the podcast a few times in the past and he’s one of my favorite guests. Bryant is a Certified Crop Advisor who specializes in organic cannabis nutrition. He has spent the last 5 years working to combine precision laboratory techniques with data science in an effort to unravel the complexities of cannabis soil and crop nutrition. Along with his work on soilless media, he also helps outdoor cultivators around the U.S. with nutrient management and cover cropping. If you would like to do soil testing, help interpreting a soil test, or are interested in an online course on these subjects, his website is www.soildoctorconsulting.com. If you want to save $100 on his course, you can use the discount code KISORGANICS, all one word. I’ve taken his course and was recently going back to review some of the content. It’s excellent and I highly recommend it for anyone wanting to do a deep dive on cannabis fertility and re-using your soil. Now on to the show!

In this episode, I review some of the available research on mycorrhizal fungi and how it applies to cannabis and other edible crops. I also talk about how to determine what products are worth using in your garden, how best to apply mycorrhizal fungi, and what its role is in heavy metal uptake.

Robert Thomas is the principal scientist at Scientific Solutions, a consulting company that serves the educational needs of the trace element user community. He has worked in the field of atomic and mass spectroscopy for almost 50 years, including 24 years for a manufacturer of atomic spectroscopic instrumentation. Rob has written overt 100 technical publications, including a 15-part tutorial series entitled, A Beginner’s Guide to ICP-MS. He is also the editor and frequent contributor of the Atomic Perspectives column in Spectroscopy magazine, as well as serving on the editorial advisory board of Analytical Cannabis. In addition, Rob has authored 6 textbooks on the fundamental principles and applications of ICP-MS. His most recent book is entitled, A Practical Guide to ICP-MS and Other AS Techniques, which was published in September, 2023. Rob has an advanced degree in analytical chemistry from the University of Wales, UK, and is also a Fellow of the Royal Society of Chemistry (FRSC) and a Chartered Chemist (CChem).

Victoria has a lifelong interest in studying the interactions between microbes and their surrounding environment. She earned her Ph.D. in Microbiology and Immunology from the University of Michigan before moving to Dartmouth College to further her studies with postdoctoral research. As Chief Science Officer of Imio, Victoria has led the development and production of multiple microbial products that replace harmful chemicals and enable healthier, more productive cultivation of plants. Charles started Imio to dedicate his career to helping people, plants and our planet. After graduating from Dartmouth College, he began his career at Morgan Stanley where he focused on the technology sector. He moved on from finance to join a NYC based software startup where he gained valuable insight into scaling companies and teams. As CEO of Imio, Charles manages Business Development and Operations, as the company works to unlock plant productivity and restore our planet through the power of nature. Now on to the show!