History and Future of Sustainable Plasticulture in CA with Jazmine Mejia-Muñoz
Release Date: 07/15/2025
Understanding Biodegradable Mulches, Microbes and Isotopes with Sean Schaeffer and Jacob Clements
Mulch Matters
In this episode of Mulch Matters, host Dr. Nataliya Shcherbatyuk sits down with University of Tennessee researchers Dr. Sean Schaeffer and Jacob Clements to explore the unseen world beneath our feet, where biodegradable mulches, soil microbes, and even carbon isotopes reveal surprising stories. Together, they break down what happens to soil‑biodegradable mulches (BDMs) once they enter the soil, how microbes physically and chemically transform plastic into smaller fragments, and why climate factors like temperature, moisture, and soil texture play such a big role in decomposition. Jacob...
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The Science Behind Compostable Mulch: A Conversation with Dan Martens
Mulch Matters
In this episode of Mulch Matters, host Dr. Nataliya Shcherbatyuk sits down with Dan Martens, Vice President of Novamont North America, for a deep and candid conversation about the past, present, and future of compostable mulch films. Drawing on more than 20 years of experience, Dan walks us through the evolution of compostable materials, the science behind biodegradation, and why understanding microplastics requires more logic than fear. Together, they explore: How compostable mulch films have been studied for over two decades What long‑term soil research reveals about biodegradation and...
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From Macro to Micro: Following Mulch Fragments Through the Soil
Mulch Matters
In this episode of Mulch Matters, host Dr. Nataliya Shcherbatyuk sits down with Washington State University PhD researcher Xueyu Zhou to dig into what really happens to biodegradable mulch once it’s tilled into the soil. Xueyu shares insights from a multi‑state field experiment spanning Washington, Nebraska, Florida, and California, where the team tracks mulch fragments—from large pieces to microplastics—over time. She explains how soil conditions, climate, and microbial activity shape the degradation process, and why strawberries are an ideal crop for testing these materials under...
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Beyond the Plastic: How Social Values Shape Mulch Decisions in Agriculture
Mulch Matters
In this episode of Mulch Matters, we are joined by Dr. Beth Prosnitz, a postdoctoral research associate and sociologist at Washington State University, to explore the human side of plastic mulch decisions in agriculture. Rather than focusing only on materials or technology, this conversation dives into how economic realities, social values, land tenure, environmental responsibility, and farmer identity all intersect when growers decide whether to use polyethylene or biodegradable plastic mulch particularly in strawberry production systems. Beth introduces the concept of relational work,...
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Plastic Waste to Soil Wealth: A Microbial Makeover with Sam Baker
Mulch Matters
In this episode of Mulch Matters, we sit down with Sam Baker, CEO of Wriggle Brew, for a compelling conversation that bridges soil science, sustainability, and the future of plastic waste management. What began as a quest to develop organic fertilizers using earthworms evolved into a groundbreaking exploration of how larval microbes can digest plastic - offering a novel, biologically driven solution to one of the planet’s most pressing environmental challenges. Sam shares the origin story of his work, from his background in chemistry and economics to the moment a fishing trip with his...
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Recycling Roots: Theron Smith’s Journey from Metal to Mulch in the Plasticulture Revolution
Mulch Matters
This podcast episode from Mulch Matters features an in-depth conversation with Theron Smith, co-owner of Flipping Iron—a California-based recycling company that has evolved from metal recovery to becoming a key player in agricultural plastic recycling. The episode traces Theron’s personal and professional journey, beginning with his grandfather’s metal recycling business and expanding into the complex world of plasticulture, including mulch film, fumigation film, and drip tape. Theron shares insights into the challenges of recycling agricultural plastics, the evolution of Flipping...
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From Wood Chips to Mulch: A Conversation on Lignocellulose Film with Aidan Williams
Mulch Matters
In this episode we’re diving into a type of mulch you may not have heard much about—lignocellulose film (LCF). Joining me is Aidan Williams, who has been researching this bio-based biodegradable mulch made from renewable woody biomass. Aidan shares her journey into agroecology, how LCF is produced, and why it could be a promising alternative to plastic and paper-based mulches. We also explore results from her greenhouse raspberry trials, insights on soil degradation experiments, and even consumer perspectives on biodegradable mulches. If you’re curious about sustainable...
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Beyond Plastic: Dr. Shuresh Ghimire on Extension Partnerships, IPM, Hemp, and Smarter Mulching Solutions
Mulch Matters
In this episode of Mulch Matters, we welcome Dr. Shuresh Ghimire, Associate Extension Educator and IPM Specialist at the University of Connecticut. From his roots on a small farm in Nepal to leading integrated pest management programs in the USA, Shuresh shares his journey, expertise, and insights into sustainable agriculture. The conversation dives into: Why integrated pest management (IPM) is critical for balancing environmental, economic, and social priorities. The real-world benefits and challenges of using biodegradable mulches (BDMs) vs. polyethylene...
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History and Future of Sustainable Plasticulture in CA with Jazmine Mejia-Muñoz
Mulch Matters
In this episode of Mulch Matters, we speak with Jazmine Mejia-Muñoz, Water Quality Program Manager at the California Marine Sanctuary Foundation, about the intersection of agriculture, conservation, and plastic use in California’s iconic Monterey Bay region. Together, we explore the deep-rooted history of plasticulture, the evolving role of biodegradable mulches (BDMs), and what it takes to transition toward more sustainable practices in high-value cropping systems like strawberries. Jazmine shares real-world insights from grower collaborations, lessons from field trials, and...
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From Washington to China: Lessons in Strawberry Production and Sustainable Ag with Dr. Carol Miles
Mulch Matters
In this episode of Mulch Matters, we are joined by Dr. Carol Miles from Washington State University, for a compelling conversation about her recent trip to China to attend the International Strawberry Symposium. Our discussion offers a fascinating window into the contrasts and connections between Chinese and U.S. agricultural practices, particularly around strawberry production and plastic mulch use. Carol reflects on the incredible technological leap she observed in Chinese greenhouses, where high-tech, hydroponic tabletop systems are now used in showcase facilities. But she also shares her...
info_outlineIn this episode of Mulch Matters, we speak with Jazmine Mejia-Muñoz, Water Quality Program Manager at the California Marine Sanctuary Foundation, about the intersection of agriculture, conservation, and plastic use in California’s iconic Monterey Bay region.
Together, we explore the deep-rooted history of plasticulture, the evolving role of biodegradable mulches (BDMs), and what it takes to transition toward more sustainable practices in high-value cropping systems like strawberries. Jazmine shares real-world insights from grower collaborations, lessons from field trials, and challenges of BDM use in rotational systems. From labor costs and landfill fees to microplastic misconceptions and grower education, this episode dives into both the science and human stories behind the mulch.
Whether you're a grower, researcher, or sustainability advocate, this episode offers a well-rounded look at why mulch matters—and how collaborative innovation can lead to healthier soils and cleaner waters.
This work is supported by Specialty Crops Research Initiative Award 2022-51181-38325 from the USDA National Institute of Food and Agriculture. Any opinions, findings, conclusions, or recommendations expressed on this podcast are those of the author(s) and do not necessarily reflect the view of the U.S. Department of Agriculture.
Note: intro and outro music credit to Zakhar Valaha from Pixabay https://pixabay.com/music/introoutro-motivational-ident-main-9923/