Soilless Substrate Science (S3) is a national transdisciplinary collaboration developed to support growers as we advance to the next generation of substrates. Our team is leading North American efforts to develop new substrate materials and techniques, and working with growers to support implementation, as we support the global transition to substrates that go Beyond Peat. In this webinar, Dr. Jeb Fields will discuss the S3 team efforts surrounding identification of new substrate materials, processing and development, and grower support. We will explore wood fiber processing, sugarcane bagasse substrate development, stabilization of organic fibers, databasing substrate materials, and opportunities for growers to get involved. Overall, attendees will learn about US efforts to develop domestically-sourced substrates and advance substrate science as we move towards the next generation of substrate science. Our Speaker Dr. Jeb Fields is a production horticulturist who works with growers in Florida and throughout the country to support more effective and efficient production practices through his environmental nursery research program. Jeb’s primary interests include growing media & substrate science, irrigation & fertilizer management, whole plant-water relations and plant abiotic stress physiology. Jeb is an internationally recognized substrate scientist, the leader of the Beyond Peat project through the USDA Specialty Crops Research Initiative, and the national S3 (Soilless Substrate Science) team which pursues advancements of the global substrate industry and development sustainable substrate materials and practices, including substrate stratification. Jeb is the editor for Nursery & Landscape Insider, a biweekly e-newsletter from Ball Publishing, that reaches over 32,000 stakeholders worldwide. For his efforts, he has been recognized with numerous awards, honors, and leadership positions. Prior to joining UF, Jeb was a professor and research station director with the LSU AgCenter. Jeb studied at UF for his B.S., NC State University for his M.S., and Virginia Tech for his Ph.D. – with all degrees focusing on production horticulture.

This webinar dives into the problem of rose rosette virus. Shrub roses consist of multiple canes attached to a root system and produce beautiful spring growth in the form of new flowering stems and branches. Experts will provide an overview of how rose rosette virus first attacks flowering growth and can move throughout the stem. At the same time rosette symptoms appear in mature distinct stems of a plant and may be absent from others. The research delves into understanding how the vascular system connects the flowering stems and above ground canes. The research is to understand how virus movement between adjacent stems and only appears to cause disease in a few but not all canes of the same plant. This research is important to explore potential management approaches to safeguard rose.