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Presentations and Activities for Procrastinators Recertification Seminar
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Welcome to The Turf Zone podcast.
On this episode we preview presentations and activities for the procrastinators recertification seminar on June 11, 2026 in Maryland.
Introductory comments are from 8:00 AM to 8:10 AM with moderator Dr. Carroll.
From 8:10 AM to 9:00 AM will be a presentation titled “Thinking Outside the Chemical Box: Prospects for Alternative Approaches to Weed Management in Turf” by Dr. Daniel Buonaiuto, Assistant Professor, Department of Plant Science and Landscape Architecture, University of Maryland.
For the past half century, the field of weed science has been focused on chemically managing noxious weeds and invasive plants. While this focus has led to useful advances in weed control, it has also given rise to herbicide resistant weed genotypes and increased incidences of negative environmental and health impacts. Scientists are calling for a new weed science research agenda focused on integrating chemical control with mechanical, cultural and biological management approaches, but new research agendas take time, and the weeds are growing right now.
In this session we’ll survey the tools and techniques that are available right now that can aid turf professionals in managing problematic weeds with fewer chemicals. We’ll also discuss the potential for practitioner-research partnerships to rapidly advance our collective expertise in integrated weed management in turfgrass systems.
From 9:00 AM to 9:50 AM will be a presentation titled “Improving Dollar Spot Control While Reducing Fungicide Inputs” by Mr. Uday Kumar, Doctoral Candidate, Department of Plant Science and Landscape Architecture.
Dollar spot is the most common and costly disease on golf course fairways in the Mid-Atlantic region, and most courses rely heavily on calendar-based fungicide programs to keep it in check. This presentation covers two practical, research-backed approaches that can help superintendents get better control while reducing the number of sprays applied each season. Three years of field trials at the University of Maryland showed that timing fungicide applications using the Smith–Kerns dollar spot prediction model at the 20% threshold provided the same level of control as a standard 14-day calendar program while reducing applications by two to four sprays per season. In addition, nightly UVC irradiation delivered by an autonomous mower consistently suppressed dollar spot in lab, greenhouse, and field conditions. When UVC was combined with fungicides at 28-day intervals, turf quality remained acceptable while significantly reducing chemical inputs. Together, these tools offer a more precise and sustainable approach to dollar spot management on golf course fairways.
Presentations will break from 9:50 AM to 10:00 AM then resume with a presentation titled “IPM Strategies for Ornamental Landscape Diseases” from 10:00 AM to 10:50 AM presented by Dr. David Clement, Plant Pathologist, University of Maryland Extension.
Many landscape ornamental diseases require early diagnosis for effective management. Scouting is critical to finding symptoms early. This presentation will cover the common diseases in Maryland landscapes along with key diagnostic symptoms coupled with Integrated Pest Management strategies.
From 10:50 AM to 11:40 AM Mr. Geoffrey Rinehart, Senior Lecturer, Institute of Applied Agriculture, University of Maryland will present “Fertilizer Product Selection and Nanotechnology Use in Fertilizer Programs”
This presentation will provide information about what nanotechnology is and how it is being researched to improve the efficiency and efficacy of turf fertilizers and plant protectant products. In addition, this talk will encompass an overview of the major nitrogen fertilizer sources and their respective release characteristics. Timings for utilizing various major fertilizer sources for improved turfgrass health and effective nitrogen utilization will be discussed.
From 11:40 AM to 12:30 PM Dr. Mark Carroll. Associate Professor, Department of Plant Science and Landscape Architecture, University of Maryland will present “Organic Lawn Care: Principles, Science and Landscape Architecture, University of Maryland”
Synthetic fertilizers and pesticide treatments are often the primary chemical inputs in conventional lawn care; however, growing human health and environmental concerns have many homeowners seeking lawn care programs that are marketed as Natural or Organic. Natural and Organic programs emphasize the use of materials and practices that enrich soil organic matter and promote presence of organisms perceived to be beneficial to promoting plant health. This presentation will review the principles underlying an organic approach to turfgrass management and will provide an overview of the materials being used by lawn care operators in Maryland that offer organic or natural lawn care services. Difficulties in adhering to organic precepts when offering an organic or natural lawn care program will also be discussed.
From 12:30 PM to 1:15 PM the presentations will break for lunch and resume with a presentation titled “Pesticide and Fertilizer Spray Calibration Field Demonstration” from 1:15 PM to 2:00 PM by Steve Holman, Paint Branch Turfgrass Facility Research Technician.
For additional information about the event visit the Maryland Turfgrass Council website at www.mdturfcouncil.org
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