Xylella fastidiosa is a bacterial pathogen responsible for a range of serious plant diseases, including those affecting economically important crops such as peaches, plums, and cherries. The survey, which commenced in January 2024, meticulously examined various Prunus species and cultivars across multiple locations in Gainesville to assess the prevalence and distribution of the infection.
Key findings from the survey include:
High Prevalence: The survey identified Xylella fastidiosa in over 65% of the Prunus germplasm surveyed, with varying infection levels across different cultivars.
Widespread Impact: The infection was found in both ornamental and commercial Prunus varieties, raising concerns about potential impacts on local and regional fruit production.
Diverse Symptoms: Infected plants exhibited a range of symptoms, from leaf scorch and dieback to more severe impacts on plant vigor and fruit production.
The results of the survey help researcchers understand the impact of this pathogen on the performance and survival of Prunus species and hybrids in the germplasm collection and will help guide the breeding of improved stone fruit cultivars adapted to the high-disease environment of the southeastern United States.
Dr. Chaparro is an Associate Professor in the department of Horticultural Sciences, University of Florida, Gainesville. His areas of research include stone fruit breeding and genetics, and citrus breeding and genetics.
The full article can be found on the ASHS HortSciece electronic journal website at:
Established in 1903, the American Society for Horticultural Science is recognized around the world as one of the most respected and influential professional societies for horticultural scientists. ASHS is committed to promoting and encouraging national and international interest in scientific research and education in all branches of horticulture.
Comprised of thousands of members worldwide, ASHS represents a broad cross-section of the horticultural community-scientists, educators, students, landscape and turf managers, government, extension agents and industry professionals. ASHS members focus on practices and problems in horticulture: breeding, propagation, production and management, harvesting, handling and storage, processing, marketing and use of horticultural plants and products. To learn more, visit ashs.org.
