​​​​Recent Viroid Disease Outbreaks in Greenhouse Tomatoes in North and Central America and Their Management

September 2015 | 14 min., 11 sec.
by Kai-Shu Ling
USDA-ARS

Summary

This presentation will help consultants, county agents, tomato growers, seed producers, federal and state regulators, and other practitioners in North America and around the world to understand the emerging viroid diseases of tomato, including their distribution, detection, and management. Specifically, in this presentation practitioners will learn about recent viroid disease outbreaks; what viroids are and how they are transmitted through seed and mechanical means; what key factors affect viroid disease epidemics in a greenhouse; technologies in disease diagnosis and viroid detection; and which chemicals are most effective to prevent viroid mechanical transmission. By the end of this presentation, the practitioner should know more about tomato-infecting viroids, including their diagnosis and detection and how to prevent and manage a viroid disease outbreak in greenhouse tomato productions.

About the Presenter

Kai-Shu LingKai​-Shu Ling has been a Research Plant Pathologist (virology) at the USDA–Agricultural Research Service, U.S. Vegetable Laboratory, in Charleston, South Carolina, since 2004. He received his PhD in Plant Pathology from Cornell University in 1995. After a 2-year postdoctoral appointment at Cornell, he moved on to work for a start-up biotech and then a vegetable seed health testing company in California. His current areas of research are to develop genetic or biologically based management approaches against emerging and endemic viruses and viroids of vegetable crops, especially those with seedborne and mechanically transmitted viruses of tomato and cucumber in greenhouse production systems. Timely and accurate identification of the causal agents is a prerequisite for making a science-based disease management.

Contact Information:
Email: kai.ling@ars.usda.gov

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