HS1122, a 5-page illustrated fact sheet by Ed Etxeberria, Pedro Gonzalez, William Dawson and Timothy Spann, presents an IFAS-developed version of a rapid, simple field diagnostic tool for Citrus Greening (Huanglongbing) and how to interpret the results. Includes references. Published by the UF Department of Horticultural Sciences, December 2007. http://edis.ifas.ufl.edu/HS375