Whiteflies are a common pest of many ornamental plants throughout Florida and the world. There are more than 1,500 species worldwide and over 75 reported in Florida. Although infestation does not always require treatment, it is important to be able to identify and monitor for these pests for effective integrated pest management. This 8-page fact sheet written by Eileen A. Buss, Catharine Mannion, Lance Osborne, and Adam Dale and published by the Entomology and Nematology Department describes whitefly species, their identification and biology, the damage they cause, and best management practices to control them and still maintain healthy populations of natural enemies and other beneficial insects.
http://edis.ifas.ufl.edu/mg254