Foreign Exploration for Insect Natural Enemies of Bemisia for Use in Biological Control in the USA: A Successful Program -- Entomopathogenic Fungi for Control of Bemisia tabaci Biotype B: Foreign Exploration, Research and Implementation -- Systematics and Biology of Encarsia -- The Genus Eretmocerus -- Molecular Characterization with RAPD-PCR: Application of Genetic Diagnostics to Biological Control of the Sweetpotato Whitefly -- Quarantine Evaluation of Parasitoids Imported into the USA for Biocontrol of Bemisia tabaci Biotype B -- Evaluation of Exotic Parasitoids and Predators in Field Cages in California -- Field Evaluation of Bemisia Parasitoids in Texas -- Mass-Rearing Bemisia Parasitoids for Support of Classical and Augmentative Biological Control Programs -- Release and Recovery of Exotic Parasitoids of Bemisia tabaci in the Lower Rio Grande Valley of Texas -- Release and Recovery of Four Species of Eretmocerus against Bemisia tabaci Biotype B in Arizona -- Release and Recovery of Exotic Natural Enemies of Bemisia tabaci (Biotype "B") ((Hemiptera: Aleyrodidae) in Imperial Valley, California -- Releases of Exotic Parasitoids of Bemisia tabaci in San Joaquin Valley, California -- Habitat Management for the Establishment of Bemisia Natural Enemies -- Integrating Parasitoid Releases with Traditional Control Methodologies: Experience in the Spring Melon Production System in the Southwestern USA -- Multivariate Analysis of Bemisia tabaci Biotype B and Associated Parasitoid Populations within the Imperial Valley Agricultural System -- Indigenous Parasitoids of Bemisia in the USA and Potential for Non-Target Impacts of Exotic Parasitoid Introductions. This book reviews the interagency research and development effort on classical biological control in the USA from 1992-2002. The successful exploration, importation, screening, evaluation, rearing, and establishment of at least five exotic Bemisia. tabaci natural enemies in rapid response to the devastating infestations in the USA is a landmark in interagency cooperation and coordination of multiple disciplines. In this volume, the various authors present detailed reviews of natural enemy exploration, introduction, and evaluation efforts that will serve as a guide to support and encourage classical biological control inputs into other integrated pest management systems.