Biological control of woolly whitefly

The woolly whitefly, Aleurothrixus floccosus Mask., first discovered in residential San Diego during November 1966 surveys for the citrus whitefly, has been of deep concern to the citrus industry , the University of California, and various agricultural agencies. In 1968, a study by Harold Lewis for the California-Arizona Citrus League estimated potential losses to California citrus of $10 per acre for either whitefly or a 17 percent average increase in total pest control costs statewide.