The successful management of silverleaf whitefly in the San Joaquin Valley is dependent upon IPM, resistance management and hard work. As observed in 1997, chemical tools (particularly the use of the insect growth regulators (IGRs)) are an integral part of a whitefly management program. However, the efficacy of these products depends upon a good scouting program, use of the action thresholds and judicious application of each tool. A high quality program must also include cultural management techniques tailored on a regional basis. In the SJV a high premium should be placed on host plant sanitation, cotton management and intensive scouting to assist in good decision making.