The Problem Silverleaf whitefly is costly to manage. Understanding the factors that help control whitefly populations is valuable in preventing and managing outbreaks to reduce the risk of costly sprays and of lint contamination. In experiments over 3 years we followed the survival of whitefly eggs and nymphs in the field and attributed mortality to: parasitism, predation, dead or missing. This allows us to understand both the magnitude of natural mortality and also start to identify the main factors causing it.