ABSTRACT
Studies on population dynamics of Bemisia tabaci have received attention, matching its growing stature as a very formidable pest, especially of cotton, in different countries where the whitefly was of little significance earlier. The seasonal migration of whiteflies from one host plant to another has been reported by various authors. In the cotton production system of the south-western United States, B. tabaci seems to need only short-range migration once established in an area where hosts are continuously available. The characteristics of the host plant not only influence the biology of the whitefly, but also define the spatial qualities of the system. Climatic conditions are perhaps the most important of the factors that influence population dynamics of B. tabaci. Information on the role of the natural enemies on population dynamics of the whitefly is limited and mostly anecdotal. Population fluctuations on cotton have been studied by various workers under diverse agroclimatic conditions.
