LIFE-HISTORY PARAMETERS OF DIFFERENT BIOTYPES OF BEMISIA-TABACI (HEMIPTERA, ALEYRODIDAE) IN RELATION TO TEMPERATURE AND HOST-PLANT - A SELECTIVE REVIEW

Life-history parameters of different biotypes of the whitefly Bemisia tabaci (Gennadius) species complex were reviewed. This included the B- biotype of B. tabaci, identified as B. argentifolii (Bellows & Perring ). Comparisons were made among different biotypes on cotton, among hos t plants for biotype B and among the whitefly species B. tabaci and Tr ialeurodes vaporariorum (Westwood), the greenhouse whitefly. The bioty pe identification of different populations of B. tabaci was summarized in a table. Biotypes discussed were A, B, Indian and biotypes of the Old World group. Temperature dependent relationships were estimated fo r egg development rate, development rate from egg to adult, immature m ortality, adult longevity, sex-ratio, pre-oviposition period and fecun dity. The fitted curves will be used as input for a simulation model o f the population dynamics of B. tabaci in a greenhouse when parasitoid s are released. The model makes it possible to evaluate the integrated effect of different life-history parameters and behavioural parameter s of parasitoids on whitefly population levels in a greenhouse.