ABSTRACT

This chapter presents the information available on the development duration, fecundity, survival, longevity and sex ratio of Bemisia tabaci, as well as on the various factors determining population dynamics of the whitefly. While going through the array of literature on the bionomics of B. tabaci, it becomes quite evident that the manipulation of environmental conditions for experiments has been virtually limited to temperature variations. Several workers have studied the incubation period of B. tabaci eggs at particular constant temperatures. The total duration of the immature stages of B. tabaci reportedly varies widely and is correlated with climate and host-plant conditions. Rapid development during summer and the adverse effect of winter on the development rate clearly show the whitefly to be thermophilic. T. Li et al. studied the courtship and mating behaviour of B. tabaci and found it to be complex.