Biology of cotton whitefly, Bemisia tabaci (Hemiptera: Aleyrodidae) on cotton

Abstract

Studies on biology of cotton whitefly, Bemisia tabaci were carried out under screen house conditions on cotton (variety H-1117 and hybrid RCH 134 BG II). Whitefly exhibited three nymphal instars and a pupal stage before reaching the adult stage. The fecundity varied from 34–49 and 45–69 eggs per female on cotton variety and cotton hybrid, respectively. Total life cycle from egg to adult was varied from 19–28 and 18–27 days on cotton variety and hybrid, respectively.