Vol. 11, Special Issue 9 (2022)

Author(s):
N Yamini Sousheel, Bharati N Bhat, G Uma Devi, KN Yamini and G Sridevi

Abstract:
Field experiments were conducted during Rabi 2019-20 and Rabi 2020-21 at Warangal and Rajendranagar respectively as an attempt to investigate the effect of different weather factors on the population of whiteflies which are predominant vectors for chilli leaf curl complex. Weather data for both the crop seasons were collected and correlated with the whitefly population. The correlation analysis for whitefly population with weather parameters during Rabi 2019-20 and 2020-21 indicated that there existed positive and significant correlation of whiteflies with minimum temperature, morning humidity and wind velocity; but negative correlation with evening relative humidity and sunshine hours. Regression analysis between whitefly population and weather parameters indicated that minimum temperature and wind velocity accounted for 39 and 46 percent total variation in whitefly population in both the seasons respectively.