Study of Weather Factors and Population of Bimisia Tabaci Genn. and Oxycarenus Laetus Kirby at Bharwari, Distt. Kaushambi, Uttar Pradesh

Abstract

The population growth curve of the Oxycarenus Laetus Kirby was found to be J-shaped. The population increased slowly and thereafter at fast rate. The post was reckoned to be major pest. Coefficients of correlation between incidence of dusky cotton bug and maximum temperature was found to be +0.921 and between the former and the minimum temperature calculated to be +0.845. Flower, the former was correlated to both the maximum relative humidity (r= -0.925) and minimum (r=-0.750) relative humidity. Bimisia Tabaci Genn., the small white fly was found to be dusted white waxy powder.