author(s)
Sangavi R, Radadia GG and Abhishek Shukla

abstract
Population dynamics of Tetranychus urticae on french bean revealed that the populations of T. urticae was initiated from the fourth week of March during 13^th SMW with 0.30 mite per 2cm² area and reached its peak during 22^nd SMW with 15.90 mites per 2cm². The abundance of T. urticae was significant and positively correlated with minimum temperature (r = 0.921), average temperature (r = 0.899), evening relative humidity (r = 0.820), average relative humidity (r = 0.773) and wind speed (r = 0.892). Whereas, non significant and positive correlation with maximum temperature (r = 0.221), morning relative humidity (r = 0.251) and sunshine hours (r = 0.508). The regression equation revealed that the adjusted coefficient of determination explaining 83.30 per cent variation in mean population densities of T. urticae due to contribution of minimum temperature.