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

abstract
Population dynamics of two spotted red spider mite, Tetranychus urticae on cow pea was initially noticed during 13^th SMW (fourth week of March) with a lowest density of 0.70 mite per 2cm² and increased rapidly and attained its peak at 22^nd SMW (last week of May) with a population density as high as 15.80 mites per 2cm². T. urticae population had significant and positive correlation with minimum temperature (r = 0.947), average temperature (r = 0.940), evening relative humidity (r = 0.840), average relative humidity (r = 0.800) and wind speed (r = 0.880) had significantly positive influence on T. urticae population. Whereas, non significant and positive influence was found with maximum temperature (r = 0.314), morning relative humidity (r = 0.313) and sunshine hours (r = 0.570). The regression equation revealed that the adjusted coefficient of determination explaining 92.30 per cent variation in mean population densities of T. urticae due to contribution of minimum temperature and morning relative humidity.