Annals of Plant Protection Sciences

The mealy bug infestation was recorded in 3^rd week of January and reached a peak level 17.40 nymph and adult/6 leaves/plant in 2^nd week of February when the temperature ranged between 29.4–10°C and RH 74–33.7%. Correlation coefficient values for mealy bug incidence and weather parameters showed that maximum temperature had positive influence on mealy bug population. While, lace bug infestation was recorded in 2^nd week of March and reached a peak level 14.93 N&A/6 leaves/plant in 4^th week of March when the temperature ranged between 38.4–16.8°C and RH 45–21.4%. Correlation coefficient values for lace bug incidence and weather parameters showed that maximum and minimum RH besides rainfall had negative influence on lace bug population and the population dynamics of Brinjal shoot and fruit borer (BSFB) in the brinjal crop was estimated in the form of adults and larval and adults population was recorded in 1^st week of December and reached a peak level 42 adults/week in 2^nd week of January when the temperature ranged between 22-6.5°C and RH 85–47.2% while, larval population was recorded in 2^nd week of December and reached a peak level (37 larvae/5 fruits) in 4^th week of January when the temperature ranged between 26.9–9.3°C and RH 83–51.8%. Correlation coefficient values for BSFB adults and larval population incidence and weather parameters showed that maximum RH had positive influence on BSFB adults and larvae.