An experiment was carried out during Rabi season 2021-22 at a local farm in the Jodhpur region in Rajasthan on major insect pest of brinjal. The infestation of the leafhopper was a minimum of 16/3 leaves/ plant in the 10thSW of 2022 and a maximum of 108/3 leaves/plant in the 51th SW of 2021.The infestation of whitefly was a minimum of 9.2/3 leaves/plant in the 10thSW of 2022 and a maximum of 46/3 leaves/plant in the 1th SW of 2022.The mean population of whitefly had significant negative correlation with temperature while significant positive with average relative humidity. The mean population of leafhopper had significant negative correlation with maximum temperature while non-significant positive with mean relative humidity and average temperature, negative with minimum temperature.