The studies on seasonal incidence of citrus butterfly, Papilio demoleus L. on acid lime revealed that maximum temperature (-0.385) showed negative significant association and evening relative humidity (0.497) showed positive significant association with butterfly larval population in citrus during 2015-16. Regression analysis of the citrus butterfly incidence during April 2015-March 2016 indicated that all the weather parameters i.e., maximum temperature, minimum temperature, morning relative humidity, evening relative humidity, rainfall, rainy days, sunshine hours and wind speed together influenced citrus butterfly incidence to the extent of 48.5 per cent (R2=0.485) and regression equation models developed were Y = -41.152 -(1.068) Max Temp -(0.688) Min Temp + (0.002) Mor RH + (0.381) Eve RH + (0.030) Rf + (1.227) Rd - (0.347) Ssh + (0.585) Ws respectively.
