author(s)
Rohit Ramesh, MR Dabhi, RG Parmar and DJ Parmar

abstract
Studies on population dynamics of serpentine leaf miner, Liriomyza trifolii (Burgess) on watermelon was conducted at Agronomy farm, B. A. College of Agriculture, Anand Agricultural University, Anand, Gujarat under field condition during late Rabi season 2018-19. The maximum population activity of the pest was observed during the last week of February. It was established that the prevalent temperature had profound effect on the incidence and abundance of L. trifolii. Both maximum and minimum temperatures had favourable impact on the abundance of the pest. It was also noticed that both morning and evening vapour pressure positively influenced the pest incidence. Variants like relative humidity showed a non-significant negative correlation with the pest whereas L. trifolii incidence exhibited a non-significant positive relation with bright sunshine hours and wind speed.