author(s)
Kanjiya RR, Shah KD, Talaviya JR, Patil VM and Chudasama KA

abstract
Population dynamics of aphids have been studied under field condition at Instructional Farm, Department of Agronomy, College of Agriculture, JAU, Junagadh during Rabi season, 2015-16 in fennel crop. The activity of aphid, H. coriandri was commenced from 2^nd week of February and remained up to 3^rd week of March having peak during 4^th week of February in fennel crop. Simultaneously, higher population of coccinellids was observed during 4^th week of January to 3^rd week of March and showed significantly highly positive correlation with aphid population in fennel crop.