Vol. 8, Special Issue 8, Part G (2024)

Abstract: The investigation was carried out to know the population dynamics and correlation studies of fall armyworm (FAW), S. frugiperda (J. E. Smith) at Junagadh region. The activity of fall armyworm commenced from 31^st SMW i.e. first week of August (0.98 larva per plant) which gradually increased and attained peak of 5.74 larva per plant during 38^th SMW and reached a minimum during the 46^th SMW (0.21 larva per plant). Thereafter, the pest population started declining in the 4^th week of September with an average of 4.89 larvae per plant at the 39^th SMW. Correlation studies between meteorological parameters and the S. frugiperda larval population showed significant positive correlation with mean temperature, positive correlation with maximum temperature, minimum temperature, bright sunshine hours, morning relative humidity and evening relative humidity and evaporation, whereas non-significant negative correlation with wind speed and rainfall.