Impact of weather aspects on the prevalence and correlation of okra shoot and fruit borer (Earias vittella Fab.) during summer season

Abstract

Field experiment was carried out with an aspect to scrutinize the seasonal incidence of okra shoot and fruit borer at odds with prevailing weather criterions at Horticultural field, BTC College of Agriculture, Raipur during summer 2018. The outcomes revealed that the prevalence of the pest was noticed on shoot during 10th standard meteorological week (3.45%) and reached to its peak infestation (5.00%) during the second week of March. Initial fruit infestation (6.89%) was descry during the third week of March and thereafter the infestation level gradually increased and reached to highest infestation (43.41%) during second week of April. Fruit infestation caused by okra shoot and fruit borer was significantly positively correlated with maximum temperature (r =0.66), minimum temperature (r =0.63), average temperature (r=0.66) and sun shine hours per day (0.57) and non –significantly positive correlated with rainfall (r=0.37) and evening relative humidity (r=0.22) and non- significantly negatively correlated with morning relative humidity (r =-0.33).