Vol. 11, Special Issue 10 (2022)

Author(s):
Mohd Danish and Kamin Alexander

Abstract:
Seasonal incidence of brinjal shoot and fruit borer (Leucinodes orbonalis) on brinjal crop were studied during Kharif season 2019-2021 on brinjal variety Pusa Purple long at central research field, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj. The research farm is situated on the right side of Prayagraj. The maximum numbers of larvae were commenced from July third standard week on shoot with an average 1.2% infestation. The borer populations increased gradually reach peak level 4.25% larval population and decline in the trends was noticed this may be due to fail congenial weather parameter. The incidence of brinjal shoot and fruit borer was recorded by counting total number of shoots and fruits with damaged once. The weather parameters were recorded weekly. The correlation of between the L. orbonalis population and weather parameters showed that infestation was negatively and non-significantly correlated with the maximum temperature (r-0.410). Non-significant but negative correlation was recorded between infestations with minimum temperature (r-0.254). The incidence of L. orbonalis on brinjal showed significant positive correlation with the maximum temperature, sunshine and evening humidity. While the minimum temperature in the morning, relative humidity, rainfall and wind velocity recorded non-significant negative correlation.