Effect of Abiotic Factors on Seasonal Incidence of Shoot and Fruit Borer [Eariasvittella (Fabricius)] on Okra

Abstract

A study on the seasonal incidence of the shoot and fruit borer [Eariasvittella(Fabricius)] on okra in relation to abiotic factors was carried out at the Central field, SamHigginbottom University of Agriculture Technology and Sciences, Prayagraj, Uttar Pradesh, India, during Kharif season. Results revealed that the occurrence of shoot and fruit borer (Eariasvitella) commenced from the third week of September with an average infestation of 4.98%, and then the population gradually increased and reached to its peak level by the third week of October with an average population of 40.12%. After that a declining trend was observed as temperature decreased. It was found that the infestation of shoot and fruit borer (Eariasvitella) increased with increasing maximum temperature.