Seasonal Incidence of Tomato Fruit Borer, Helicoverpa armigera (Hubner) and Its Correlation with Abiotic Factors: An Experimental Investigation

A study on seasonal incidence of the tomato fruit borer, Helicoverpa armigera (Hubner) was conducted under field conditions at Vegetable Research Station, CSAUA&T, Kanpur during Rabi season 2021-2022. The borer commenced in 47th standard week (third November) with an average population 0.2 larvae per m row length. increased and gradually reached its peak level 7.8 length 3rd (January third week), after that, a declining trend observed. As regards abiotic factors, rainfall (r=0.4727), maximum relative humidity (r=0.3306), minimum (r=0.7544) wind speed (r=0.6039) had significant positive correlation population. Maximum temperature (r=-0.7616) (r=-0.6327) are negatively correlated