Studies on the Effect of Abiotic Factors on the Larval Population of Diamondback Moth (Plutella xylostella L.) on Cauliflower

The field experiments on the effect of abiotic factors on larval population of Diamondback Moth was conducted at research field of Khanpur, block Pataudi of district Gurugram, Haryana during two rabi seasons i.e., 2017-2018 and 2018-2019. Data revealed that the Diamondback Moth, P. xylostella population (0.33) appeared in first week of October (41st standard week) and gradually reached up to maximum level of 8.33 Diamondback Moth larvae/05 plants during third week of December (50thstandard week) during 2017-2018 however it appeared in second week of October (42nd standard week) (1.33) and gradually reached up to maximum level of 8.67 Diamondback Moth larvae/05 plants during second week of December (49th standard week) during the year 2018-2019.