Vol. 10, Special Issue 7 (2021)

Author(s):
VS Rajput, AR Naqvi, VS Acharya and DS Meena

Abstract:
The experiment was conducted during Rabi, 2018 -19 and 2019-20 at the experimental area of Instructional Farm, College of Agriculture, S.K.R.A.U., and Bikaner. The cabbage crop was found to be infested by diamondback moth, P. xylostella first appeared on the crop in the first week of December. Maximum number of larvae was observed during first week of February and thereafter, the population started declining. There was a significant negative association of P. xylostella population with maximum and minimum temperature. The influence of morning relative humidity and evening relative humidity was significant positive on the larval population build up. Though, the rainfall had non-significant effect on larval population build up. More or less same order of correlation was observed during 2019-2020.