Studies on the Effect of Abiotic Factors on the Larval Population of Diamondback Moth (Plutella xylostella L.) on Cauliflower
Bharat Singh *
ICAR-Krishi Vigyan Kendra, Gurugram, Haryana, India and ACBPDM, Amity University, Sector-125, Noida (U.P), India.
Archana U Singh
Division of Nematology, ICAR-IARI, New Delhi, India.
Neetu Singh
ACBPDM, Amity University, Sector-125, Noida (U.P), India.
Gaurav Papnai
ICAR-Krishi Vigyan Kendra, Gurugram, Haryana, India.
S Sudhakar
ICAR-Krishi Vigyan Kendra, Idukki, Kerala, India.
Raghvendra Pratap Singh
ICAR-Krishi Vigyan Kendra, Gurugram, Haryana, India.
*Author to whom correspondence should be addressed.
Abstract
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.
Keywords: Abiotic factors, cauliflower, diamondback moth, relative humidity, temperature, rainfall