DEEPAK KUMAR, ANKIT KUMAR, MAHA SINGH JAGLAN AND SURENDER SINGH YADAV
Department of Entomology, CCS HAU-Hisar (Haryana), India
Coordinator, KVK, Karnal-132001
(e-mail: Ankitzood522@gmail.com)
(Received : 15 June 2023; Accepted : 29 June 2023)
SUMMARY
Population dynamics of Spodoptera frugiperda (J.E. Smith) were studied at CCS Haryana Agricultural University, Regional Research Station, Uchani, Karnal on maize hybrid HQPM 1. The meteorological parameters observed during the investigation have been correlated with population of the pest. The infestation by S. frugiperda during 2020 varied from 9.3 to 79.1 per cent from 28th to 40th SMW (2nd week of July to 1st week of October). In the present investigations, larval population had a significant positive correlation with evening relative humidity (r = 0.652) and significant negative correlation with sun shine hours (r = -0.634). Average plant infestation had a non-significant positive correlation with morning relative humidity (r = 0.48).
Key words: Population, Spodoptera frugiperda, weather parameters, correlation, maize