1Division of Agronomy, Faculty of Agriculture, Wadura Sopore, Sher-e-Kashmir University of Agricultural Sciences and Tech. of Kashmir, Sopore193201, UT of Kashmir, India
2Division of Agricultural Economics and Statistics, Faculty of Agriculture, Wadura Sopore, Sher-e-Kashmir University of Agricultural Sciences and Tech. of Kashmir, Sopore193201, UT of Kashmir, India
Division of Entomology, Faculty of Agriculture, Wadura Sopore, Sher-e-Kashmir University of Agricultural Sciences and Tech. of Kashmir, Sopore193201, UT of Kashmir, India
*Email: liyaqatayoub@gmail.com (corresponding author)
Online Published on 11 July, 2023.
This study on the population dynamites of pod borer Helicoverpa armigera (Hubn.) on soybean revealed that it appeared from 29th Standard meteorological week (SMW) (0.40± 0.10 three leaves/ plant). It increased and reached its peak level of 2.67± 0.17/ 3 leaves/ plant during 33rd SMW. The declining trend was observed and reached 0.60± 0.13/ 3 leaves/ plant during 40th SMW. The peak infestation was 48% during 35th SMW. The incidence exhibited non-significant positive correlation with maximum (r= 0.227) and minimum temperature (r= 0.335) and evening relative humidity (RH) (r=0.315); and a significant positive one with morning RH (r= 0.599) and significant negative one with rainfall (r= -0.42). The sunshine was found to be negatively and non-significantly correlated (r = -0.069).
Helicoverpa armigera, Infestation, Incidence, Relative humidity, Temperature, Rainfall, Sunshine hours, Correlation coefficients, Seasonal incidence
