Population Dynamics of Helicoverpa armigera in Chickpea, (Cicer arietinum L.)
Ragni Devi, Umesh Chandra, Pankaj Kumar, Sameer Kumar Singh, Ravi Kumar Rajak
Journal of Advances in Biology & Biotechnology · pp. 389–396 · Published 13 Apr 2024
10.9734/jabb/2024/v27i5798Abstract
The present studies on population dynamics of gram pod borer insect pest were carried out at Students’ Instructional Farm (SIF) of Acharya Narendra Deva University of Agriculture & Technology, Kumarganj, Ayodhya (UP), India during Rabi 2022-23 and 2023-24. The present study revealed that gram pod borer, Helicoverpa armigera was commenced from the first fortnight of November and touched the highest at 8th SMW (2.98 pod borer larvae per plant) and 7th SMW (3.54 pod borer larvae per plant) in both the year, respectively. The population of H. armigera had a non-significant positive correlation with rainfall (r= 0.101) in Rabi 2022-23. The population of H. armigera had a significant positive correlation with wind speed (r= 0.495*) in Rabi 2023-24.
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