Influence of climate change on Helicoverpa armigera (Hubner) in pigeonpea

Authors

  • B L Jakhar
  • N Singh
  • S Venilla
  • M H Patel
  • M V Vekaria
  • B D Patel
  • B Panickar

Keywords:

Population dynamics, Helicoverpa armigera, weather parameters

Abstract

Annual monitoring of the population dynamics of Helicoverpa armigera in unprotected pigeonpea crop during kharif seasons of 2011 to 2014 for 4 years at the farmers field North Gujarat, India. Temperature, rainfall and host-plant species were analyzed with respect to population fluctuation of the insect pest. The observations revealed that, the average number of larval population per plant in the season (from 27th to 3rd standard weeks) was 0.97, 0.32, 0.30 and 0.38 larvae/plant during 2011, 2012, 2013 and 2014 respectively. Population of Helicoverpa armigera had significant and negative correlation with maximum temperature (r= -0.524), rainfall (r= 0.079) and relative humidity (r= -0.827, r= -0.595 morning and evening, respectively).

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Author Biographies

B L Jakhar

Assistant Research Scientist (Entomology), Pulse Research Station, Sardarkrushinagar Dantiwada Agricultural University, Sardarkrushinagar - 385 506 IN

N Singh

Associate. Research Scientist (Plant Pathology), Pulse Research Station, Sardarkrushinagar Dantiwada Agricultural University, Sardarkrushinagar - 385 506 IN

S Venilla

Principal Scientist, ICAR-NCIPM, L.B.S. Building, Pusa Campus, New Delhi - 110 012, India

M H Patel

Research Scientist (Pulses), Pulse Research Station, Sardarkrushinagar Dantiwada Agricultural University, Sardarkrushinagar - 385 506 IN

M V Vekaria

Research Scientist (Entomology), Pulse Research Station, Sardarkrushinagar Dantiwada Agricultural University, Sardarkrushinagar - 385 506 IN

B D Patel

Assistant Research Scientist (Plant Pathology), Pulse Research Station, Sardarkrushinagar Dantiwada Agricultural University, Sardarkrushinagar - 385 506 IN

B Panickar

Assistant Research Scientist (Entomology), Pulse Research Station, Sardarkrushinagar Dantiwada Agricultural University, Sardarkrushinagar - 385 506 IN

References

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Published

2016-12-30

How to Cite

Jakhar, B. L., Singh, N., Venilla, S., Patel, M. H., Vekaria, M. V., Patel, B. D., & Panickar, B. (2016). Influence of climate change on Helicoverpa armigera (Hubner) in pigeonpea. Journal of Agriculture and Ecology, 2(2), 25–31. Retrieved from https://journals.saaer.org.in/index.php/jae/article/view/21