Incidence of cotton bollworm (Helicoverpa armigera Hibner) in relation to meterological parameters in the saline zone of West Bengal

Authors

  • ASIS MUKHERJEE Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, Nadia, WB, India
  • P. BHOWMIK Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, Nadia, WB, India

DOI:

https://doi.org/10.54386/jam.v11i2.1246

Keywords:

Cotton bollworm, temperature and relative humidity

Abstract

To study the relationship between weather parameters and the population of Helicoverpa armigera, cotton (cv. LRA- 5166) was grown during January, 2001 at Metakara, 24pgs, W.B. on an area of 500 m2, by adopting full package of practices recommended for the crop in W.B. condition. Result revealed that the H. armigera population has significantly negative correlation with maximum temperature (Max-T, r =-0.78) and significantly positive correlation with afternoon relative humidity (Min-RH, r = 0.80). Result revealed that 30.5 to 32.5 OC Max-T coupled with 65 to 77 % Afternoon-RH caused heavy infestation of the insect in cotton crop.

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Published

01-12-2009

How to Cite

ASIS MUKHERJEE, & P. BHOWMIK. (2009). Incidence of cotton bollworm (Helicoverpa armigera Hibner) in relation to meterological parameters in the saline zone of West Bengal. Journal of Agrometeorology, 11(2), 169–171. https://doi.org/10.54386/jam.v11i2.1246

Issue

Vol. 11 No. 2 (2009): December

Section

Research Paper

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