Insecticide resistance in field populations of tobacco caterpillar, Spodoptera litura Fabricius (Lepidoptera: Noctuidae)

Authors

  • Pattapu Sreelakshmi Department of Agricultural Entomology, College of Agriculture, Kerala Agricultural University, Vellayani, Thiruvananthapuram 695 522, Kerala, India.
  • Thomas Biju Mathew Department of Agricultural Entomology, College of Agriculture, Kerala Agricultural University, Vellayani, Thiruvananthapuram 695 522, Kerala, India.
  • Pooru Muralikrishna Department of Agricultural Entomology, College of Agriculture, Kerala Agricultural University, Vellayani, Thiruvananthapuram 695 522, Kerala, India.
  • Ambily Paul Department of Agricultural Entomology, College of Agriculture, Kerala Agricultural University, Vellayani, Thiruvananthapuram 695 522, Kerala, India.

Keywords:

Spodoptera litura, insecticide resistance, insecticides

Abstract

Assessment of insecticide resistance in field populations of Spodotera litura collected from three districts of Kerala against certain commonly used insecticide molecules like chlorpyriphos, quinalphos, lambda cyhalothrin and cypermethrin showed that population collected from Aleppy was found to be susceptible for all the chemicals tested with resistance ratio -1, population collected from Thiruvananthapuram was found to be resistant with resistance ratios of 6.14, 2.46, 8.50 and 6.47 respectively followed by Pathanamthitta with resistance ratios of 2.62, 1.03, 2.29 and 1.34 for chlorpyriphos, quinalphos, lambda cyhalothrin and cypermethrin respectively.

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Published

2017-03-31

How to Cite

Sreelakshmi, P., Mathew, T. B., Muralikrishna, P., & Paul, A. (2017). Insecticide resistance in field populations of tobacco caterpillar, Spodoptera litura Fabricius (Lepidoptera: Noctuidae). ENTOMON, 42(1), 41–46. Retrieved from http://entomon.in/index.php/Entomon/article/view/250

Issue

Vol. 42 No. 1 (2017)

Section

Articles