Journal of Biological Control

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Predatory Efficiency of Rhynocoris marginatus (Fabricius) (Heteroptera: Reduviidae) on Helicoverpa armigera (Hiibner) and Spodoptera litura (Fabricius)


Affiliations
1 Entomology Research Unit, St. Xavier's College, Palayamkottai 627 002, Tamil Nadu, India
2 Entomology Research Institute, Loyola College, Chennai 600034, Tamil Nadu, India
 

Comparative predatory efficiency of Rhynocoris marginatus (Fabricius) was assessed on two cotton pests namely, Helicoverpa armigera (Hubner) and Spodoptera litura (Fabricius). Gradual increase in prey consumption was recorded by the progression of the developmental stages of the predator. Adult females consumed more than males and consumption decreased with the later prey instars. Among the two prey species, S. litura was more preferred.

Keywords

Helicoverpa armigera, Predatory efficiency, Rhynocoris marginatus, Spodoptera litura.
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  • Predatory Efficiency of Rhynocoris marginatus (Fabricius) (Heteroptera: Reduviidae) on Helicoverpa armigera (Hiibner) and Spodoptera litura (Fabricius)

Abstract Views: 230  |  PDF Views: 126

Authors

P. J. Edward George
Entomology Research Unit, St. Xavier's College, Palayamkottai 627 002, Tamil Nadu, India
R. Seenivasagan
Entomology Research Institute, Loyola College, Chennai 600034, Tamil Nadu, India

Abstract


Comparative predatory efficiency of Rhynocoris marginatus (Fabricius) was assessed on two cotton pests namely, Helicoverpa armigera (Hubner) and Spodoptera litura (Fabricius). Gradual increase in prey consumption was recorded by the progression of the developmental stages of the predator. Adult females consumed more than males and consumption decreased with the later prey instars. Among the two prey species, S. litura was more preferred.

Keywords


Helicoverpa armigera, Predatory efficiency, Rhynocoris marginatus, Spodoptera litura.