Journal of Biological Control

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Impact of Intraspecific Competition on the Predation of Irantha armipes (Stal) (Hemiptera: Reduviidae) on Cotton Bollworm, Helicoverpa armigera (Hubner)


Affiliations
1 Department of Zoology, Scott Christian College, Nagercoil 629003, Tamil Nadu, India
2 Entomology Research Unit, St. Xavier’s College, Palayankottai 627 002, Tamil Nadu, India
 

Intraspecific competition was found to affect the predation of assassin bug, Irantha armipes (Stal) on cotton bollworm Helicoverpa armigera (Hübner) and quickened predatory acts such as capturing, paralyzing and sucking with reduction in the number of piercing and sucking sites. The impact of competition on predation increased in proportion to the number of competitors confronted.

Keywords

Assassin Bug, Irantha armipes, Intraspecific Competition, Predation, Helicoverpa armigera.
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  • Impact of Intraspecific Competition on the Predation of Irantha armipes (Stal) (Hemiptera: Reduviidae) on Cotton Bollworm, Helicoverpa armigera (Hubner)

Abstract Views: 245  |  PDF Views: 147

Authors

S. Sam Manohar Das
Department of Zoology, Scott Christian College, Nagercoil 629003, Tamil Nadu, India
A. Ganesh Kumar
Entomology Research Unit, St. Xavier’s College, Palayankottai 627 002, Tamil Nadu, India
Dunston P. Ambrose
Entomology Research Unit, St. Xavier’s College, Palayankottai 627 002, Tamil Nadu, India

Abstract


Intraspecific competition was found to affect the predation of assassin bug, Irantha armipes (Stal) on cotton bollworm Helicoverpa armigera (Hübner) and quickened predatory acts such as capturing, paralyzing and sucking with reduction in the number of piercing and sucking sites. The impact of competition on predation increased in proportion to the number of competitors confronted.

Keywords


Assassin Bug, Irantha armipes, Intraspecific Competition, Predation, Helicoverpa armigera.

References