Hostname: page-component-78c5997874-8bhkd Total loading time: 0 Render date: 2024-11-14T05:22:57.128Z Has data issue: false hasContentIssue false
  • English
  • Français

Life tables for american bollworm, Heliothis armigera Hubner on four species of cotton under field conditions

Published online by Cambridge University Press:  19 September 2011

R. Nanthagopal  and
S. Uthamasamy
R. Nanthagopal
Affiliation:
Department of Agricultural Entomology, Tamil Nadu Agricultural University, Coimbatore 641 003, Tamil Nadu, India
S. Uthamasamy
Affiliation:
Department of Agricultural Entomology, Tamil Nadu Agricultural University, Coimbatore 641 003, Tamil Nadu, India
Get access

Abstract

—Life table studies of American bollworm Heliothis armigera Hubner on four species of cotton revealed that maximum mortality in the population occurred early in the life cycle. Predation and dispersal accounted for maximum mortality of early instars, whereas migration and unknown reasons accounted for maximum mortality of late instars. Considering the life tables on four varieties of cotton, the loss of population during the first instar was significantly high in K8 and TKHe 44 whereas in Suvin and MCU 9 the loss was less.

Keywords

Life tablemortalitycohortsurvivorshippredationdispersal
Type
Research Articles
Information
International Journal of Tropical Insect Science , Volume 10 , Issue 4 , August 1989 , pp. 521 - 530
Copyright
Copyright © ICIPE 1989

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Bilapate, G.G. (1981) Investigations on Heliothis armigera Hubner in Marathwada XXVIII. Key mortality factors on cotton, pigeonpea, chickpea. Proc. Indian Nat. Sci. Acad. 47B, 637–646.Google Scholar
Bilapate, G.G. (1983) Investigation on Heliothis armigera (Hubner) in Marathwada XIX. Field studies on larval and pupal parasites. J. Maharashtra agric. Univ., 6, 199–202.Google Scholar
Bhatnagar, V.S. and Davies, J.C. (1978) Factors affecting population of gram pod borer Heliothis armigera Hubner in the period 1974–77 at Patancheru (Andhra Pradesh). Presented at the Oriental Entomology Workshop on Population Ecology in Relation to Insects of Economic Importance, 18–20 Jan., 1978, Bangalore, India.Google Scholar
Dhandapani, N. and Balasubramanian, M. (1979) Life table for gram pod borer, Heliothis armigera (Hubner) (Noctuidae: Lepidoptera) on cotton. J. Entomol.Res. 3, 186–190.Google Scholar
Gupta, M., Siripala, P.D. and Pawar, A.D. (1984) Biological control of tomato fruit borer, Heliothis armigera (Hubner) using release of egg parasite (Tricho gramma spp.). Plant Prot. Bull. Govt. India. 36, 29–31.Google Scholar
Harcourt, D.G. (1969) The development and use of life tables in the study of natural insect populations. A. Rev. Entomol. 14, 176–196.CrossRefGoogle Scholar
Hutchison, W.D. and Hogg, D.B. (1984) Demographic statistics for the pea aphid (Homoptera: Aphididae) in Wisconsin and a comparison with other populations. Environ. Entomol. 13, 1173–1181.CrossRefGoogle Scholar
Mabbett, T.H., Darcepat, P. and Nachapang, M. (1980) Behaviour studies on H. armigera Hubner and their application to scouting techniques for cotton in Thailand. Trop. Pest Manage. 26, 268–273.CrossRefGoogle Scholar
Manson, R.R. (1976) Life table studies for a declining population of the Douglas fir tussock moth in north eastern Oregon. Ann. Entomol. Soc. Am. 69, 948–958.CrossRefGoogle Scholar
Nanthagopal, R. and Uthamasamy, S. (1989) Life tables for spotted bollworm, Earias vitella (Fabricius), on lour species of cotton. Crop Prot. 8, 133–136.CrossRefGoogle Scholar
Pawar, C.S., Bhatnagar, V.S. and Jadhav, D.R. (1985) Heliothis species and their larval parasitoids on sole and intercrop of safflower in India. Insect. Sci. Applic. 6, 701–704.Google Scholar
Thontadarya, T.S., Hanumanna, M. and Rao, K. (1978) Record of Trichogramma australicum on the eggs of the Heliothis armigera (Hub.) infesting bhendi Abelmoschus esculentus (H). Curr.Res. 7, 206–207.Google Scholar
Varley, G.C., Gradwell, G.R. and Hassel, M.P. (1973) Insect Population Ecology—Analytical Approach. University of California Press, Berkeley.Google Scholar
Varley, G.C. and Gradwell, G.R. (1960) Key mortality factors in population studies. J. Anim. Ecol. 29, 399–401.CrossRefGoogle Scholar
Yadav, D.N. (1980) Studies of natural enemies of Heliothis armigera (Hub.) and its biological control using egg parasite Trichogramma australicum. GAU Res. J. 6, 62–63.Google Scholar
Yadav, D.N. and Patel, R.C. (1981) Egg parasites of Heliothis armigera (Hub.) in Gujarat. GAU. Res. J. 7, 19–22.Google Scholar