Hostname: page-component-586b7cd67f-t7czq Total loading time: 0 Render date: 2024-11-26T03:02:33.077Z Has data issue: false hasContentIssue false
  • English
  • Français

Bionomics of an aphidiid parasitoid, Trioxys indicus Subba Rao and Sharma. 35. Influence of food plants on the life table statistics of the parasitoid through its host Aphis gossypii Glover

Published online by Cambridge University Press:  19 September 2011

Neelima Bhatt  and
Rajendra Singh
Neelima Bhatt
Affiliation:
Aphid-Biocontrol Laboratory, Department of Zoology, University of Gorakhpur, Gorakhpur-273 009, India
Rajendra Singh
Affiliation:
Aphid-Biocontrol Laboratory, Department of Zoology, University of Gorakhpur, Gorakhpur-273 009, India
Get access

Abstract

In the present work, influence of food plants on different life table parameters of the parasitoid Trioxys indicus Subba Rao and Sharma was studied as affected through its host Aphis gossypii Glover. Age-specific survival of T. indicus on aphids bred on Lagenaria vulgaris was greater (7 days) than on Luff a cylindrica and Cucurbita maxima (4 days). The net fecundity rate, total reproductive period, intrinsic rate of natural increase, intrinsic rate of total fecundity and weekly multiplication rate of T. indicus fed on L. vulgaris was higher than on other cucurbit food plants. Doubling time of the parasitoid fed on L. vulgaris was lower than on other food plants, whereas the mean generation time of the parasitoid on L. vulgaris was slightly higher than on L. cylindrica but lower than on Cajanus cajan and C. maxima. All these measurements (considered indices of fitness of the entomophages) indicated that population growth pattern of T. indicus fed on L. vulgaris is faster than those fed on other food plants.

Résumé

Ces recherches visent à étudier l'influence exercée par la plante hôte sur dlfferents paramètres entrant dans la table de vie du parasitoïde Trioxys indicus Subba Rao et Sharma en fonction du régime alimentaire de l'hôte Aphis gossypii Glover. L'âge spécifique de survie de T. indicus sur des pucerons élevés sur Lagenaria vulgaris était de 7 jours et supérieur à celui de ceux élevés sur Luffa cylindrica et Cucurbita maxima qui est de 4 jours. Le taux de fécondité net, période totale de reproduction, taux spécifique de croissance naturelle, taux spécifique de fécondité totale et le taux de multiplication hebdomadaire de T. indicus nourri sur L. vulgaris était plus élevé que sur d'autres curcubitacées hôtes. Le laps de temps que le parasitoïde nourri sur L.vulgaris met pour doubler en population était Inférleur à celui observé quand nourri sur d'autres plantes hôtes tandis que le temps moyen de développement d'une génération du parasitoïde sur L. vulgaris était légèrement plus élevé que celui observé avec L. cylindrica mais plus bas que celui noté avec Cajanus cajan et C. maxima. Toutes ces mesures (considérées comme indices de correlation des entomophages) montrent que la population de T. indicus sur L. vulgaris suit une courbe de croissance plus rapide que celle obtenue sur d'autres plantes hôotes.

Keywords

Trioxys indicusfood plantlife tableparasitoidaphidAphis gossypiiLagenaria vulgarisLuffa cylindricaCucurbita maximaCajanus cajanbiological controlTrioxys indicusplante hôtetable de vieparasitoïdepuceronAphis gossypiiLagenaria vulgarisLuffa cylindricaCurcubita maximaCajanus cajanlutte biologique
Type
Research Articles
Information
International Journal of Tropical Insect Science , Volume 12 , Issue 4 , August 1991 , pp. 385 - 389
Copyright
Copyright © ICIPE 1991

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

Agarwala, B. K. (1983) Host range of Trioxys indicus Subba Rao & Sharma in India (Hymenoptera: Aphidiidae). Akitu (New Series) 49, 1–6.Google Scholar
Andrewartha, H. G. and Birch, L. C. (1954) The Distribution and Abundance of Animals. University of Chicago Press, Chicago and London.Google Scholar
Birch, L. C. (1948) The intrinsic rate of natural increase of an insect population. J. Anim. Ecol. 17, 15–26.CrossRefGoogle Scholar
Boyer, J. S. (1982) Plant productivity and environment. Science 218, 443–448.CrossRefGoogle ScholarPubMed
Chowdhry, M. (1990) The impact of host extract on the reproductive behaviour of Trioxys indicus Subba Rao & Sharma (Hymenoptera: Aphidiidae), thermal tolerance of the mummies and identification of the host-stage. Ph.D. Thesis, University of Gorakhpur, Gorakhpur, India.Google Scholar
Cohen, M. B. and Mackauer, M. (1987) Intrinsic rate of increase and temperature coefficients of the aphid parasite (Ephedms californicus) Baker (Hymenoptera: Aphidiidae). Can. Entomol. 119, 231–238.CrossRefGoogle Scholar
Force, D. C. and Messenger, P. S. (1964) Duration of development, generation time and longevity of three hymenopterous parasites of Therioaphis maculata, reared at various constant temperatures. Ann. Entomol. Soc. Am. 57, 405–413.CrossRefGoogle Scholar
Hofsvang, T. and Hagvar, E. B. (1975) Developmental rate, longevity, fecundity and oviposition period of Ephedrus cerasicola Stary (Hymenoptera: Aphidiidae) parasitizing Myzuspersicae Sulz. (Homoptera: Aphididae) on paprika. Norw. J. Entomol. 22, 15–22.Google Scholar
Hulpas-Jordaan, P. M. and van Lenteren, J. C. (1978) The relationship between host plant leaf structure and parasitization efficiency of the parasitic wasp Encarsia formosa Gahan (Hymenoptera: Aphelinidae). Med. Fac. Landbouww. Rijksuniv. Gent 43, 431–440.Google Scholar
Luck, R. F. and Podoler, H. (1985) Competitive displacement of Aphytis lingnanensis by A. melinus: The role of host size and female progeny production. Ecology 66, 904–913.CrossRefGoogle Scholar
Mackauer, M. (1983) Quantitative assessment of Aphidius smithi (Hymenoptera: Aphidiidae). Fecundity, intrinsic rate of increase and functional response. Can. Entomol. 115, 399–415.CrossRefGoogle Scholar
Masao, F. and Takada, H. (1988) Fecundity, oviposition period and longevity of Diaeretiella rapae (M'Intosh) and Aphidius gifuensis Ashmead (Hymenoptera: Aphidiidae), two parasitoids of Myzus persicae (Sulzer) (Homoptera: Aphididae). Jpn. J. Appl. Entomol. Zool. 32, 330–331.Google Scholar
Messenger, P. S. (1964) Use of life-tables in a bioclimatic study of experimental aphid braconid wasp host-parasite system. Ecology 45, 119–131.CrossRefGoogle Scholar
Obrycki, J. J. and Tauber, M. J. (1984) Natural enemy activity on glandular pubescent potato plants in the greenhouse: An unreliable predictor of effects in the field. Environ. Entomol. 13, 679–683.CrossRefGoogle Scholar
Pandey, R. K., Singh, R. and Singh, T. B. (1984) Bionomics of Trioxys indicus, an aphidiid parasitoidof Aphis craccivora. 18. Fecundity, oviposition period, duration of development, longevity and sex ratio of the parasitoid. Entomol. 9, 239–245.Google Scholar
Plucknett, D. L. and Smith, N. J. H. (1982) Agricultural research and third world food production. Science 111, 215–220.CrossRefGoogle Scholar
Price, P. W. (1984) Insect Ecology. 2nd edition. John Wiley & Sons, New York.Google Scholar
Singh, R. and Srivastava, P. N. (1989) Life-table studies of an aphid hyperparasitoid Alloxysta pleuralis (Cameron) (Hymenoptera: Alloxystidae). J. Appl. Entomol. 107, 351–356.CrossRefGoogle Scholar
Singh, R. and Tripathi, R. N. (1987) Records of aphid parasitoids from Terai belt of Eastern Uttar Pradesh-1. J. Aphidol. 1, 89–92.Google Scholar
Tripathi, R. N. and Singh, R. (1990) Fecundity, reproductive rate and intrinsic rate of increase of an aphidiid parasitoid Lysiphlebia mirzai Shuja-Uddin (Hymenoptera: Aphidiidae). Entomophaga 35, 601–610.CrossRefGoogle Scholar
Woets, J. and van Lenteren, J. C. (1976) The parasite-host relationship between Encarsia formosa (Hymenoptera: Aphidiidae) and Trialurodes vaporarium (Homoptera: Aleyrodidae). VI. The influence of the host plant on the greenhouse whitefly and its parasite Encarsia formosa. Progr. Integrated Contr. Glasshouses, Bull. SROP. 4, 151–164.Google Scholar