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Interspecific host discrimination and within-host competition between Encarsia formosa and E. pergandiella (Hymenoptera: Aphelinidae), two endoparasitoids of whiteflies (Hemiptera: Aleyrodidae)

Published online by Cambridge University Press:  09 March 2007

P.A. Pedata*
Affiliation:
Istituto per la Protezione delle Piante (IPP), CNR, Sezione di Portici, via Università 133, 80055 Portici, Napoli, Italy
M. Giorgini
Affiliation:
Istituto per la Protezione delle Piante (IPP), CNR, Sezione di Portici, via Università 133, 80055 Portici, Napoli, Italy
E. Guerrieri
Affiliation:
Istituto per la Protezione delle Piante (IPP), CNR, Sezione di Portici, via Università 133, 80055 Portici, Napoli, Italy
*
*Fax: +39 081 7758122 E-mail: [email protected]

Abstract

Interspecific host discrimination and within-host competition between Encarsia formosa Gahan and Encarsia pergandiella (Howard), two endoparasitoids of whiteflies, were studied under laboratory conditions. Interspecific host discrimination was studied at two time intervals (0 h and 72 h after the first species had oviposited). Parasitized and unparasitized Trialeurodes vaporariorum (Westwood) hosts were accepted for oviposition at the same rate by the two parasitoid species. Host type did not affect the handling time of the two parasitoids. The outcome of within-host competition was investigated after females of the two species parasitized the hosts at various time intervals. In four treatments, E. pergandiella was allowed to oviposit 0, 24, 48 and 72 h after E. formosa while in the other two, E. formosa was allowed to oviposit 0 and 72 h after E. pergandiella. In four of these treatments: E. formosa following E. pergandiella at 0 and 72 h, and E. pergandiella following E. formosa at 0 and 24 h, E. pergandiella prevailed. In the host discrimination experiment (72 h interval), 20% of E. pergandiella eggs were killed by E. formosa females. Interspecific ovicide was also observed in the within-host competition experiment, in which 6% of 72-h-old E. pergandiella eggs were killed by E. formosa females.

Type
Research Article
Copyright
Copyright © Cambridge University Press 2002

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References

Arakawa, R. (1987) Attack on the parasitized host by a primary solitary parasitoid, Encarsia formosa (Hymenoptera: Aphelinidae): the second female pierces with her ovipositor the egg laid by the first one. Applied Entomology and Zoology 22, 644645.CrossRefGoogle Scholar
Babcock, C.S., HeratyJ.M., De J.M., De, Barro, P.J., Driver, F. & Schmidt, S. (2001) Preliminary phylogeny of Encarsia Förster (Hymenoptera: Aphelinidae) based on morphology and 28S rDNA. Molecular Phylogenetics and Evolution 18, 306323.CrossRefGoogle ScholarPubMed
Bakker, K., van Alphen, J.J.M., van Batenburg, F.H.D., van der Hoeven, N., Nell, H.W., van Strien-van Liempt, W.T.F.H., & Turlings, T.C.J. (1985) The function of host discrimination and superparasitisation in parasitoids. Oecologia 67, 572576.CrossRefGoogle ScholarPubMed
Baldanza, F., Gaudio, L. & Viggiani, G. (1999) Cytotaxonomic studies of Encarsia Förster (Hymenoptera: Aphelinidae). Bulletin of Entomological Research 89, 209215.CrossRefGoogle Scholar
Bolter, C.J. & Laing, J.E. (1983) Competition between Diadegma insulare (Hymenoptera: Ichneumonidae) and Microplitis plutellae (Hymenoptera: Braconidae) for larvae of the diamondback moth, Plutella xylostella (Lepidoptera: Plutellidae). Proceedings of the Entomological Society of Ontario 114, 110.Google Scholar
Briggs, C.J. & Collier, T.R. (2001) Autoparasitism, interference, and parasitoids–pest population dynamics. Theoretical Population Biology 60, 3357.CrossRefGoogle ScholarPubMed
Buckner, J.S., Poprawski, T.J., Jones, W.A. & Nelson, D.R. (2000) Effect of whitefly parasitoids on the cuticular lipid composition of Bemisia argentifolii (Homoptera: Aleyrodidae) nymphs. Archives of Insect Biochemistry and Physiology 44, 8289.3.0.CO;2-4>CrossRefGoogle ScholarPubMed
Bujis, M.J., Pirovano, I. & van Lenteren, J.C. (1981) Encarsia pergandiella, a possible biological control agent of the greenhouse whitefly, Trialeurodes vaporariorum. A study on intra- and interspecific host selection. Mededelingen van de Faculteit Landbouwwetenschappen Rijksuniversiteit (Gent) 46, 465475.Google Scholar
Chow, F.J. & Mackauer, M. (1984) Inter- and intraspecific larval competition in Aphidius smithi and Praon pequodorum (Hymenoptera: Aphidiidae). Canadian Entomologist 116, 10971107.CrossRefGoogle Scholar
Collier, T.R. & Hunter, M.S. (2001) Lethal interference competition in the whitefly parasitoids Eretmocerus eremicus and Encarsia sophia. Oecologia 129, 147154.CrossRefGoogle ScholarPubMed
Collier, T.R., Kelly, S.E. & Hunter, M.S. (2002) Egg size, intrinsic competition, and lethal interference in the parasitoids Encarsia pergandiella and Encarsia formosa. Biological Control 23, 254261.CrossRefGoogle Scholar
DeBach, P. & Rosen, D. (1981) A new genus and species of Aphelinidae with some synonimies, a rediagnosis of Aspidiotiphagus and a key to pentamerous and heteromerous Prospaltellinae (Hymenoptera: Chalcidoidea: Aphelinidae). Proceedings of the Entomological Society of Washington 83, 658679.Google Scholar
Donnell, D. & Hunter, M.S. (2002) Developmental rates of two congeneric parasitoids, Encarsia formosa and Encarsia pergandiella (Hymenoptera: Aphelinidae), utilizing different egg provisioning strategies. Journal of Insect Physiology 48, 487493.CrossRefGoogle ScholarPubMed
Ehler, L.E. (1990) Introduction strategies in biological control of insects. pp 111134. in Mackauer, M., Ehler, L.E. & Roland, J. (Ed.) Critical issues in biological control. Andover, UK, Intercept.Google Scholar
Gabarra, R., Arnò, J., Alomar, O. & Albajes, R. (1999) Naturally occurring populations of Encarsia pergandiella (Hymenoptera: Aphelinidae) in tomato greenhouses. IOBC–WPRS Bulletin 22(1), 8588.Google Scholar
Gerling, D. (1966) Studies with whitefly parasites of southern California. I. Encarsia pergandiella Howard (Hymenoptera: Aphelinidae). Canadian Entomologist 98, 707724.CrossRefGoogle Scholar
Godfray, H.C.J. (1994) Parasitoids. Evolutionary and behavioural ecology. 473 pp. Princeton, New Jersey, Princeton University Press.CrossRefGoogle Scholar
Hayat, M. (1983) The genera of Aphelinidae (Hymenoptera) of the world. Systematic Entomology 8, 63102.CrossRefGoogle Scholar
Heinz, K.M. & Nelson, J.M. (1996) Interspecific interactions among enemies of Bemisia in an inundative biological control program. Biological Control 6, 384393.CrossRefGoogle Scholar
Heinz, K.M. & Parrella, M.P. (1998) Host location and utilization by selected parasitoids of Bemisia argentifolii (Homoptera: Aleyrodidae): implications for augmentative biological control. Environmental Entomology 27, 774784.CrossRefGoogle Scholar
Hoddle, M.S., Van Driesche, R.G. & Sanderson, J.P. (1998) Biology and use of the whitefly parasitoid Encarsia formosa. Annual Review of Entomology 43, 645669.CrossRefGoogle ScholarPubMed
Hunter, M.S. (1989) Sex allocation and egg distribution of an autoparasitoid, Encarsia pergandiella (Hymenoptera: Aphelinidae). Ecological Entomology 14, 5767.CrossRefGoogle Scholar
Hunter, M.S. (1993) Sex allocation in a field population of an autoparasitoid. Oecologia 93, 421428.CrossRefGoogle Scholar
Hunter, M.S. & Woolley, J.B. (2001) Evolution and behavioral ecology of heteronomous aphelinid parasitoids. Annual Review of Entomology 46, 251290.CrossRefGoogle ScholarPubMed
Hunter, M.S., Collier, T.R. & Kelly, S.E. (2002) Does an autoparasitoid disrupt host suppression provided by a primary parasitoid? Ecology 83, 14591467.CrossRefGoogle Scholar
Kajita, H. & van Lenteren, J.C. (1982) The parasite–host relationship between Encarsia formosa Gah. (Hymenoptera: Aphelinidae) and Trialeurodes vaporariorum (Westw.) (Homoptera: Aleyrodidae). XIII. Effect of low temperatures on egg maturation of Encarsia formosa. Zeitschrift für Angewandte Entomologie 93, 430439.CrossRefGoogle Scholar
Loomans, A.J.M. & van Lenteren, J.C. (1999) Evaluating environmental effects of Encarsia (Hymenoptera: Aphelinidae) introduced for whitefly control in Europe. IOBC–WPRS Bulletin 22(1), 153156.Google Scholar
Mackauer, M. (1990) Host discrimination and larval competition in solitary endoparasitoids. pp 4162. in Mackauer, M., Ehler, L.E. & Roland, J. (Ed.) Critical issues in biological control. Andover, UK, Intercept.Google Scholar
Mazzone, P. & Viggiani, G. (1985) Nuovi dati sull'Encarsia pergandiella (Hym.: Aphelinidae), parassita esotico introdotto in Italia contro il Trialeurodes vaporariorum (Westw.) (Hom.: Aleyrodidae). Atti XIV Congresso Nazionale Italiano di Entomologia, Palermo-Erice-Bagheria. pp. 855859.Google Scholar
McBrien, H. & Mackauer, M. (1990) Heterospecific larval competition and host discrimination in two species of aphid parasitoids: Aphidius ervi and Aphidius smithi. Entomologia Experimentalis et Applicata 56, 145153.CrossRefGoogle Scholar
Mills, N.J. (1994) Biological control: some emerging trends. pp 213222. in Leather, S.R., Walters, K.F.A., Mills, N.J. & Watt, A.D. (Ed.) Individuals, populations and patterns in ecology. Andover, UK, Intercept.Google Scholar
Mills, N.J. & Gutierrez, A.P. (1996) Prospective modelling in biological control: an analysis of the dynamics of heteronomous hyperparasitism in a cotton–whitefly– parasitoid system. Journal of Applied Ecology 33, 13791394.CrossRefGoogle Scholar
Myers, J.H., Higgens, C. & Kovacs, E. (1989) How many insects species are necessary for the biological control of insects? Environmental Entomology 18, 541547.CrossRefGoogle Scholar
Netting, J.F. & Hunter, M.S. (2000) Ovicide in the whitefly parasitoid, Encarsia formosa. Animal Behaviour 60, 217226.CrossRefGoogle ScholarPubMed
Onillon, J.C., Polaszek, A., Cocquempot, C. & Maignet, P. (1994) Premieres observations sur l'entomofaune parasitarie infeodee a Bemisia tabaci (Homopt., Aleyrodidae) dans le sud-est de la France. IOBC–WPRS Bulletin 17(5), 6769.Google Scholar
Pedata, P.A. & Hunter, M.S. (1996) Secondary host choice by the autoparasitoid Encarsia pergandiella. Entomologia Experimentalis et Applicata 81, 207214.CrossRefGoogle Scholar
Pijls, J.W.A.M., Hofker, K.D., van Staalduinen, M.J. & van Alphen, J.J.M. (1995) Interspecific host discrimination and competition in Apoanagyrus (Epidinocarsis) lopezi and A. (E.) diversicornis, parasitoids of the cassava mealybug Phenacoccus manihoti. Ecological Entomology 20, 326332.CrossRefGoogle Scholar
Polaszek, A., Evans, G.A. & Bennett, F.D. (1992) Encarsia parasitoids of Bemisia tabaci (Hymenoptera: Aphelinidae, Homoptera: Aleyrodidae): a preliminary guide to identification. Bulletin of Entomological Research 82, 375392.CrossRefGoogle Scholar
Rosen, D. (1981) Some concluding remarks. pp 5052. in Rosen, D. (Ed.) The role of hyperparasitism in biological control: a symposium. Berkley, California, University of California, Division of Agricultural Sciences.Google Scholar
Salt, G. (1961) Competition among insect parasitoids. Symposia of the Society for Experimental Biology 15, 96119.Google Scholar
Scholz, D. & Höller, C. (1992) Competition for hosts between two hyperparasitoids of aphids, Dendrocerus laticeps and Dendrocerus carpenteri (Hymenoptera: Megaspilidae): the benefit of interspecific host discrimination. Journal of Insect Behavior 5, 289300.CrossRefGoogle Scholar
Schreiber, S.J., Mills, N.J. & Gutierrez, A.P. (2001) Host-limited dynamics of autoparasitoids. Journal of Theoretical Biology 212, 141153.CrossRefGoogle ScholarPubMed
Sokal, R.R. & Rohlf, F.J. (1995) Biometry. pp 3rd edn. 880 pp. New York, W.H. Freeman and Co.Google Scholar
van Lenteren, J.C., Bakker, K. & van Alphen, J.J.M. (1978) How to analyse host discrimination. Ecological Entomology 3, 7175.CrossRefGoogle Scholar
van Lenteren, J.C., van Roermund, H.J.W. & Sütterlin, S. (1996) Biological control of greenhouse whitefly (Trialeurodes vaporariorum) with the parasitoid Encarsia formosa: how does it work? Biological Control 6, 110.CrossRefGoogle Scholar
van Meer, M.M.M., van Kan, F.J.P.M., Breeuwer, J.A.J. & Stouthamer, R. (1995) Identification of symbionts associated with parthenogenesis in Encarsia formosa (Hymenoptera: Aphelinidae) and Diplolepis rosae (Hymenoptera: Cynipidae). Proceedings of the Section for Experimental and Applied Entomolology of the Netherlands Entomological Society, Amsterdam 6, 8186.Google Scholar
van Roermund, H.J.W. & van Lenteren, J.C. (1995) Foraging behaviour of the whitefly parasitoid Encarsia formosa on tomato leaflets. Entomologia Experimentalis et Applicata 76, 313324.CrossRefGoogle Scholar
Vet, L.E.M. & van Lenteren, J.C. (1981) The parasite–host relationship between Encarsia formosa Gah. (Hymenoptera: Aphelinidae) and Trialeurodes vaporariorum (Westw.) (Homoptera: Aleyrodidae). X. A comparison of three Encarsia spp. and one Eretmocerus sp. to estimate their potentialities in controlling whitefly on tomatoes in greenhouses with a low temperature regime. Zeitschrift für Angewandte Entomologie 91, 327348.CrossRefGoogle Scholar
Vet, L.E.M., Meyer, M., Bakker, K. & van Alphen, J.J.M. (1984) Intra- and interspecific host discrimination in Asobara (Hymenoptera) larval endo-parasitoid of the Drosophilidae: comparison between closely related and less closely related species. Animal Behaviour 32, 871874.CrossRefGoogle Scholar
Viggiani, G. (2000) Note biologiche e distribuzione in Campania di Encarsia pergandiella, parassitoide di Bemisia tabaci e Trialeurodes vaporariorum. Informatore Fitopatologico 12, 5760.Google Scholar
Viggiani, G. & Mazzone, M. (1979) Contributi alla conoscenza morfo-biologica delle specie del complesso Encarsia Foerster – Prospaltella Ashmead (Hym.: Aphelinidae). 1. Un commento sull'attuale stato, con proposte sinonimiche e descrizione di Encarsia silvestrii n. sp., parassita di Bemisia citricola Gom. Men. (Hom.: Aleyrodidae). Bollettino del Laboratorio di Entomologia Agraria di Portici 'Filippo Silvestri' 44, 121179.Google Scholar
Viggiani, G. & Mazzone, P. (1980) Sull'introduzione in Italia di Encarsia pergandiella Howard (Hymenoptera: Aphelinidae), parassita di Trialeurodes vaporariorum (Westw.) (Homoptera: Aleyrodidae). Bollettino del Laboratorio di Entomologia Agraria di Portici 'Filippo Silvestri' 37, 3943.Google Scholar
Williams, T. (1996) Invasion and displacement of experimental populations of a conventional parasitoid by a heteronomous hyperparasitoid. Biocontrol Science and Technology 6, 603618.CrossRefGoogle Scholar
Zaviezo, T. & Mills, N. (2001) The response of Hyssopus pallidus to hosts previously parasitized by Ascogaster quadridentata: heterospecific discrimination and host quality. Ecological Entomology 26, 9199.CrossRefGoogle Scholar
Zchori-Fein, E., Roush, R.T. & Hunter, M.S. (1992) Male production induced by antibiotic treatment in Encarsia formosa (Hymenoptera: Aphelinidae), an asexual species. Experientia 48, 102105.CrossRefGoogle Scholar