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SEASONAL OCCURRENCE AND RELATIVE ABUNDANCE OF APHID PREDATORS AND PARASITOIDS ON PUBESCENT POTATO PLANTS

Published online by Cambridge University Press:  31 May 2012

John J. Obrycki  and
Maurice J. Tauber
John J. Obrycki
Affiliation:
Department of Entomology, Cornell University, Ithaca, New York, USA 14853
Maurice J. Tauber
Affiliation:
Department of Entomology, Cornell University, Ithaca, New York, USA 14853
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Abstract

During 2 field seasons, Coccinellidae (primarily Coccinella transversoguttata richardsoni, Coleomegilla maculata, Hippodamia convergens, H. tridecimpunctata, and H. glacialis) were the most abundant predators on potato hybrids (Solanum tuberosum × S. berthaultii, F3) with various densities of glandular pubescence. Highly pubescent clones had the highest percentage of predator eggs, while clones with the lowest trichome densities had the highest percentages of immature and adult predators. By comparison, high numbers of aphid parasitoid mummies (primarily Aphidius and Praon spp.) occurred on clones with moderate to high densities of glandular pubescence. During both years, predators and parasitoids were most abundant in late July and August.

Résumé

Au cours de 2 saisons de croissance, les Coccinellidae (surtout Coccinella transversoguttata richardsoni, Coleomegilla maculata, Hippodamia convergens, H. tridecimpunctata et H. glacialis) se sont avérés les prédateurs les plus abondants sur des hybrides de pomme de terre (Solanum tuberosum × S. berthaultii, F3) montrant divers degrés de pubescence glandulaire. Les clônes ayant une forte pubescence ont reçu le pourcentage le plus élevé d'oeufs de prédateurs, alors que les clones ayant les densités de trichomes les plus faibles avaient les pourcentages les plus élevés de prédateurs immatures et adultes. Par comparaison, les nombres les plus élevés de momies de parasitoïdes d'aphides (surtout des Aphidius et Praon spp.) ont été observés sur les clones à densité moyenne à élevée de pubescence glandulaire. Les prédateurs et parasitoïdes ont été les plus abondants à la fin juillet et en août.

Type
Articles
Information
The Canadian Entomologist , Volume 117 , Issue 10 , October 1985 , pp. 1231 - 1237
Copyright
Copyright © Entomological Society of Canada 1985

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References

Bergman, J.M., and Tingey, W.M.. 1979. Aspects of interaction between plant genotypes and biological control. Bull. ent. Soc. Am 25: 275–279.Google Scholar
Gibson, R.W., and Pickett, J.A.. 1983. Wild potato repels aphids by release of aphid alarm pheromone. Nature 302: 608–609.CrossRefGoogle Scholar
Klassen, W. 1981. The role of biological control in integrated pest management systems. pp. 433–445 in Papavizas, G.C. (Ed.), Biological control in crop protection. Beltsville symposia in agricultural research; 5. Allenheld, Osmun & Co. Publ., Totowa, NJ. 461 pp.Google Scholar
Mack, T.P., and Smilowitz, Z.. 1979. Diel activity of green peach aphid predators as indexed by sticky traps. Environ. Ent. 8: 799–801.CrossRefGoogle Scholar
Mack, T.P., and Smilowitz, Z.. 1982. CMACSIM, a temperature-dependent predator–prey model simulating the impact of Coleomegilla maculata (DeGeer) on green peach aphids on potato plants. Environ. Ent. 11: 1193–1201.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 Ent. 13: 679–683.CrossRefGoogle Scholar
Obrycki, J.J., Tauber, M.J., and Tingey, W.M.. 1983. Predator and parasitoid interaction with aphid-resistant potatoes to reduce aphid densities: a two-year field study. J. econ. Ent. 76: 456–462.CrossRefGoogle Scholar
Rabb, R.L., and Bradley, J.R.. 1968. The influence of host plants on parasitism of eggs of the tobacco hornworm. J. econ. Ent. 61: 1249–1252.CrossRefGoogle Scholar
Root, R.B., and Gowan, J.A.. 1978. The influence of insecticides with differing specificity on the structure of the fauna associated with potatoes. Am. Mid. Nat. 99: 299–314.CrossRefGoogle Scholar
Ryan, T.A., Joiner, B.L., and Ryan, B.F.. 1976. Minitab Student Handbook. Duxbury Press, North Scituate, MA. 341 pp.Google Scholar
Scheurer, S. 1964. Untersuchungen zum Massenwechsel einiger fichten bewohnender lachnidenarten in harz. Biol. Zentralbl. 83: 427–467.Google Scholar
Shands, W.A., Simpson, G.W., and Reed, L.B.. 1954. Subunits of sample for estimating aphid abundance on potatoes. J. econ. Ent. 47: 1024–1027.CrossRefGoogle Scholar
Sokal, R.R., and Rohlf, F.J.. 1969. Biometry. W.H. Freeman and Co., San Francisco, CA. 776 pp.Google Scholar
Starý, P. 1970. Biology of aphid parasites (Hymenoptera: Aphidiidae) with respect to integrated control. W. Junk, The Hague. 643 pp.Google Scholar
Tingey, W.M. 1981. Potential for plant resistance in management of arthropod pests. pp. 268–288 in Lashomb, J.H., and Casagrande, R.A. (Eds.), Advances in potato pest management. Hutchinson Ross, Stroudsburg, PA. 288 pp.Google Scholar
Tingey, W.M., and Laubengayer, J.E.. 1981. Defense against the green perach aphid and potato leafhopper by glandular trichomes of Solanum berthaultii. J. econ. Ent. 74: 721–725.CrossRefGoogle Scholar
Tingey, W.M., Mackenzie, J.D., and Gregory, P.. 1978. Total foliar glycoalkaloids and resistance of wild potato species to Empoasca fabae (Harris). Am. Potato J. 55: 577–585.CrossRefGoogle Scholar
Tingey, W.M., Plaisted, R.L., Laubengayer, J.E., and Mehlenbacher, S.A.. 1982. Green peach aphid resistance by glandular trichomes in Solanum tuberosum × S. berthaultii hybrids. Am. Potato J. 59: 241–251.CrossRefGoogle Scholar