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THE OVERWINTERING POTENTIAL OF TRUE ARMYWORM, PSEUDALETIA UNIPUNCTA (LEPIDOPTERA: NOCTUIDAE), POPULATIONS IN QUEBEC1

Published online by Cambridge University Press:  31 May 2012

Paul G. Fields  and
Jeremy N. McNeil
Paul G. Fields
Affiliation:
Département de Biologie, Université Laval, Québec, Québec G1K 7P4
Jeremy N. McNeil
Affiliation:
Département de Biologie, Université Laval, Québec, Québec G1K 7P4
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Abstract

The true armyworm, Pseudaletia unipuncta (Haw.), has no evident diapausing stage, is not freeze tolerant, shows no consistent seasonal changes in either supercooling-point values or longevity at 0 °C for different developmental stages, and did not survive when held in overwintering cages in the field. These facts support the hypothesis that this species cannot overwinter in Quebec and that the adult populations observed each spring must therefore be the result of a northerly migration from sites, such as Tennessee, where overwintering is known to occur.

Résumé

Chez la légionnaire uniponctuée, Pseudaletia unipuncta (Haw.), il n'y a pas de stade diapausant et elle ne possède pas la capacité à tolérer le gel. De plus il n'y a pas, chez les différents stades de développement, de changements saisonniers consistants dans le point de sur-refroidissement ou dans le longévité à 0 °C. Enfin, elle ne survie pas pendant l'hiver dans les cages sur le terrain. Ces faits supportent l'hypothèse que la légionnaire ne puisse passer l'hiver au Québec et que les populations d'adultes qui surgissent à chaque printemps doivent nécessairement être le résultat d'une migration en direction du nord à partir de régions, comme le Tennessee, où il est connu que l'hivernement a lieu.

Type
Articles
Information
The Canadian Entomologist , Volume 116 , Issue 12 , December 1984 , pp. 1647 - 1652
Copyright
Copyright © Entomological Society of Canada 1984

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References

Beirne, B. P. 1971. Pest insects of annual crops in Canada. I Lepidoptera. II Diptera. III Coleoptera. Mem. ent. Soc. Can. 78 124 pp.Google Scholar
Breeland, S. G. 1958. Biological studies on the armyworm, Pseudaletia unipuncta (Haworth), in Tennessee (Lepidoptera: Noctuidae). J. Tenn. Acad. Sci. 33: 263–347.Google Scholar
Danks, H. V. 1978. Modes of seasonal adaptation in the insects. I. Winter survival. Can. Ent. 110: 1167–1205.Google Scholar
Guppy, J. C. 1961. Life history and behaviour of the armyworm, Pseudaletia unipuncta (Haw.) (Lepidoptera: Noctuidae), in eastern Ontario. Can. Ent. 93: 1141–1153.Google Scholar
Hudson, J. E. 1978. Cold hardiness of some adult mosquitoes in central Alberta. Can. J. Zool. 56: 1697–1709.CrossRefGoogle Scholar
Krunic, M. D. 1971. Influence of food on the cold hardiness of Megachile rotundata (F.). Can. J. Zool. 49: 863–865.CrossRefGoogle Scholar
Mansingh, A. 1971. Physiological classification of dormancies in insects. Can. Ent. 103: 983–1009.CrossRefGoogle Scholar
Mansingh, A. and Smallman, B. N.. 1972. Variation in polyhydric alcohol in relation to diapause and cold hardiness in the larvae of Isia isabella. J. Insect Physiol. 18: 1565–1571.CrossRefGoogle Scholar
McNeil, J. N. and Turgeon, J. J.. 1982. Pheromone biology in the population dynamics of Pseudaletia unipuncta (Haw.) (Lepidoptera: Noctuidae), a sporadic pest. pp. 217–224in Les médiateurs chimiques agissant sur le comportement des insectes. Les colloques de l'INRA, #7. Paris.Google Scholar
Pond, D. D. 1960. Life history studies of the armyworm, Pseudaletia unipuncta (Lepidoptera: Noctuidae) in New Brunswick. Ann. ent. Soc. Am. 53: 661–665.Google Scholar
Ring, R. A. 1972. Relationship between diapause and supercooling in the blow fly, Lucilia sericata (Mg.) (Diptera: Calliphoridae). Can. J. Zool. 50: 1601–1605.CrossRefGoogle Scholar
Salt, R. W. 1953. The influence of food on cold hardiness of insects. Can. Ent. 85: 261–269.CrossRefGoogle Scholar
Salt, R. W. 1961. Principles of insect cold hardiness. A. Rev. Ent 6: 55–74.CrossRefGoogle Scholar
Sømme, L. 1982. Supercooling and winter survival in terrestrial arthropods. Comp. Biochem. Physiol. 73a: 519–543.Google Scholar
Tauber, M. J. and Tauber, C. A.. 1976. Insect seasonality: Diapause maintenance, termination, and postdiapause development. A. Rev. Ent. 21: 81–107.Google Scholar
Turgeon, J. J., McNeil, J. N., and Roelofs, W. L.. 1983. Evaluation of sex pheromone traps for the armyworm, Pseudaletia unipuncta (Haw.) (Lepidoptera: Noctuidae). Environ. Ent. 12: 891–894.CrossRefGoogle Scholar
Turnock, W. J., Lamb, R. J., and Bodnaryk, R. P.. 1983. Effects of cold stress during pupal diapause on survival and development of Mamestra configurata (Lepidoptera: Noctuidae). Oecologia 56: 185–192.Google Scholar
Untung, K. 1978. The distribution and bionomics of the armyworm, Pseudaletia unipuncta (Haw.) in Michigan. Ph.D. Thesis, Michigan State University. 247 pp.Google Scholar