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POPULATION DYNAMICS OF THE CABBAGE APHID, BREVICORYNE BRASSICAE (HOMOPTERA: APHIDIDAE) AT VANCOUVER, BRITISH COLUMBIA: III. DEVELOPMENT, FECUNDITY, AND MORPH DETERMINATION VS. APHID DENSITY AND PLANT QUALITY

Published online by Cambridge University Press:  31 May 2012

D. A. Raworth ,
S. McFarlane ,
N. Gilbert  and
B. D. Frazer
D. A. Raworth
Affiliation:
Research Station, Agriculture Canada, Vancouver, British Columbia V6T 1X2
S. McFarlane
Affiliation:
3125 Waterloo Street, Vancouver, British Columbia
N. Gilbert
Affiliation:
CSIRO Division of Wildlife, Lyneham, A.C.T. 2602Australia
B. D. Frazer
Affiliation:
Research Station, Agriculture Canada, Vancouver, British Columbia V6T 1X2
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Abstract

Developmental time, fecundity, adult weight, numbers, and age distribution of Brevicoryne brassicae (L.) and leaf area and plant quality of Maris Kestrel kale, Brassica oleracea L., were determined at three aphid densities and two watering rates in a factorial field-cage experiment. The watering treatment had no effect on the aphid or plant response variates. The aphid density treatment significantly affected final aphid numbers (low < medium = high density), leaf area (high < low = medium density), average adult weight measured at the end of the experiment (high < low < medium density), and weight of the adults in the developmental time measurement (high < low = medium density). The results suggested a strong aphid–plant interaction, but at densities which rarely occur in the field. Leaf water/dry weight was used to assess plant quality, but it was not a good predictor of any of the aphid response variates. Developmental time decreased, and fecundity increased as adult aphid weight increased. Production of fourth-instar apterae decreased logarithmically as aphid density increased.

Résumé

On a déterminé le temps de développement, la fécondité, le poids des adultes, et la répartition en nombre et en âge des populations de Brevicoryne brassicae (L.) ainsi que la surface foliaire et la qualité de la variété Maris Kestrel kale, Brassica oleracea L., pour trois densités de population de pucerons et deux taux d'arrosage, dans une expérience factorielle en cage grillagée. Les taux d'arrosage n'ont pas influé sur les variables aléatoires de la réponse des pucerons et des plantes. La densité de la population de pucerons a beaucoup influé sur le nombre final de pucerons (faible < moyen = forte densité), la surface foliaire (élevée < basse = densité moyenne), le poids moyen des adultes mesuré à la fin de l'expérience (élevé < faible < densité moyenne) et le poids des adultes dans la mesure du temps de développement (élevé < faible = densité moyenne). Les résultats montrent une interaction très forte entre les pucerons et la plante mais à des densités rarement observées au champ. Par ailleurs, on a utilisé les poids sec et frais des feuilles pour évaluer la qualité de la plante, mais on s'est aperçu qu'on ne pouvait s'en servir pour prévoir les variables aléatoires de la réaction des pucerons. Le temps de développement a diminué et la fécondité a augmenté parallèlement au poids chez l'adulte. La production d'individus aptères du quatrième stade a diminué logarithmiquement au fur et à mesure que la densité de la population de pucerons augmentait.

Type
Articles
Information
The Canadian Entomologist , Volume 116 , Issue 6 , June 1984 , pp. 879 - 888
Copyright
Copyright © Entomological Society of Canada 1984

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References

Barlow, N. D. and Dixon, A. F. G.. 1980. Simulation of Lime Aphid Population Dynamics. Center for Agricultural Publishing and Documentation, Wageningen, Netherlands. 164 pp.Google Scholar
Gilbert, N. 1980. Comparative dynamics of a single-host aphid. I. The evidence. J. Anim. Ecol. 49: 351–369.CrossRefGoogle Scholar
Gutierrez, A. P., Havenstein, D. E., Nix, H. A., and Moore, P. A.. 1974. The ecology of Aphis craccivora Koch and subterranean clover stunt virus in south-east Australia. II. A model of cowpea aphid populations in temperate pastures. J. appl. Ecol. 11: 1–20.CrossRefGoogle Scholar
Honeyborne, C. H. B. 1969. Performance of Aphis fabae and Brevicoryne brassicae on plants treated with growth regulators. J. Sci. Food Agric. 20: 388–390.CrossRefGoogle Scholar
Hughes, R. D. 1963. Population dynamics of the cabbage aphid, Brevicoryne brassicae (L.). J. Anim. Ecol. 32: 393–424.CrossRefGoogle Scholar
Hughes, R. D. and Gilbert, N.. 1968. A model of an aphid population—a general statement. J. Anim. Ecol. 37: 553–563.CrossRefGoogle Scholar
Kennedy, J. S. 1958. Physiological condition of the host-plant and susceptibility to aphid attack. Entomologia exp. appl. 1: 50–65.CrossRefGoogle Scholar
Nawrocka, B. and Brzeski, M. W.. 1973. Rozwoj Brevicoryne brassicae (L.) na Kapuscie porazonej przez Heterodera schachti Schm. Abstracted from Helminthological Abstracts B24, No. 881.Google Scholar
Raworth, D. A. 1984. Population dynamics of the cabbage aphid, Brevicoryne brassicae (Homoptera: Aphididae) at Vancouver, British Columbia. II. Development, fecundity, and longevity. Can. Ent. 116: 871–878.CrossRefGoogle Scholar
Raworth, D. A., Frazer, B. D., Gilbert, N., and Wellington, W. G.. 1984. Population dynamics of the cabbage aphid, Brevicoryne brassicae (Homoptera: Aphididae) at Vancouver, British Columbia. I. Sampling methods and population trends. Can. Ent. 116: 861–870.CrossRefGoogle Scholar
van Emden, H. F. 1964. Effect of (2-chloroethyl) trimethylammonium chloride on the rate of increase of the cabbage aphid (Brevicoryne brassicae (L.)). Nature 201: 946–948.CrossRefGoogle Scholar
van Emden, H. F. 1966. Studies on the relations of insect and host plant. III. A comparison of the reproduction of Brevicoryne brassicae and Myzus persicae (Hemiptera: Aphididae) on Brussels sprout plants supplied with different rates of nitrogen and potassium. Entomologia exp. appl. 9: 444–460.CrossRefGoogle Scholar
van Emden, H. F. and Bashford, M. A.. 1969. A comparison of the reproduction of Brevicoryne brassicae and Myzus persicae in relation to soluble nitrogen concentration and leaf age (leaf position) in the Brussels sprout plant. Entomologia exp. appl. 12: 351–364.CrossRefGoogle Scholar
van Emden, H. F. and Bashford, M. A.. 1971. The performance of Brevicoryne brassicae and Myzus persicae in relation to plant age and leaf amino acids. Entomologia exp. appl. 14: 349–360.CrossRefGoogle Scholar
van Emden, H. F. and Wearing, C. H.. 1965. The role of the aphid host plant in delaying economic damage levels in crops. Ann. appl. Biol. 56: 323–324.CrossRefGoogle Scholar
Way, M. J. and Cammell, M.. 1970. Aggregation behavior in relation to food utilization by aphids. pp. 229–247in Watson, A. (Ed.), Animal Populations in Relation to Their Food Resources. Blackwell, Oxford.Google Scholar
Wearing, C. H. 1972. Responses of Myzus persicae and Brevicoryne brassicae to leaf age and water stress in Brussels sprouts grown in pots. Entomologia exp. appl. 15: 61–80.CrossRefGoogle Scholar