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THE EFFECT OF PARASITISM BY APHIDIUS SMITHI (HYMENOPTERA: APHIDIIDAE) ON REPRODUCTION AND POPULATION GROWTH OF THE PEA APHID (HOMOPTERA: APHIDIDAE)

Published online by Cambridge University Press:  31 May 2012

A. Campbell
Affiliation:
Pestology Centre, Department of Biological Sciences, Simon Fraser University, Bumaby, British Columbia
M. Mackauer
Affiliation:
Pestology Centre, Department of Biological Sciences, Simon Fraser University, Bumaby, British Columbia

Abstract

Parasitism by Aphidius smithi reduced the fecundity and population growth of pea aphid, Acyrthosiphon pisum. Aphids that were parasitized during the first or second instar period died as fourth instars without producing offspring. Parasitized third or fourth instars usually reached maturity and produced a variable number of progeny. Parasitized adult aphids stopped producing nymphs approximately 7 to 8 days following attack by A. smithi. Equations are given for the relationship between the mean total fecundity, the intrinsic rate of increase, and the doubling time of apterous and alate viviparous pea aphid and the aphid age at the beginning of parasitism.

Type
Articles
Copyright
Copyright © Entomological Society of Canada 1975

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References

Andrewartha, H. G. and Birch, L. C.. 1954. The distribution and abundance of animals. Univ. of Chicago Press, Chicago and London. xv + 782 pp.Google Scholar
Arthur, D. R. 1944. Aphidius granarius, Marsh., in relation to its control of Myzus kaltenbachi, Schout. Bull. ent. Res. 35: 257270.CrossRefGoogle Scholar
Broussal, G. 1966. Les Hyménoptères parasites et hyperparasites de Brevicoryne brassicae (Homoptères – Aphididae). Thèse, Fac. Sci. Univ. Reims. 187 pp.Google Scholar
Campbell, A. 1974. Seasonal changes in abundance of the pea aphid and its associated parasites in the southern interior of British Columbia. Ph.D. Thesis, Simon Fraser Univ., Burnaby, B.C. xi + 282 pp.Google Scholar
Fox, P. M., Pass, B. C., and Thurston, R.. 1967. Laboratory studies on the rearing of Aphidius smithi (Hymenoptera: Braconidae) and its parasitism of Acyrthosiphon pisum (Homoptera: Aphididae). Ann. ent. Soc. Am. 60: 10831087.CrossRefGoogle Scholar
Hafez, M. 1961. Seasonal fluctuations of the population density of the cabbage aphid (Brevicoryne brassicae (L.)) in the Netherlands, and the role of its parasite Aphidius (Diaeretiella) rapae (Curtis). Tijdschr. PlZiekt. 67: 445548.Google Scholar
Johnson, B. 1959. Effect of parasitization by Aphidius platensis Brèthes on the developmental physiology of its host, Aphis craccivora Koch. Entomologia exp. appl. 2: 8299.Google Scholar
Johnson, B. 1965. Premature breakdown of the prothoracic glands in parasitized aphids. Nature, Lond. 206: 958959.CrossRefGoogle Scholar
Mackauer, M. 1971. Acyrthosiphon pisum (Harris), pea aphid (Homoptera: Aphididae), pp. 310. In Biological control programmes against insects and weeds in Canada 1959–1968. Tech. Commun. Commonw. Inst. biol. Control, No. 4.Google Scholar
Mackauer, M. 1973 a. Host selection and host suitability in Aphidius smithi (Hymenoptera: Aphidiidae), pp. 2029. In Lowe, A. D. (Ed.), Perspectives in aphid biology. Bull. ent. Soc. N. Zeal. 2.Google Scholar
Mackauer, M. 1973 b. The population growth of the pea aphid biotype R1 on broad bean and pea (Homoptera: Aphididae). Z. angew. Ent. 74: 343351.CrossRefGoogle Scholar
Mackauer, M. and Bisdee, H. E.. 1965. Two simple devices for rearing aphids. J. econ. Ent. 58: 365366.CrossRefGoogle Scholar
Stary, P. 1964. Biological control of Megoura viciae Bckt. in Czechoslovakia. Cas. csl. Spol. ent. 61: 301322.Google Scholar
Tremblay, E. 1964. Ricerche sugli Imenotteri parassiti. I. Studio morfo-biologico sul Lysiphlebus fabarum (Marshall) (Hymenoptera: Braconidae: Aphidiinae). Boll. Lab. Ent. agr. Filippo Silvestri 22: 1122.Google Scholar
Ullyett, G. C. 1938. The species of Aphidius (Aphidiinae: Braconidae) as parasites of aphids in South Africa. Sci. Bull. Dep. Agric. For. Un. S. Afr., Pl. Ind. Ser. No. 36, 178: 128.Google Scholar
Wiackowski, S. K. 1962. Studies on the biology and ecology of Aphidius smithi Sharma & Subba Rao (Hymenoptera, Braconidae), a parasite of the pea aphid, Acyrthosiphon pisum (Harr.) (Homoptera, Aphididae). Polskie Pismo ent. 32: 253310.Google Scholar