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SOME ASPECTS OF THE BIOLOGY AND A LABORATORY LIFE TABLE OF THE ACARINE PREDATOR ZETZELLIA MALI1

Published online by Cambridge University Press:  31 May 2012

N. D. White  and
J. E. Laing
N. D. White
Affiliation:
Department of Environmental Biology, University of Guelph, Guelph, Ontario N1G 2W1
J. E. Laing
Affiliation:
Department of Environmental Biology, University of Guelph, Guelph, Ontario N1G 2W1
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Abstract

A rearing technique was developed to study various aspects of the biology of Zetzellia mali (Ewing) in the laboratory. The rate of development of Z. mali feeding upon the phytophagous mite Aculus schlechtendali (Nalepa) was determined at 9°±1°C and 14°±1°C (56% R.H.), 19°±1°C (33%, 56%, 76%, and 97% R.H.), and 24°±1°C (51% R.H.). The average preovipositional and ovipositional periods for 16 female Z. mali were 1.5 and 9.4 days respectively and an average of 1.7 eggs per day were laid by these females. Z. mali was found to be arrhenotokous with unmated females producing only male offspring and mated females producing 2.6 females: 1 male offspring. Diapause in Z. mali was broken at 24°±1°C, 16L:8D) with egg deposition beginning after 11 days (51% and 76% R.H.) or 12 days (33% and 96% R.H.) when the adults feed upon the winter eggs of Panonychus ulmi (Koch).

A life table was constructed for Z. mali and the intrinsic rate of increase (rm) was determined to be 0.109 female offspring/female/day. The mean generation time (T) was calculated to be 21.0 days and the net reproductive rate (R0) during this time was 10.04. The theoretical stable age distribution of the laboratory population of Z. mali at 19°±1°C, 56% R.H. was 59% eggs, 15% larvae, 7% protonymphs, 6% deutonymphs, and 13% adults.

Comparison of the intrinsic rates of increase and prey consumption of Z. mali and other species of predaceous mites indicate that Z. mali is not as efficient a regulating agent of phytophagous mites as the phytoseiids.

Type
Articles
Information
The Canadian Entomologist , Volume 109 , Issue 9 , September 1977 , pp. 1275 - 1281
Copyright
Copyright © Entomological Society of Canada 1977

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References

Berker, J. 1958. Die naturliche fiende der Tetranychiden. Z. angew. Ent. 43: 115–172.CrossRefGoogle Scholar
Birch, L. C. 1948. The intrinsic rate of natural increase on an insect population. J. Anim. Ecol. 17: 15–26.CrossRefGoogle Scholar
Bohm, H. 1960. Untersuchungen uber Spinnmilbenfeinde in Osterreich. Pflanzenschutzberichte 25(1/8): 23–46.Google Scholar
Cagle, L. R. 1946. Life history of the European red mite. Tech. Bull. Virginia agric. Exp. Stn 98: 1–19.Google Scholar
Delattre, P. 1971. Contributions à l'étude biologique de Zetzellia mali Ewing (Acarina: Stigmaeidae) (Arachnida). Ann. Zool. Ecol. Anim. 3: 297–303.Google Scholar
Delattre, P. 1974. Étude de l'efficacite predatrice de Zetzellia mali (Acarina: Stigmaeidae) vis-à-vis du tetranyque du pommier. Panonychus ulmi (Acarina: Tetranychidae). Entomophaga 19(1): 13–31.CrossRefGoogle Scholar
Ellingsen, I. J. 1971. Biology of Zetzellia mali (Ewing) and Agistemus fleschneri Summers (Acarina: Stigmaeidae) related to their abilities to control the European red mite Panonychus ulmi (Koch) (Acarina: Tetranychidae). M.Sc. Thesis, Ohio State Univ. 42 pp.Google Scholar
Hoyt, S. C. 1969. Integrated chemical control of insects and biological control of mites on apple in Washington. J. econ. Ent. 62(1): 74–86.CrossRefGoogle Scholar
Laing, J. E. 1968. Life history and life table of Phytoseiulus persimilis Athias-Henriot. Acarologia 10(4): 578–588.Google ScholarPubMed
Laing, J. E. 1969 a. Life history and life table of Tetranychus urticae Koch. Acarologia 11(1): 32–42.Google ScholarPubMed
Laing, J. E. 1969 b. Life history and life table of Metaseiulus occidentalis (Nesbitt). Ann. ent. Soc. Am. 62(5): 978–982.CrossRefGoogle Scholar
Ma, W-L. and Laing, J. E.. 1973. Biology, potential for increase and prey consumption of Amblyseius chilenensis (Dosse) (Acarina: Phytoseiidae). Entomophaga 18(1): 47–60.CrossRefGoogle Scholar
McMurtry, J. A., Huffaker, C. B., and Van de Vrie, M.. 1970. Ecology of tetranychid mites and their natural enemies; a review. Hilgardia 40(11): 331–458.CrossRefGoogle Scholar
Parent, B. and Beaulieu, A. A.. 1957. Life history of the European red mite. Can. Ent. 89: 328–333.CrossRefGoogle Scholar
White, N. D. G. 1976. Some aspects of the biology of the predaceous mite Zetzellia mali (Ewing) (Acarina: Stigmaeidae) found in southern Ontario apple orchards. M.Sc. Thesis, Univ. of Guelph. 89 pp.Google Scholar
White, N. D. G. and Laing, J. E.. Field studies of Zetzellia mali (Ewing) in southern Ontario apple orchards. Proc. ent. Soc. Ont. (in press).Google Scholar
Winston, P. W. and Bates, D. H.. 1960. Saturated solutions for the control of humidity in biological research. Ecology 41: 232–237.CrossRefGoogle Scholar