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Influence of Various Numbers of Prey on Rate of Development, Oviposition, and Longevity of Typhlodromus pyri Scheuten (Acarina: Phytoseiidae) in the Laboratory1

Published online by Cambridge University Press:  31 May 2012

H. J. Herbert
H. J. Herbert
Affiliation:
Research Station, Canada Department of Agriculture, Kentville, Nova Scotia
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Extract

The predacious mites of the subfamily Phytoseiinae are common predators of the phytophagous mites in apple orchards in Nova Scotia. There is little information in the literature on the value of these predators in the control of phytophagous mites or on the food necessary for their development and reproduction. Ballard (1953) found that at 78°F. at least two males of Tetranychus bimaculatus Har. were required daily by Typhlodroms fallacis (Garm.) to complete the protonymphal or the deutonymphal instar. The males and mated females consumed daily an average of 3.9 and 7.5 males respectively from the larva1 to the adult stage. Chant (1960) found that T. pyri required 25 larvae of Panonychus ulmi (Koch), during 26 days to complete development at 64°F. in the absence of plant material or free water. These authors did not study the effects of different amounts of food on the development of these two species of phytoseiids.

Type
Articles
Information
The Canadian Entomologist , Volume 93 , Issue 5 , May 1961 , pp. 380 - 384
Copyright
Copyright © Entomological Society of Canada 1961

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References

Ballard, R. C. 1953. The biology of the predacious mite Typhlodromus fallacis (Garman) at 78°F. M.S. thesis. Ohio State University.Google Scholar
Chant, D. A. 1960. Phytoseiid mites (Acarina: Phytoseiidae) Part I. Bionomics of seven species in southeastern England. Part II. A taxonomic review of the family Phytoseiidae, with descriptions of 38 new species. Canadian Ent., Supplement 12.Google Scholar
Herbert, H. J. 1956. Laboratory studies on some factors in the life-history of the predacious mite Typhlodromus tiliae Oudms. (Acarina: Phytoseiidae). Canadian Ent. 88: 701–704.CrossRefGoogle Scholar