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Sphaerularia bombi Duford Parasitizing Bombus Queens in Northwestern Ontario1

Published online by Cambridge University Press:  31 May 2012

R. E. Fye
R. E. Fye
Affiliation:
Forest Insect Laboratory, Sault Ste. Marie, Ontario
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Extract

The initial spring loss of porential bumblebee colonies is the result of parasitism of the overwintered Bombus queens by the nematode Sphaerularia bombi Duford. The infested queens commonly have one or two nematodes in the body cavity and may have as many as six (Medler 1957), which effect sterility. Palm (1948) pesenied the histopathology of the nematode based on material collected in the vicinity of Lund, Sweden, where the infestation of the nematode was so intense that healthy queens were difficult to collect.

Type
Articles
Information
The Canadian Entomologist , Volume 98 , Issue 1 , January 1966 , pp. 88 - 89
Copyright
Copyright © Entomological Society of Canada 1966

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References

Chapman, J. A., and Kinghorn, J. M.. 1955. Window flight traps for insects. Canad. Ent. 87: 46–47.CrossRefGoogle Scholar
Medler, J. T. 1957. Bumblebee ecology in relation to the pollination of alfalfa and red clover. Insectes Sociaux 4(3): 245–252.CrossRefGoogle Scholar
Palm, N. B. 1948. Normal and pathological histology of the ovaries in Bombus Latr. with notes on the hormonal interrelations between the ovaries and the corpora allata. Opus Ent. Suppl. 7, 101 pp.Google Scholar