Effect of Nosema-Infection on O2 Consumption by Honey Bees

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Respiration of caged worker Apis mellifera L. artificially infected with spores of Nosema apis Zander was tested by using a slight modification of Moyer's method of measuring oxygen consumption. The Olson-Shugart variation of Kennington's technique was used successfully to measure the respiration of individual bees.

Individual bees infected with Nosema 24 to 33 days before testing used 22% less oxygen than comparable uninfected bees. Infected bees also consumed 14% more sucrose sirup and 33% less water than healthy bees.

Healthy bees lived 4.6% longer than infected bees. Despite suffering a heavy mortality during the 1st wk after caging, 19% of the uninfected bees were still alive when all the infected bees were dead.

Document Type: Research Article

Publication date: October 15, 1975

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  • Journal of Economic Entomology is published bimonthly in February, April, June, August, October, and December. The journal publishes articles on the economic significance of insects and is divided into the following sections: apiculture & social insects; arthropods in relation to plant disease; forum; insecticide resistance and resistance management; ecotoxicology; biological and microbial control; ecology and behavior; sampling and biostatistics; household and structural insects; medical entomology; molecular entomology; veterinary entomology; forest entomology; horticultural entomology; field and forage crops, and small grains; stored-product; commodity treatment and quarantine entomology; and plant resistance. In addition to research papers, Journal of Economic Entomology publishes Letters to the Editor, interpretive articles in a Forum section, Short Communications, Rapid Communications, and Book Reviews.
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