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Time-mortality response in Spodoptera exempta (Walk.) infected with heat-treated nuclear polyhedrosis virus

Published online by Cambridge University Press:  19 September 2011

M. O. Odindo
Affiliation:
Department of Zoology, University of Nairobi, P.O. Box 30197, Nairobi, Kenya*

Abstract

The susceptibility of third-instar Spodoptera exempta (Walk.) to a heat-treated nuclear polyhedrosis virus was tested in the laboratory. The polyhedral suspension was purified by differential centrifugation and heat-treated at temperatures that ranged from 20 to 90°C for 10–30 min. The LT50 ranged from 108.4 hr for virus heated at 50°C (10 min) to 162.2 hr for virus heated at 80°C (10 min). The fiducial limits to the LD50s were calculated at 0.95 probability.

Type
Research Article
Copyright
Copyright © ICIPE 1981

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References

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Time-mortality response in Spodoptera exempta (Walk.) infected with heat-treated nuclear polyhedrosis virus
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