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DISSEMINATION OF HOWARDULA SP. NEMATODES BY ADULT TOBACCO FLEA BEETLES (COLEOPTERA: CHRYSOMELIDAE)

Published online by Cambridge University Press:  31 May 2012

Kent D. Elsey
Kent D. Elsey
Affiliation:
Tobacco Research Laboratory, ARS-USDA, Oxford, North Carolina 27565
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Abstract

A Howardula sp. nematode parasite of the tobacco flea beetle, Epitrix hirtipennis (Melsheimer), was able to utilize the adult male to disseminate juveniles. At 27°C the mean total number of juveniles released per beetle was 369 for female beetles and 377 for males at an average rate of ca. 37 per day from both sexes. A cooler temperature retarded the onset of dissemination but did not affect the rate of release. Fifty-nine per cent of the free-living nematodes survived for 5–6 days, but none survived beyond 13 days. Seventy-nine per cent of the free-living nematodes were female.

Type
Articles
Information
The Canadian Entomologist , Volume 109 , Issue 9 , September 1977 , pp. 1283 - 1285
Copyright
Copyright © Entomological Society of Canada 1977

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