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THE LIFE HISTORY AND PREDATORY EFFICIENCY OF RAVINIA LHERMINIERI (DIPTERA: SARCOPHAGIDAE) ON THE FACE FLY (DIPTERA: MUSCIDAE)

Published online by Cambridge University Press:  31 May 2012

Lawrence G. Pickens
Lawrence G. Pickens
Affiliation:
Livestock Insects Laboratory, Agricultural Research - Science and Education Administration, USDA, Beltsville, Maryland 20705
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Abstract

In laboratory tests, Ravinia lherminieri (Robineau-Desvoidy) larvae significantly reduced the numbers of face fly, Musca autumnalis De Geer, eggs or larvae (98% mortality), in 100 ml of bovine feces at R. lherminieri to face fly ratios down to 10:200. Face fly immature mortality due to R. lherminieri decreased from 98% to 0% as the volume of feces per larva increased from 10 ml to 80 ml. Although R. lherminieri larvae survived on feces alone, their survival increased 26% (63% vs. 89%) when face fly immatures were added to the feces.

Résumé

Lors d’essais en laboratoire, les larves de Ravinia lherminieri (Robineau-Desvoidy) ont significativement réduit les nombres d’oeufs ou de larves (98% de mortalité) de la mouche faciale, Musca autumnalis De Geer, à des rapports numériques R. lherminieri/mouche faciale allant aussi bas que 10 : 200 dans 100 ml de fèces de bovin. La mortalité des stades immatures de la mouche faciale due à R. lherminieri est passée de 98% à 0% avec une augmentation du volume de fèces par larve de 10 ml à 80 ml. Bien que les larves de R. lherminieri aient pu survivre en présence de fèces seulement, leur survie a augmenté de 26% (63% vs 89%) lorsque des immatures de la mouche faciale ont été ajoutés aux fèces.

Type
Articles
Information
The Canadian Entomologist , Volume 113 , Issue 6 , June 1981 , pp. 523 - 526
Copyright
Copyright © Entomological Society of Canada 1981

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References

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