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Two methods of estimating competitiveness of chemosterilized males of Musca domestica (Diptera: Muscidae)

Published online by Cambridge University Press:  10 July 2009

M. Saiful Islam  and
Gordon R. Port
M. Saiful Islam*
Affiliation:
Department of Agricultural & Environmental Science, University of Newcastle upon Tyne, UK
Gordon R. Port
Affiliation:
Department of Agricultural & Environmental Science, University of Newcastle upon Tyne, UK
*
M. Saiful Islam, Department of Pure & Applied Zoology, University of Reading, Whiteknights, PO Box 228, Reading RG6 2AJ, UK
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Abstract

Mating competitiveness and sexual or total competitiveness of males of the house fly, Musca domestica Linnaeus, treated with 1.0% hexamethyl phosphoramide (hempa) were measured quantitatively from direct observations and ratio test methods, respectively. From direct observations, treated males of Cooper and Boxted strains of M. domestica were found to obtain more first matings than untreated males (P <0.01 and P <0.05, respectively) when competing for untreated females, whilst by using the ratio test method under laboratory conditions, total competitiveness values (C) of treated males of the two strains were estimated to be 0.72–0.89 and 0.75–0.97, respectively, at three different ratios from 1:1:1 to 3:1:1.

Type
Original Articles
Information
Bulletin of Entomological Research , Volume 82 , Issue 4 , December 1992 , pp. 521 - 524
Copyright
Copyright © Cambridge University Press 1992

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