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1 July 2003 Remating of Wild Ceratitis capitata (Diptera: Tephritidae) Females in Field Cages
M. T. Vera, J. L. Cladera, G. Calcagno, J. C. Vilardi, D. O. McInnis
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Abstract

The remating behavior of wild Ceratitis capitata (Wiedemann) females was examined after first mating to males from the wild or from one of two genetic sexing strains: Cast 191 (irradiated or nonirradiated males) or Seib 6-96 (irradiated males only). The observations were carried out in field cages set over a rooted host tree during a continuous period of 10 h in which females were individually identified. On average, 12% of females remated. The general trend was a higher rate of remating for females first mated with lab males compared with females first mated with wild males. It was observed that females that remated tended to start and end their first mating earlier than those females that did not remate, and the first mating of the former was shorter than that of the latter. However, there was no significant differences in copula duration between remater and nonremater females. Females mated initially to wild males showed the longest average refractory period and females mated to Cast 191 irradiated males the shortest. Females first mated to Cast 191 nonirradiated and Seib 6-96 irradiated males showed intermediate values. It is expected that the methodology used in this study can prove useful for routine quality control tests in medfly mass-rearing facilities.

M. T. Vera, J. L. Cladera, G. Calcagno, J. C. Vilardi, and D. O. McInnis "Remating of Wild Ceratitis capitata (Diptera: Tephritidae) Females in Field Cages," Annals of the Entomological Society of America 96(4), 563-570, (1 July 2003). https://doi.org/10.1603/0013-8746(2003)096[0563:ROWCCD]2.0.CO;2
Received: 11 January 2002; Accepted: 1 November 2002; Published: 1 July 2003
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KEYWORDS
field cages
genetic sexing strains
medfly
refractory period
Remating
sterile insect technique
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