Reducing the overwintering ability of Aedes albopictus by male release.

نویسندگان

  • S M Hanson
  • J P Mutebi
  • G B Craig
  • R J Novak
چکیده

Eggs of temperate Aedes albopictus populations are cold hardy and can diapause, but tropical populations are not cold hardy and cannot diapause. Heterozygotes possess intermediate diapause and cold hardiness. Males of a tropical strain from Malaysia with a distinctive genetic marker were released into an existing temperate population in East St. Louis, Illinois. Subsequent egg samples from the release site had genetic marker frequency of up to 24%. Reduced cold hardiness and decreased diapause incidence were also observed in the release site population. No such changes occurred at a nearby control site. The rank order of overwintering survival of eggs at the release site was: Aedes triseriatus > temperate Ae. albopictus > hybrid temperate/tropical Ae. albopictus > tropical Ae. albopictus. Eggs collected from the release population the next summer showed total absence of the genetic marker; presumably carriers were removed by the winter.

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عنوان ژورنال:
  • Journal of the American Mosquito Control Association

دوره 9 1  شماره 

صفحات  -

تاریخ انتشار 1993