Field Trials with a Translocation Homozygote In Aedes aegypti for Population Replacemene

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Translocation homozygote strains of the yellowfever mosquito carrying several genetic markers were released in villages near Mombasa on the Kenya coast in an attempt to replace the indigenous populations by the introduced strains. A translocation strain marked with red eye was recovered in very low numbers after releases. However, when a strain marked with wild-type eye color was released, it readily entered houses and laid eggs in ovitraps. Translocation progeny were rarely obtained from natural breeding containers and none of the translocation strains became established in the field. Fitness studies conducted in the field and the laboratory showed that the translocation strains were deficient in fertility, larval development time, larval and adult survival, and mating competitiveness. Experiments also demonstrated that, when a choice was offered, native females laid 90% of their eggs in natural breeding sites while females carrying the translocation preferred ovitraps, laying 62% of their eggs in these sampling containers.

Document Type: Research Article

Publication date: June 1, 1976

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  • Journal of Economic Entomology is published bimonthly in February, April, June, August, October, and December. The journal publishes articles on the economic significance of insects and is divided into the following sections: apiculture & social insects; arthropods in relation to plant disease; forum; insecticide resistance and resistance management; ecotoxicology; biological and microbial control; ecology and behavior; sampling and biostatistics; household and structural insects; medical entomology; molecular entomology; veterinary entomology; forest entomology; horticultural entomology; field and forage crops, and small grains; stored-product; commodity treatment and quarantine entomology; and plant resistance. In addition to research papers, Journal of Economic Entomology publishes Letters to the Editor, interpretive articles in a Forum section, Short Communications, Rapid Communications, and Book Reviews.
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