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In a colony of house flies, Musca domestica L., maintained on a diet containing 0.01 % of apholate for 65 generations, sterility increased from an average of about 6% for the F1-F5. generations to 69% for the F26-F30generations and then decreased to 14-22% for the 51st-65th generations. Tests at a range of dosages indicated that after 58-59 generations the colony had failed to develop any resistance to apholate. Evidence of the transmission of genetic damage from parent to offspring was found in chromosomal preparations of flies released rom apholate pressure. These showed such abnormalities as chromosomal stickiness, fragmentation, and the absence of an autosomal homologue. A colony maintained on a diet containing 0.05% of apholate showed a rapid increase in sterility and died out completely in the F7 generation: a colony maintained on 0.2% of the metepa died out in the F10 generation.
Document Type: Research Article
Publication date: August 1, 1967
More about this publication?
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.