Candidate sex pheromones of the New World screwworm Cochliomyia hominivorax

Five novel homologous acetate derivatives of long-chain secondary alcohols and a related ketone were tested for their efficacy as contact mating stimulants for Cochliomyia hominivorax Coquerel (Diptera: Calliphoridae). Full copulatory behaviour at a high percentage was found in tests with racemic 6-...

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Bibliographic Details
Published in:Medical and veterinary entomology 2007-03, Vol.21 (1), p.93-96
Main Authors: Carlson, D.A, Berkebile, D.R, Skoda, S.R, Mori, K, Mihok, S
Format: Article
Language:English
Subjects:
acetates
Acetates - pharmacology
Animals
chemical composition
Cochliomyia hominivorax
copulation
Diptera - physiology
dose response
Female
Ketones - pharmacology
Male
mate recognition
mating behavior
screwworm fly
sex attractants
Sex Attractants - isolation & purification
Sex Attractants - pharmacology
sex pheromone
sex pheromones
Sexual Behavior, Animal - drug effects
sterile insect technique
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Summary:Five novel homologous acetate derivatives of long-chain secondary alcohols and a related ketone were tested for their efficacy as contact mating stimulants for Cochliomyia hominivorax Coquerel (Diptera: Calliphoridae). Full copulatory behaviour at a high percentage was found in tests with racemic 6-acetoxy-19-methylnonacosane at 2.5-20 μg using fertile males from three strains. Males of two strains responded nearly as well to 7-acetoxy-15-methylnonacosane, but an older strain first colonized in 1992 did not respond to this compound. Few or no copulatory responses were obtained to the other secondary alcohol acetates and a related ketone. These two acetate derivatives are the first sex pheromones identified in a calliphorid fly. The threshold of response was also tested, but could not be pinpointed.
ISSN:0269-283X
1365-2915
DOI:10.1111/j.1365-2915.2006.00655.x