(Z)-7-tricosene and monounsaturated ketones as sex pheromone components of the Australian guava moth Coscinoptycha improbana: identification, field trapping, and phenology

Journal of Chemical Ecology
Andrew R GibbJ J Dymock

Abstract

Pheromone gland extracts of the Australian guava moth Coscinoptycha improbana (Lepidoptera: Carposinidae), contained four compounds that elicited responses from male moth antennae in gas chromatography-electroantennogram detection (GC-EAD) analyses. These were identified by GC-mass spectrometry as (Z)-7-tricosene (Z7-23Hy), (Z)-7-octadecen-11-one (Z7-11-one-18Hy), (Z)-7-nonadecen-11-one (Z7-11-one-19Hy), and (Z)-7-tricosen-11-one (Z7-11-one-23Hy) at a ratio of 65:23.5:1.5:10, respectively. Z7-23Hy, Z7-11-one-18Hy, and Z7-11-one-23Hy have not previously been reported as lepidopteran sex pheromone components. Z7-11-one-18Hy was active as a single component, and was synergized by Z7-11-one-23Hy but not Z7-11-one-19Hy, although the latter compound was weakly attractive as a single component. Addition of Z7-23Hy further increased attraction. The amount of the major pheromone component, Z7-11-one-18Hy in female pheromone gland extracts was estimated to be 16.4 ng/female (N = 8). Phenological data gathered over a 12-mo period in 2002 and 2003 using the binary blend indicated that moths are active throughout the year. The pheromone has already been employed to monitor the spread of C. improbana in New Zealand and detect its presence in...Continue Reading

References

Jul 18, 2001·Journal of the American Chemical Society·C FerreriC Chatgilialoglu

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Citations

Jul 11, 2016·Journal of Chemical Ecology·David Maxwell SucklingJames T S Walker
Jul 30, 2020·Journal of Chemical Ecology·Andrew M TwidleD Max Suckling
Dec 12, 2020·Journal of Pesticide Science·Tetsu Ando, Masanobu Yamamoto
Aug 14, 2020·Journal of Agricultural and Food Chemistry·Andrew M TwidleDavid Barker

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