(Z)-11-Hexadecenal and (3Z,6Z,9Z)-tricosatriene: sex pheromone components of the red banded mango caterpillar Deanolis sublimbalis |
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Authors: | Gibb Andrew R Pinese Bruno Tenakanai David Kawi Annastasia P Bunn Barry Ramankutty Padmaja Suckling D Max |
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Affiliation: | (1) Horticulture and Food Research Institute of New Zealand Ltd., P.O. Box 51, Lincoln, New Zealand;(2) Horticulture and Food Research Institute of New Zealand Ltd., Private Bag 11 030, Palmerston North, New Zealand;(3) Horticulture and Food Research Institute of New Zealand Ltd., Private Bag 92 169, Mt Albert, Auckland, New Zealand;(4) Department of Primary Industries and Fisheries, Center for Tropical Agriculture, P.O. Box 1054, Mareeba, North Queensland, Australia;(5) National Agriculture Quarantine and Inspection Authority, P.O. Box 741, Waigani Drive, Port Moresby, Papua New Guinea;(6) National Agricultural Research Institute, Dry Lowlands Program, P.O. Box 1828, Laloki, Port Moresby, Papua New Guinea |
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Abstract: | The sex pheromone of the red banded mango caterpillar, Deanolis sublimbalis (Lepidoptera: Crambidae), a serious pest of the mango Mangifera indica (Anacardiaceae) in India and Southeast Asia and a recent invader into northern Australia, has been identified. Three candidate compounds were identified from pheromone gland extracts of female moths, using gas chromatography (GC), GC-electroantennographic detection and GC-mass spectrometric analyses, in conjunction with dimethyldisulfide derivatization. Field bioassays established that both (Z)-11-hexadecenal (Z11-16:Ald) and (3Z,6Z,9Z)-tricosatriene (3Z,6Z,9Z-23:Hy) were required for attraction of male D. sublimbalis moths, and 1,000 μg of a 1:1 mix of Z11-16:Ald and 3Z,6Z,9Z-23:Hy was more attractive to male moths than caged virgin females. However, the binary blend was only attractive when the isomeric purity of the monounsaturated aldehyde was >99%, suggesting that the (E)-isomer was inhibitory. Although (Z)-11-hexadecen-1-ol (Z11-16:OH) was tentatively identified in gland extracts, the addition of this compound to the binary blend did not increase the numbers of moths captured. The pheromone can now be used in integrated pest management strategies. Electronic Supplementary Material Supplementary material is available for this article at and is accessible for authorized users. |
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Keywords: | Red banded mango caterpillar Deanolis sublimbalis Odontiinae Crambidae Mango pest (Z)-11-hexadecenal (3Z,6Z,9Z)-tricosatriene Synergistic sex pheromone components Behavioral antagonist |
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