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Identification of sex-pheromone components for Acleris fimbriana (Lepidoptera: Tortricidae)

Published online by Cambridge University Press:  31 May 2012

Y-X Liu  and
X-Z Meng
Y-X Liu
Affiliation:
The State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, The People's Republic of China 100080
X-Z Meng*
Affiliation:
The State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, The People's Republic of China 100080
*
1 Corresponding author (e-mail: [email protected]).
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Abstract

Four compounds were identified from female sex-pheromone gland extracts of Acleris fimbriana Merick, an important pest in northern fruit orchards of China, by gas chromatography, gas chromatography – mass spectrometry, and flight-tunnel and field-trapping tests. These compounds were (E)-11,13-tetradecadienal (E11,13-14:Ald), (E)-11,13-tetradecadien-1-ol (E11,13-14:OH), (E)-11-tetradecenyl acetate (E11-14:Ac), and (E)-11,13-tetradecadienyl acetate (E11,13-14:Ac). In field-trapping tests, traps baited with E11,13-14:Ald alone produced the highest trap captures of male A. fimbriana, but the other three individual compounds did not capture any mates. Addition of E11,13-14:Ac to E11,13-14:Ald enhanced trap capture, whereas addition of E11-14:Ac had no effect. A ternary blend of E11,13-14:Ald, E11,13-14:Ac, and E11-l4:Ac in a 6:4:1 ratio captured 7.5 times mean males per trap than virgin females. E11,13-14:OH inhibited trap capture when it was added to E11,13-14:Ald or the ternary blend. This pheromone could be used to monitor populations of A. fimbriana and to control this important pest of fruits in China.

Résumé

Quatre substances ont été identifiées dans des extraits de glandes à phéromones sexuelles de la femelle d’Acleris fimbriana Merick, un important ravageur des vergers du nord de la Chine, par chromatographie en phase gazeuse, par chromatographie en phase gazeuse – spectrométrie de masse et par des tests dans des tunnels de vol et en nature. Il s’agit du (E)-11,13-tétradécadiénal (E11,13-14 : Ald), du (E)-11,13-tétradécadién-1-ol, (E11,13-14 : OH), de l’acétate de (E)-11-tétradécényle (E11-14 : Ac) et de l’acétate de (E)-11,13-tétradécadiényle (E11,13-14 : Ac). Dans les tests de piégeage sur le terrain, ce sont les pièges garnis de E11,13-14 : Ald seul qui ont capturé le plus de mâles d’A. fimbriana, alors que les trois autres substances utilisées seules n’ont attiré aucun mâle. L’addition de E11,13-14 : Ac a entraîné une augmentation significative des captures, mais l’addition de E11-14 : Ac est restée sans effet. Un mélange ternaire de E11,13-14 : Ald, de E11,13-14 : Ac et de E11-14 : Ac dans des proportions de 6 : 4 : 1 a attiré en moyenne 7,5 fois plus de mâles par cage que ne l’ont fait des femelles vierges. E11,13-14 : OH inhibe le pouvoir d’attraction de E11,13-14 : Ald ou du mélange ternaire. Cette phéromone pourrait servir à évaluer les populations d’A. fimbriana et concourir à la lutte contre cet important ravageur des fruits en Chine.

[Traduit par la Rédaction]

Type
Articles
Information
The Canadian Entomologist , Volume 134 , Issue 4 , August 2002 , pp. 511 - 518
Copyright
Copyright © Entomological Society of Canada 2002

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