title: Sex pheromones of three citrus leafrollers, Archips atrolucens, Adoxophyes privatana, and Homona sp., inhabiting the Mekong Delta of Vietnam.
abstract: Archips atrolucens, Adoxophyes privatana, and Homona sp. are serious defoliators of citrus trees in the Mekong Delta of Vietnam. In order to establish a sustainable pest-management program for the three species, their female-produced sex pheromones were investigated by GC-EAD and GC-MS analyses, and the following multi-component pheromones were identified: (Z)-11-tetradecenyl acetate (Z11-14:OAc), (E)-11-tetradecenyl acetate (E11-14:OAc), and tetradecyl acetate (14:OAc) in a ratio of 64:32:4 for A. atrolucens; Z11-14:OAc and (Z)-9-tetradecenyl acetate (Z9-14:OAc) in a ratio of 92:8 for A. privatana; and Z11-14:OAc and (Z)-9-dodecenyl acetate (Z9-12:OAc) in a ratio of 96:4 for Homona sp. Each lure baited with synthetic components as a mimic of the natural pheromone attracted males of the target species specifically, indicating that each monounsaturated minor component plays a significant role for mating communication and reproductive isolation of the three species inhabiting the same citrus orchards. In an extract of the pheromone glands of A. atrolucens females, the content of 14:OAc was very low, but a synergistic effect was observed clearly when the saturated compound was mixed at the same level as the E11-14:OAc. The synthetic lures will provide useful tools for monitoring flights of adults of the three species.
authors.affiliation: College of Agriculture and Applied Biology, Can Tho University, Can Tho City, Vietnam. lvvang@ctu.edu.vn
authors.forename: Le
authors.initials: L
authors.lastname: Van Vang
authors.forename: Ho Nhu
authors.initials: HN
authors.lastname: Thuy
authors.forename: Chau Nguyen Quoc
authors.initials: CN
authors.lastname: Khanh
authors.forename: Pham Kim
authors.initials: PK
authors.lastname: Son
authors.forename: Qi
authors.initials: Q
authors.lastname: Yan
authors.forename: Masanobu
authors.initials: M
authors.lastname: Yamamoto
authors.forename: Utsugi
authors.initials: U
authors.lastname: Jinbo
authors.forename: Tetsu
authors.initials: T
authors.lastname: Ando
mesh_terms: D000819:Animal Communication; D000818:Animals; D057506:Arthropod Antennae / Q000378:metabolism*; D005260:Female; D008401:Gas Chromatography-Mass Spectrometry; D008297:Male; D009036:Moths / Q000378:metabolism*; D010675:Pheromones / Q000302:isolation & purification / Q000378:metabolism*; D012724:Sex Attractants / Q000302:isolation & purification / Q000378:metabolism*; D013045:Species Specificity; D014744:Vietnam
chemical_list: D010675:Pheromones; D012724:Sex Attractants; C010411:insect attractants