Identification, synthesis, and field evaluation of the sex pheromone from the citrus leafminer, Phyllocnistis citrella.
Using male antenna as the sensing element, three electroantennographic detection (EAD)-active peaks were detected from pheromone gland extracts of the citrus leafminer, Phyllocnistis citrella. Based on gas chromatography (GC)-mass spectrometry and GC-infrared data, the semiochemicals were tentatively identified as a novel pheromone, (Z,Z,E)-7,11,13-hexadecatrienal, a previously identified attractant, (Z,Z)-7,11-hexadecadienal, and (Z)-7-hexadecenal in a ratio of 30:10:1, respectively. Identification was confirmed with synthetic compounds, which gave retention times identical to those of the natural products on three capillary columns with polar and nonpolar phases. While traps baited only with the previously identified attractant alone did not catch any males in Brazil, binary and tertiary mixtures with the major constituents caught significantly more male moths than traps baited with five virgin females.
Leal
Walter S
WS
Maeda-Duffey Laboratory, Department of Entomology, University of California, Davis, CA 95616, USA. wsleal@ucdavis.edu
Parra-Pedrazzoli
Ana Lia
AL
Cossé
Allard A
AA
Murata
Yasuhiro
Y
Bento
José Maurício S
JM
Vilela
Evaldo F
EF
D000818:Animals; D002849:Chromatography, Gas; D009682:Magnetic Resonance Spectroscopy; D008297:Male; D013058:Mass Spectrometry; D009036:Moths / Q000737:chemistry*; D012724:Sex Attractants / Q000138:chemical synthesis / Q000737:chemistry* / Q000494:pharmacology; D013055:Spectrophotometry, Infrared
D012724:Sex Attractants