Sex attractant pheromone of the pecan nut casebearer (Lepidoptera: Pyralidae).
A female-produced sex pheromone for the pecan nut casebearer, Acrobasis nuxvorella Neunzig, has been identified from pheromone gland extracts of calling female moths. The compound (9E,11Z)-hexadecadienal [(9E,11Z)-16:Ald] was identified by coupled GC-EAD and retention time matches with a synthetic standard on four capillary GC columns of different polarities. Corroboration of the identification of (9E,11Z)-16:Ald by other analytical chemistry methods was not possible due to the minute quantities of pheromone extracted (< 1 picogram/female). In field studies, gray rubber septa impregnated with 100 micrograms of synthetic (9E,11Z)-16:Ald were attractive to male moths, whereas higher and lower doses were less attractive. The homologous (9E,11Z)-15:Ald was also slightly attractive while the more highly conjugated analogues, (9E,11Z,13Z)- and (9E,11Z,13E)-16:Ald, were not.
Millar
J G
JG
Department of Entomology, University of California, Riverside 92521, USA.
Knudson
A E
AE
McElfresh
J S
JS
Gries
R
R
Gries
G
G
Davis
J H
JH
D000818:Animals; D002849:Chromatography, Gas / Q000379:methods; D004594:Electrophysiology; D005260:Female; D009682:Magnetic Resonance Spectroscopy; D008297:Male; D009036:Moths / Q000737:chemistry* / Q000502:physiology; D010572:Pest Control, Biological; D012724:Sex Attractants / Q000032:analysis / Q000737:chemistry* / Q000502:physiology
D012724:Sex Attractants