Sex pheromone of horse-chestnut leafminer Camneraria ohridella and its use in a pheromone-based monitoring system.
Gas chromatography combined with electroantennographic detection (GC-EAD), electroantennography (EAG), and wind-tunnel and field experiments were used to reinvestigate the composition of Cameraria ohridella (Lepidoptera, Gracillariidae, Lithocolletinae) sex pheromone. The GC-EAD experiments showed one EAD-active area corresponding to the major pheromone component. (8E,10Z)-tetradeca-8,10-dienal. The EAG experiments proved that (9E)-tetracedecenal and stereoisomers of (8E,10Z)-tetradeca-8,10-dienal exhibited significant electrophysiological activity and could, therefore, be considered as possible minor pheromone components. However, wind-tunnel and field experiments demonstrated that none of these compounds affect the efficacy of the main pheromone component. A monitoring system based on (8E,10Z)tetradeca-8,10-dienal was developed and used to study the flight activity of C. ohridella.
Department of Natural Products, Insect Chemistry Group, Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, Flemingovo nám. 2, 166 10 Prague 6, Czech Republic. blanka@uochb.cas.cz
B
B
Kalinová
A
A
Svatos
J
J
Kindl
O
O
Hovorka
I
I
Hrdý
J
J
Kuldová
M
M
Hoskovec
D000818:Animals; D002849:Chromatography, Gas; D004594:Electrophysiology; D004784:Environmental Monitoring; D005426:Flight, Animal; D007915:Lepidoptera / Q000737:chemistry*; D011157:Population Dynamics; D012724:Sex Attractants / Q000494:pharmacology*; D013237:Stereoisomerism; D014919:Wind
D012724:Sex Attractants