ISSN:
1570-7458
Keywords:
rice leaffolder
;
Cnaphalocrocis medinalis
;
Lepidoptera
;
Pyralidae
;
(Z)-11-hexadecenyl acetate
;
(Z)-13-octadecenyl acetate
;
(Z)-13-octadecen-1-ol
;
octadecyl acetate
;
sex pheromone
;
attractant
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract Analysis of ovipositor washings from virgin femaleCnaphalocrocis medinalis Guenée (Lepidoptera: Pyralidae) of Indian origin by linked gas chromatography and electroantennography indicated the presence of three electrophysiologically-active compounds. These were identified on the basis of their gas chromatographic retention times and mass spectra as (Z)-11-hexadecenyl acetate, (Z)-13-octadecenyl acetate and (Z)-13-octadecen-1-ol with (Z)-13-octadecenyl acetate present in amounts of between 0.25 and 1.5 ng per ovipositor and the other two components at less than 10% of this. Trace quantities of octadecyl acetate were identified by mass spectrometry but no electroantennographic responses were observed to this compound. Field trials conducted with a range of blends of the three electrophysiologically-active compounds showed that blends containing between 5% and 30% (Z)-11-hexadecenyl acetate in (Z)-13-octadecenyl acetate dispensed from either white rubber septa or polythene vials were more attractive to male moths than a virgin female moth. Addition of (Z)-13-octadecen-1-ol reduced attractiveness to male moths in the blends and concentrations tested.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02381782
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