| Title: | "3,13-Dimethylheptadecane: Major sex pheromone component of the western false hemlock looper,Nepytia freemani Munroe (Lepidoptera: Geometridae)" |
| Author(s): | Gries G; King GG; Gries R; Wimalaratne PD; Gray TG; Shepherd RF; Li J; Slessor KN; Khaskin G; |
| Address: | "Department of Biological Sciences, Centre for Pest Management, USA" |
| ISSN/ISBN: | 0098-0331 (Print) 0098-0331 (Linking) |
| Abstract: | "3,13-Dimethylheptadecane (3,13-dime-17Hy) is the major sex pheromone component of the western false hemlock looper (WFHL),Nepytia freemani Munroe. It was identified in extracts of female pheromone glands by coupled gas chromatographic-electroantennographic detection (GC-EAD) and coupled GC-mass spectroscopy (GC-MS). Traps baited with 100mug of 3,13-dime-17Hy attracted large numbers of male WFHL. Of five additional candidate pheromone dimethylated hydrocarbons, only 3,13-dimethylhexadecane attracted male WFHL. However, neither 3,13-dime-16Hy nor the other four compounds enhanced attraction to 3,13-dime-17Hy when tested in binary or ternary combination at respective ratios of 100ratio10, 100ratio1, or 100ratio1ratio1. Identification of the complete WFHL sex pheromone requires structural elucidation of all 12 EAD-active components in gland extracts, determination of their chirality, and field testing of antennally active isomers in appropriate combinations and ratios. Stereoisomeric 3,13-dime-17Hy as trap bait may already be used to monitor WFHL populations" |
| Notes: | "PubMed-not-MEDLINEGries, G King, G G Gries, R Wimalaratne, P D Gray, T G Shepherd, R F Li, J Slessor, K N Khaskin, G eng 1993/07/01 J Chem Ecol. 1993 Jul; 19(7):1501-10. doi: 10.1007/BF00984893" |
