| Title: | "Sex attractant pheromone of damson-hop aphid Phorodon humuli (Homoptera, aphididae)" |
| Author(s): | Campbell CA; Dawson GW; Griffiths DC; Pettersson J; Pickett JA; Wadhams LJ; Woodcock CM; |
| Address: | "AFRC Institute of Horticultural Research, East Mailing, ME19 6BJ, Maidstone, Kent, UK" |
| ISSN/ISBN: | 0098-0331 (Print) 0098-0331 (Linking) |
| Abstract: | "Behavioral studies using an olfactometer demonstrated that sexual females (oviparae) of the damson-hop aphid,Phorodon humuli, release a pheromone to which males respond. Volatiles produced by the oviparae were analyzed by coupled gas chromatography-single cell recording from the secondary rhinaria on the male antenna and showed the presence of one peak with major activity. Coupled gas chrornatography-mass spectrometry suggested a nepetalactol, which was shown to have the 4aR, 7S, 7aS stereochemistry by synthesis from the corresponding nepetalactone isolated from the labiate plantNepeta mussinii. Although the stereochemistry at carbon-1 is not yet established, a synthetic sample comprising ca. 70% 1S and 30% 1R attracted highly significant numbers of males to water traps placed within and adjacent to a hop garden. Initial studies also indicated attraction of males in both the olfactometer and in the field by volatiles from the primary host" |
| Notes: | "PubMed-not-MEDLINECampbell, C A Dawson, G W Griffiths, D C Pettersson, J Pickett, J A Wadhams, L J Woodcock, C M eng 1990/12/01 J Chem Ecol. 1990 Dec; 16(12):3455-65. doi: 10.1007/BF00982110" |
