title: Sex pheromone of lucerne leafroller,Merophyas divulsana (Walker) (Lepidoptera: Tortricidae): Evidence for two distinct populations.
abstract: When specimens of the lucerne leafroller,Merophyas divulsana, were sampled from an area with a history of crop damage, they were found to have (E)-11-tetradecenyl acetate, hexadecyl acetate, and tetradecyl acetate as principal components of the pheromone gland. A synthetic mixture of these compounds proved to be a successful lure in delta traps. On the other hand, apparently identical moths collected in areas with no history of crop damage were found to have (Z)-11-tetradecenyl acetate as the major component of the sex pheromone gland. The distribution of the two moths provides the basis for a plausible explanation of the regional pest activity reported forM. divulsana.
authors.affiliation: Division of Entomology, CSIRO, GPO Box 1700, 2601, Canberra, A.C.T., Australia.
authors.forename: C P
authors.initials: CP
authors.lastname: Whittle
authors.forename: T E
authors.initials: TE
authors.lastname: Bellas
authors.forename: A L
authors.initials: AL
authors.lastname: Bishop