1,8-Cineole was identified as one of the electrophysiologically active
components of the volatiles from banana cultivars susceptible to the
banana weevil. It was also shown to be an attractant for the banana we
evil Comopolites sordidus in laboratory behavioural bioassays. The res
istant cultivar did not contain 1,8-cineole. beta-Phellandrene, which
exhibited electrophysiological activity, but did not show any attracti
on to the banana weevil, was found only in the resistant banana cultiv
ar.