title: Fungal volatiles: Semiochemicals for stored-product beetles (Coleoptera: Cucujidae).
abstract: Responses by five species of cucujid grain beetles (mixed-sex adults) to various volatiles were assessed by means of a two-choice, pitfall olfactometer. The test volatiles were short-chain alcohols and ketones known to be produced by fungi. Both racemic and chiral 1-octen-3-ols were strong attractants forCryptolestes ferrugineus (Stephens), as had been found previously forOryzaephilus surinamensis (L.),O. mercator (Fauvel), andAhasverus advena (Waltl). 3-Methylbutanol was another good attractant for these four cucujids, and it was the only test compound to whichCathartus quadricollis (Guér.) responded positively. 1-Octen-3-one, racemic 3-octanol, and 3-octanone showed various degrees of attractiveness for the former four species of cucujids.O. surinamensis was the only species of test beetle to show much positive response to 2-phenylethanol and ethanol. ForO. mercator andO. surinamensis, 3-methylbutanol enhanced positive response to their respective cucujolide aggregation pheromones.
authors.affiliation: Department of Chemistry, Simon Fraser University, V5A 1S6, Burnaby, British Columbia, Canada.
authors.forename: A M
authors.initials: AM
authors.lastname: Pierce
authors.forename: H D
authors.initials: HD
authors.lastname: Pierce
authors.forename: J H
authors.initials: JH
authors.lastname: Borden
authors.forename: A C
authors.initials: AC
authors.lastname: Oehlschlager