Volatiles associated with different flower stages and leaves of Acacia cyclops and their potential role as host attractants for Dasineura dielsi (Diptera: Cecidomyiidae)

►The volatile emissions from the leaves and the four floral phenophases differ quantitatively rather than qualitatively. ►4-Oxoisophorone, an uncommon floral volatile, is a prominent compound in the volatiles emitted from the yellow buds and the open flowers. ►Heptadecane and nonadecane are prominent compounds in the volatile emission from open flowers. ►Senescing flowers have low volatile emission rates compared to the other floral stages and leaves.