Two phenylpropanoid glucosides, namely acetylmartynoside A and 4”-O-acetylmartynoside, isolated from Aegiphila obducta (Verbenaceae) were studied for insect antifeedant activity against fourth-instar larvae of Chilo partellus (Lepidoptera: Pyralidae). Acetylmartynoside A showed weak antifeedant activity at all the concentrations tested while 4”-O-acetylmartynoside showed strong antifeedant activity, particularly at the higher concentrations of 400 and 500 μg/disk.