The fumigant toxicity of various volatile constituents of essential oils extracted from sixteen
Korean spices and medicinal plants towards the rice weevil, Sitophilus oryzae L
(Coleoptera: Curculionidae), was determined. The most potent toxicity was found in the
essential oil from Mentha arvensis L var piperascens (LC50= 45.5 µl litre− 1 air). GC–MS
analysis of essential oil from M arvensis showed it to be rich in menthol (63.2%), menthone
(13.1%) and limonene (1.5%), followed in abundance by β‐pinene (0.7%), α‐pinene (0.6%) …

The fumigant toxicity of various volatile constituents of essential oils extracted from sixteen
Korean spices and medicinal plants towards the rice weevil, S. oryzae (Coleoptera:
Curculionidae), was determined. The most potent toxicity was found in the essential oil from
Mentha arvensis var. piperascens (LC50= 45.5 µl litre-1 air). GC-MS analysis of essential oil
from M. arvensis showed it to be rich in menthol (63.2%), menthone (13.1%) and limonene
(1.5%), followed in abundance by β-pinene (0.7%), α-pinene (0.6%) and linalool (0.2%) …