||First Report on Chemical Composition and Acaricidal Activity on the Cattle Tick Rhipicephalus microplus of Essential Oil from Monanthotaxis parvifolia (Oliv.) Verdc.
DEDOME Ludolphe ,
ALITONOU GUY ALAIN ,
YEDOMONHAN HOUNNANKPON ,
||American Journal of Applied Chemistry
||The chemical composition of the essential oil obtained by hydrodistillation from leaves of Monanthotaxis
parvifolia were analyzed by GC and GC/MS. Thirty compounds representing 99.9 % of oil were identified. This oil is rich in
sesquiterpenes with oxygenated sesquiterpenes (87.1%) following by hydrocarbons compounds (10.8%). Caryophyllene oxide
(50.5%), 14-hydroxy-9-epi-(E)-caryophyllene (7.6%) and β-eudesmol (7.3%) were the main components. The acaricidal
activity of this oil against Rhipicephalus microplus was assessed by modified Larval Packet Test (LPT) and Adult Immersion
Test (AIT) with oil concentrations of 5%, 10% and 20% (v/v). Mortality percentages of larvae were 89.51%, 82.18% and
75.01% respectively at 20%, 10% and 5% dilutions. Monanthotaxis parvifolia leave’s essential oil has considerably reduced
egg laying and induced a low reproductive index (0.067%) at 20% dilution.
||Monanthotaxis parvifolia, Acaricidal Activity, Essential Oil.
||53 - 56