Chemical Composition and Acaricidal Activity of the Essential Oils From Fruits and Leaves of Protium bahianum Daly.

The essential oils of Protium bahianum fruit and leaves obtained through water distillation were analyzed by GC-FID and GC/MS, and their acaricidal activity was also evaluated using Tetranychus urticae as model. Twentynine components were identified in the oils. The main component of the fruit oil was a-pinene (34.0%) whereas aromadendrene (20.3%) was the major component of the leaf oil. The leaf oil exhibited a higher lethality rate with LC50 of 3.5 mL/L of air after 24 h exposure. The fruits oil showed LC50 of 9.1 mL/L of air and was repellent at 1% concentration. [ABSTRACT FROM AUTHOR]