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Revista Cubana de Medicina Tropical

Print version ISSN 0375-0760On-line version ISSN 1561-3054


LEYVA, Maureen; TACORONTE, Juan E.  and  MARQUETTI, María del Carmen. Chemical composition and lethal effect of essential oil from Pimenta racemosa (Myrtales: Myrtaceae) on Blatella germanica (Dictyoptera: Blattellidae). Rev Cubana Med Trop [online]. 2007, vol.59, n.2. ISSN 0375-0760.

Gas chromatography test and Gas chromatography/mass spectrometry test allowed examining the essential oil from Pimenta racemosa leaves (Mill.) J.W. Moore (Myrtales: Myrtaceae). A total of 26 volatile compounds representing 99.5 % of the whole composition were identified, being ternipen 4-ol and 1,8 cineol those having the largest portions. Lab bioassays were performed with 5 different oil doses on Blattella germanica. DL50=15.55 and DL95=48.16 % were estimated by a probit-log analysis as well as diagnostic dose of 2 µg/insect of 50 % oil that is recommended for field surveillance of the use of various formulations in insect control programs.

Keywords : Essential oil; monoterpens; cockroach; Blattella germanica; control.

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