%0 Journal Article
%T Actividad insecticida de una emulsi車n aceite/agua del aceite esencial de Eucalyptus tereticornis Insecticide activity of oil/water emulsion of Eucalyptus tereticornis essential oil
%A Walter Murillo-Arango
%A Pedronel Araque Mar赤n
%A Beatriz Henao Murillo
%A Carlos A Pel芍ez Jaramillo
%J Revista Cubana de Plantas Medicinales
%D 2013
%I ECIMED
%X Introducci車n: el aceite esencial extra赤do de especies del g谷nero Eucalyptus, entre estas Eucalyptus tereticornis, ofrece un importante potencial para el control de hongos pat車genos e insectos plaga y de importancia m谷dica. Objetivo: evaluar la actividad anti-insecto (aguda, cr車nica y repelente) de una emulsi車n aceite/agua del aceite esencial de Eucalyptus tereticornis, en funci車n de su composici車n qu赤mica y fraccionamiento. M谷todos: se prepararon emulsiones aceite/agua con aceite esencial previamente extra赤do, separado y caracterizado, y 2 de sus fracciones (A y B). Se evalu車 su actividad anti-insecto mediante bioensayos con Drosophila melanogaster. Se determin車 la fitotoxicidad foliar sobre pl芍ntulas de Phaseolus vulgaris. Resultados: el aceite completo mostr車 considerable actividad repelente e insecticida aguda que guarda relaci車n con su composici車n qu赤mica. La actividad insecticida aguda de las fracciones disminuy車 de manera notable con respecto a la mostrada por el aceite completo, sin embargo, no se observaron efectos significativos sobre la actividad repelente. En ning迆n caso se present車 fitotoxicidad foliar sobre frijol. Conclusi車n: el aceite esencial de esta especie de eucalipto posee actividad anti-insecto considerable y podr赤a formularse directamente como insecticida para el control de insectos de inter谷s agr赤cola y m谷dico. Introduction: the essential oil extracted from Eucalyptus species, including Eucalyptus tereticornis, offers significant potential for control of fungal pathogens and insect pests and medical importance. Objectives: to evaluate the anti-insect activity (acute, chronic and repellent) of an oil/water emulsion of Eucalyptus tereticornis essential oil in terms of their chemical composition. Methods: oil/water emulsion was prepared with essential oil previously extracted, separated and characterized, and two of its fractions (A and B). Their anti-insect activity was evaluated through bioassays on Drosophila melanogaster. Foliar phytotoxicity was evaluated on seedlings of Phaseolus vulgaris. Results: the complete oil showed considerable acute repellent and insecticide activity related to its chemical composition. The acute insecticidal activity of the fractions decreased significantly if compare with that of the whole oil , but neither significant effects on the repellent activity nor phytotoxicity on the bean leaves were observed. Conclusions: the essential oil of this eucalyptus species has considerable anti-insect properties and could be formulated as an insecticide for the control of insects of agricultural and medical signif
%K Eucalyptus tereticornis
%K aceites esenciales
%K actividad anti-insecto
%K emulsiones aceite/agua
%K Eucalyptus tereticornis
%K essential oils
%K anti-insects activity
%K oil/water emulsion
%U http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1028-47962013000100013