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Title in Portuguese: Effect of stalk and leaf extracts from euphorbiaceae species on Aedes aegypti (Diptera, Culicidae) larvae
Author: Lima, Maria Goretti Araújo de
Maia, Ismália Cassandra Costa
Sousa, Bruna Dantas de
Morais, Selene Maia de
Freitas, Sílvia Maria
Keywords: Aedes aegypti
Atividade larvicida
Issue Date: Jul-2006
Publisher: Revista do Instituto de Medicina Tropical de São Paulo
Citation: LIMA, M. G. A. et al. Effect of stalk and leaf extracts from euphorbiaceae species on Aedes aegypti (Diptera, Culicidae) larvae. Revista do Instituto de Medicina Tropical de São Paulo, São Paulo, v. 48, n. 4, p. 211-214, jul./ago. 2006.
Abstract: The objective of this study was to evaluate the larvicidal activity of essential oil aqueous solutions (hydrolates) obtained by steam distillation of stalks and leaves of Croton argyrophylloides, Croton nepetaefolius, Croton sonderianus and Croton zehntneri against Aedes aegypti larvae. Twenty-five larvae of third instar were placed in plastic beckers, containing the hydrolates (50 mL), in a four repetitions scheme. Water was used as control and the number of dead larvae was counted after 24 hours. The data obtained were submitted to Variance Analysis and Tukey test. Significant differences were observed among the hydrolates from different species and from different parts of each plant (p < 0.001). The hydrolates of stalk and leaf from C. nepetaefolius and C. zehntneri and leaf hydrolate of C. argyrophylloides presented 100% mortality against larvae. The compounds present in C. zenhtneri and C. nepetaefolius are oxygenated phenylpropanoids that are more soluble in water than the monoterpenes and sesquiterpenes detected in the oils of C. argyrophylloides and C. sonderianus. This study showed that all species analyzed presented compounds with larvicidal properties, with differences between each plant parts.
metadata.dc.type: Artigo de Periódico
ISSN: 0036-4665
Appears in Collections:GESLOG - Artigos publicados em revistas científicas

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