Effects of essential oils on Aedes aegypti larvae:: Alternatives to environmentally safe insecticides

被引：160

作者：

Silva, W. J. ^{[1
]}

Doria, G. A. A. ^{[1
]}

Maia, R. T. ^{[4
]}

Nunes, R. S. ^{[1
]}

Carvalho, G. A. ^{[4
]}

Blank, A. F. ^{[3
]}

Alves, P. B. ^{[2
]}

Marcal, R. M. ^{[1
]}

Cavalcanti, S. C. H. ^{[1
]}

机构：

[1] Univ Fed Sergipe, Dept Physiol, BR-49000197 Aracaju, Brazil

[2] Univ Fed Sergipe, Dept Chem, BR-49000197 Aracaju, Brazil

[3] Univ Fed Sergipe, Dept Agr Engn, BR-49000197 Aracaju, Brazil

[4] Univ Fed Rural Pernambuco, Parasit Dis Lab, Vet Dept, BR-52171900 Recife, PE, Brazil

来源：

BIORESOURCE TECHNOLOGY | 2008年 / 99卷 / 08期

关键词：

Hyptis ftuticosa; Lippia gracilis; Hyptis pectinata; larvicidal; carvacrol;

D O I：

10.1016/j.biortech.2007.05.064

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

The essential oils from leaves of Hyptis fruticosa (Lamiaceae) Salzm., H. pectinata (Lamiaccae) Poit., and Lippia gracilis (Verbenaceae) HBK were investigated for their larvicidal activity against Aedes aegypti and analyzed by GC/MS. Fifty-nine compounds, representing 91.28-98.39% of the essential oils, have been identified. A standard solution was used to make 20 mL solutions ranging from 30 to 2000 ppm. Twenty larvae between third and fourth stages were added to the essential oil solution. A mortality count was conducted 24 h after treatment. Essential oils LC50 and their confidence limits at 95% probability were calculated by the methods of Reed-Muench and Pizzi, respectively. The essential oil of Lippia gracilis showed potent insecticidal effect against Aedes aegypti larvae, the vector of dengue fever. Carvacrol and caryophyllene oxide were the main responsible for the activity of L. gracilis and H. pectinata. Minor compounds are probably acting synergistically to achieve H. fruiticosa activity. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：3251 / 3255

页数：5

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