Loading…

Mosquito Larvicidal Activities and Chemical Compositions of the Essential Oils of Leucas Zeylanica Growing Wild in Vietnam

Dengue fever and dengue hemorrhagic fever are hyperendemic to Vietnam with frequent outbreaks and epidemics. Control of the vectors for dengue viruses, Aedes mosquitoes, is critical to maintain control of this disease. In this work, the essential oil of Leucas zeylanica was examined for larvicidal a...

Full description

Saved in:
Bibliographic Details
Published in:Natural product communications 2019-06, Vol.14 (6)
Main Authors: Hung, Nguyen Huy, Thi Hong Chuong, Nguyen, Satyal, Prabodh, Hieu, Ho Viet, Dai, Do Ngoc, Huong, Le Thi, Sinh, Le Hoang, Thi Bich Ngoc, Nguyen, Hien, Vu Thi, Setzer, William N.
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Dengue fever and dengue hemorrhagic fever are hyperendemic to Vietnam with frequent outbreaks and epidemics. Control of the vectors for dengue viruses, Aedes mosquitoes, is critical to maintain control of this disease. In this work, the essential oil of Leucas zeylanica was examined for larvicidal activity against the Aedes mosquito vector. Leucas zeylanica was collected from three different locations in Vietnam. The essential oil was obtained by hydrodistillation and analyzed by gas chromatography—mass spectrometry. The essential oil from the aerial parts of L. zeylanica was screened for mosquito larvicidal activity against Aedes aegypti and Aedes albopictus. The major components of L. zeylanica essential oil from Vietnam are β-caryophyllene, α-humulene, germacrene D, β-selinene, caryophyllene oxide, 1-tetradecanol, and phytol. Leucas zeylanica essential oil showed good larvicidal activity against both Ae. albopictus and Ae. aegypti with median lethal concentration—LC50 (24 hours) values of 67 and 44 μg/mL, respectively. Thus, L. zeylanica essential oil represents an inexpensive and environmentally benign agent for control of the dengue virus vectors.
ISSN:1934-578X
1555-9475
DOI:10.1177/1934578X19842675