Larvicidal Activities of Juniperus chinensis var. kaizuka Leaf Essential Oil and Its Constituents Against Dengue Vector Mosquitoes, Aedes aegypti and Ae. albopictus
Journal
Plants
Journal Volume
14
Journal Issue
21
ISSN
2223-7747
Date Issued
2025-10-30
Author(s)
Chang, Ji-Yun
Huang, Yu-Mei
Chang, Yu-Yi
Huang, Chong-Syuan
Ho, Yu-Tung
Wang, Sheng-Yang
Chang, Mei-Ling
Abstract
is one of the vital genera of the Cupressaceae family; many species (juniper) have served as traditional folk medicines. The aims of this study are to analyze its chemical composition and to evaluate the mosquito larvicidal activity of leaf essential oil and its constituents. The constituents of leaf essential oil were analyzed by GC-MS. Leaf essential oil is mainly composed of hydrocarbon monoterpenes and, secondly, oxygenated monoterpenes. Leaf essential oil exhibited good brine shrimp lethality activity, which is highly correlated with larvicidal activity, with the LC of 49.89 μg/mL. Leaf essential oil showed a strong mosquito larvicidal activity against two Dengue vector mosquitoes, and , the LC values for both species were lower than 50 μg/mL. Among the major constituents of leaf essential oil, compounds limonene, sabinene, and β-myrcene also exhibited a significant larvicidal effect. Through these investigations, it is expected that leaf essential oil from var. and its constituents are of potential use as environmental control chemicals against Dengue vector mosquitoes.
Subjects
Aedes aegypti
Aedes albopictus
Juniperus chinensis var. kaizuka
brine shrimp lethality activity
mosquito larvicidal activity
Publisher
Multidisciplinary Digital Publishing Institute (MDPI)
Type
journal article