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The Mosquito Larvicidal Activity of Essential Oils from Cymbopogon and Eucalyptus Species in Vietnam
Open AccessArticle

Larvicidal and Repellent Activity of Mentha arvensis L. Essential Oil against Aedes aegypti

1
Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Lac Hong University, Dong Nai 810000, Vietnam
2
Department of Traditional Medicine, Faculty of Pharmacy, Lac Hong University, Dong Nai 810000, Vietnam
*
Author to whom correspondence should be addressed.
Insects 2020, 11(3), 198; https://doi.org/10.3390/insects11030198
Received: 5 March 2020 / Revised: 20 March 2020 / Accepted: 21 March 2020 / Published: 22 March 2020
(This article belongs to the Special Issue Natural Substances against Insect Pests: Assets and Liabilities)
Dengue is one of the most dangerous vector-borne diseases transmitted by Aedes mosquitoes. The use of mosquito repellents to protect human hosts and insecticides to reduce the mosquito population is a crucial strategy to prevent the disease. Here, we reported larvicidal and repellent activities of Mentha arvensis L. essential oil against Aedes aegypti, the main vector of the disease. The essential oil was extracted by hydro-distillation from the aromatic plant grown in Vietnam. The yield was 0.67% based on the weight of fresh leaves. The essential oil was analyzed by gas chromatography-mass spectrometry (GC-MS). The main components were menthol (66.04%), menthyl acetate (22.19%), menthone (2.51%), and limonene (2.04%). Toxicity test on Aedes aegypti larvae showed that the median lethal concentrations, LC50 and LC90 were 78.1 ppm (part per million) and 125.7 ppm, respectively. Besides, the essential oil showed excellent repellency on Aedes aegypti mosquitoes. At 25%, 50%, and 100% concentration, the respective complete protection times (CPTs) were 45 min, 90 min, and 165 min. When adding 5% vanillin to the essential oil (25%), the complete protection time of the essential oil increased up to 120 min. In conclusion, the EO from Mentha arvensis L. has been shown to be a promising natural larvicide and repellent against Aedes aegypti mosquitoes. View Full-Text
Keywords: Mentha arvensis; essential oil; Aedes aegypti; Larvicidal activity; mosquito repellent Mentha arvensis; essential oil; Aedes aegypti; Larvicidal activity; mosquito repellent
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Manh, H.D.; Tuyet, O.T. Larvicidal and Repellent Activity of Mentha arvensis L. Essential Oil against Aedes aegypti. Insects 2020, 11, 198.

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