Acute larvicidal toxicity of five essential oils (Pinus nigra, Hyssopus officinalis, Satureja montana, Aloysia citrodora and Pelargonium graveolens) against the filariasis vector Culex quinquefasciatus: Synergistic and antagonistic effects

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027006%3A_____%2F17%3A00003831" target="_blank" >RIV/00027006:_____/17:00003831 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1016/j.parint.2017.01.012" target="_blank" >http://dx.doi.org/10.1016/j.parint.2017.01.012</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.parint.2017.01.012" target="_blank" >10.1016/j.parint.2017.01.012</a>

Result language

angličtina

Original language name

Acute larvicidal toxicity of five essential oils (Pinus nigra, Hyssopus officinalis, Satureja montana, Aloysia citrodora and Pelargonium graveolens) against the filariasis vector Culex quinquefasciatus: Synergistic and antagonistic effects

Original language description

Mosquito vector control is facing a number of important and timely challenges, mainly due to the rapid development of pesticide resistance and environmental concerns. In this scenario, screening of botanical resources for their mosquitocidal activity may offer effective and eco-friendly tools against Culicidae vectors. Culex quinquefasciatus Say (Diptera: Culicidae) is a vector of lymphatic filariasis and of dangerous arboviral diseases, such as West Nile and St. Louis encephalitis. In this study, the chemical composition of five essential oils obtained from different plants, namely Pinus nigra J.F. Arnold var. italica (Pinaceae), Hyssopus officinalis L. subsp. aristatus (Lamiaceae), Satureja montana L. subsp. montana (Lamiaceae), Aloysia citriodora Palau (Verbenaceae) and Pelargonium graveolens L'Hér (Geraniaceae), was investigated by GC–MS analysis. Furthermore, it was evaluated their acute toxicity on larvae of C. quinquefasciatus. Then, the most effective oils were selected, in order to focus on the potential synergistic and antagonistic effects, testing them in binary mixtures on C. quinquefasciatus larvae. Results showed that the higher effectiveness was obtained by S. montana subsp. montana essential oil (LC50 = 25.6 µL·L- 1), followed by P. nigra var. italica (LC50 = 49.8 µL·L- 1) and A. citriodora (LC50 = 65.6 µL·L- 1), while the other essential oils showed LC50 values higher than 90 µL·L- 1. The larvicidal effectiveness can be enhanced by preparing simple binary mixtures of essential oils, such as S. montana + A. citriodora (ratio 1:1), which showed higher larvicidal toxicity (LC50 = 18.3 µL·L- 1). On the other hand, testing S. montana + P. nigra (1:1) an antagonistic effect was detected, leading to a LC50 (72.5 µL·L- 1) higher than the LC50 values calculated for the two oils tested separately. Overall, our results add useful knowledge to allow the employ of synergistic essential oil blends as effective, cheap and eco-friendly mosquito larvicides.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

GF - Diseases, pests, weeds and plant protection

OECD FORD branch

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Project

<a href="/en/project/QJ1510160" target="_blank" >QJ1510160: New technologies of the gaining of bioactive compounds from medicinal and aromatic plants as a sources of active substances of botanical pesticides and food supplements.</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Parasitology International

ISSN

1383-5769

e-ISSN

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Volume of the periodical

66

Issue of the periodical within the volume

2

Country of publishing house

JP - JAPAN

Number of pages

6

Pages from-to

166-171

UT code for WoS article

000394476700026

EID of the result in the Scopus database

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