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
Jazyk angličtina Země Nizozemsko Médium print-electronic
Typ dokumentu časopisecké články
PubMed
28110082
DOI
10.1016/j.parint.2017.01.012
PII: S1383-5769(16)30465-2
Knihovny.cz E-zdroje
- Klíčová slova
- Culicidae, Essential oils, Green pesticides, Integrated Vector Management, Mosquito control, St. Louis encephalitis, West Nile,
- MeSH
- antagonismus léků MeSH
- borovice chemie MeSH
- Culex účinky léků MeSH
- elefantiáza filariová prevence a kontrola přenos MeSH
- encefalitida St. Louis prevence a kontrola přenos MeSH
- insekticidy chemie farmakologie MeSH
- komáří přenašeči účinky léků MeSH
- larva účinky léků MeSH
- listy rostlin chemie MeSH
- oleje prchavé chemie farmakologie MeSH
- oleje rostlin chemie farmakologie MeSH
- Pelargonium chemie MeSH
- plynová chromatografie s hmotnostně spektrometrickou detekcí MeSH
- Satureja chemie MeSH
- synergismus léků MeSH
- Verbenaceae chemie MeSH
- yzop chemie MeSH
- západonilská horečka prevence a kontrola přenos MeSH
- zvířata MeSH
- Check Tag
- zvířata MeSH
- Publikační typ
- časopisecké články MeSH
- Názvy látek
- insekticidy MeSH
- oleje prchavé MeSH
- oleje rostlin MeSH
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=25.6μL·L-1), followed by P. nigra var. italica (LC50=49.8μL·L-1) and A. citriodora (LC50=65.6μL·L-1), while the other essential oils showed LC50 values higher than 90μL·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=18.3μL·L-1). On the other hand, testing S. montana+P. nigra (1:1) an antagonistic effect was detected, leading to a LC50 (72.5μL·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.
Crop Research Institute Drnovska 507 161 06 Prague 6 Czech Republic
Department of Environmental Biology Sapienza University Rome Italy
Department of Parasitology Heinrich Heine University Düsseldorf Germany
Citace poskytuje Crossref.org
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