Sustainable Pest Management Using Novel Nanoemulsions of Honeysuckle and Patchouli Essential Oils against the West Nile Virus Vector, <i>Culex pipiens</i>, under Laboratory and Field Conditions
Essential oils are natural plant products that are very interesting, as they are important sources of biologically active compounds. They comprise eco-friendly alternatives to mosquito vector management, particularly essential oil nanoemulsion. Therefore, the aim of this study is to evaluate the eff...
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MDPI AG
2023-10-01
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author | Wafaa M. Hikal Mohamed M. Baz Mohammed Ali Alshehri Omar Bahattab Rowida S. Baeshen Abdelfattah M. Selim Latifah Alhwity Rabaa Bousbih Maha Suleiman Alshourbaji Hussein A. H. Said-Al Ahl |
author_facet | Wafaa M. Hikal Mohamed M. Baz Mohammed Ali Alshehri Omar Bahattab Rowida S. Baeshen Abdelfattah M. Selim Latifah Alhwity Rabaa Bousbih Maha Suleiman Alshourbaji Hussein A. H. Said-Al Ahl |
author_sort | Wafaa M. Hikal |
collection | DOAJ |
description | Essential oils are natural plant products that are very interesting, as they are important sources of biologically active compounds. They comprise eco-friendly alternatives to mosquito vector management, particularly essential oil nanoemulsion. Therefore, the aim of this study is to evaluate the effectiveness of 16 selected essential oils (1500 ppm) in controlling mosquitoes by investigating their larvicidal effects against the larvae and adults of the West Nile virus vector <i>Culex pipiens</i> L. (Diptera: Culicidae); the best oils were turned into nanoemulsions and evaluated under laboratory and field conditions. The results show that honeysuckle (<i>Lonicera caprifolium</i>) and patchouli (<i>Pogostemon cablin</i>) essential oils were more effective in killing larvae than the other oils (100% mortality) at 24 h post-treatment. The nanoemulsions of honeysuckle (LC<sub>50</sub> = 88.30 ppm) and patchouli (LC<sub>50</sub> = 93.05 ppm) showed significantly higher larvicidal activity compared with bulk honeysuckle (LC<sub>50</sub> = 247.72 ppm) and patchouli (LC<sub>50</sub> = 276.29 ppm) oils. <i>L. caprifolium</i> and <i>P. cablin</i> (100% mortality), followed by <i>Narcissus tazetta</i> (97.78%), <i>Rosmarinus officinalis</i> (95.56%), and <i>Lavandula angustifolia</i> (95.55%), were highly effective oils in killing female mosquitoes, and their relative efficacy at LT<sub>50</sub> was 5.5, 5.3, 5.8, 4.1, and 3.2 times greater, respectively, than <i>Aloe vera</i>. The results of the field study show that the honeysuckle and patchouli oils and their nanoemulsions reduced densities to 89.4, 86.5, 98.6, and 97.0% at 24 h post-treatment, respectively, with persistence for eight days post-treatment in pools. Nano-honeysuckle (100% mortality) was more effective than honeysuckle oils (98.0%). Our results show that honeysuckle and patchouli oils exhibited promising larvicidal and adulticidal activity of <i>C. pipiens</i>. |
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spelling | doaj.art-f1914d6a9c5f43d7be5a1d1c3a0070962023-11-10T15:10:10ZengMDPI AGPlants2223-77472023-10-011221368210.3390/plants12213682Sustainable Pest Management Using Novel Nanoemulsions of Honeysuckle and Patchouli Essential Oils against the West Nile Virus Vector, <i>Culex pipiens</i>, under Laboratory and Field ConditionsWafaa M. Hikal0Mohamed M. Baz1Mohammed Ali Alshehri2Omar Bahattab3Rowida S. Baeshen4Abdelfattah M. Selim5Latifah Alhwity6Rabaa Bousbih7Maha Suleiman Alshourbaji8Hussein A. H. Said-Al Ahl9Department of Biology, Faculty of Science, University of Tabuk, Tabuk 71491, Saudi ArabiaDepartment of Entomology, Faculty of Science, Benha University, Benha 13518, EgyptDepartment of Biology, Faculty of Science, University of Tabuk, Tabuk 71491, Saudi ArabiaDepartment of Biology, Faculty of Science, University of Tabuk, Tabuk 71491, Saudi ArabiaDepartment of Biology, Faculty of Science, University of Tabuk, Tabuk 71491, Saudi ArabiaDepartment of Animal Medicine (Infectious Diseases), College of Veterinary Medicine, Benha University, Toukh 13736, EgyptDepartment of Biology, Faculty of Science, University of Tabuk, Tabuk 71491, Saudi ArabiaDepartment of Physics, Faculty of Science, University of Tabuk, Tabuk 71421, Saudi ArabiaDepartment of Biology, Faculty of Science, University of Tabuk, Tabuk 71491, Saudi ArabiaMedicinal and Aromatic Plants Research Department, Pharmaceutical and Drug Industries Research Institute, National Research Centre (NRC), 33 El-Behouth St., Dokki, Giza 12622, EgyptEssential oils are natural plant products that are very interesting, as they are important sources of biologically active compounds. They comprise eco-friendly alternatives to mosquito vector management, particularly essential oil nanoemulsion. Therefore, the aim of this study is to evaluate the effectiveness of 16 selected essential oils (1500 ppm) in controlling mosquitoes by investigating their larvicidal effects against the larvae and adults of the West Nile virus vector <i>Culex pipiens</i> L. (Diptera: Culicidae); the best oils were turned into nanoemulsions and evaluated under laboratory and field conditions. The results show that honeysuckle (<i>Lonicera caprifolium</i>) and patchouli (<i>Pogostemon cablin</i>) essential oils were more effective in killing larvae than the other oils (100% mortality) at 24 h post-treatment. The nanoemulsions of honeysuckle (LC<sub>50</sub> = 88.30 ppm) and patchouli (LC<sub>50</sub> = 93.05 ppm) showed significantly higher larvicidal activity compared with bulk honeysuckle (LC<sub>50</sub> = 247.72 ppm) and patchouli (LC<sub>50</sub> = 276.29 ppm) oils. <i>L. caprifolium</i> and <i>P. cablin</i> (100% mortality), followed by <i>Narcissus tazetta</i> (97.78%), <i>Rosmarinus officinalis</i> (95.56%), and <i>Lavandula angustifolia</i> (95.55%), were highly effective oils in killing female mosquitoes, and their relative efficacy at LT<sub>50</sub> was 5.5, 5.3, 5.8, 4.1, and 3.2 times greater, respectively, than <i>Aloe vera</i>. The results of the field study show that the honeysuckle and patchouli oils and their nanoemulsions reduced densities to 89.4, 86.5, 98.6, and 97.0% at 24 h post-treatment, respectively, with persistence for eight days post-treatment in pools. Nano-honeysuckle (100% mortality) was more effective than honeysuckle oils (98.0%). Our results show that honeysuckle and patchouli oils exhibited promising larvicidal and adulticidal activity of <i>C. pipiens</i>.https://www.mdpi.com/2223-7747/12/21/3682essential oilsplants bioactive compoundspolyphenolsnanoemulsions<i>Culex pipiens</i>honeysuckle |
spellingShingle | Wafaa M. Hikal Mohamed M. Baz Mohammed Ali Alshehri Omar Bahattab Rowida S. Baeshen Abdelfattah M. Selim Latifah Alhwity Rabaa Bousbih Maha Suleiman Alshourbaji Hussein A. H. Said-Al Ahl Sustainable Pest Management Using Novel Nanoemulsions of Honeysuckle and Patchouli Essential Oils against the West Nile Virus Vector, <i>Culex pipiens</i>, under Laboratory and Field Conditions Plants essential oils plants bioactive compounds polyphenols nanoemulsions <i>Culex pipiens</i> honeysuckle |
title | Sustainable Pest Management Using Novel Nanoemulsions of Honeysuckle and Patchouli Essential Oils against the West Nile Virus Vector, <i>Culex pipiens</i>, under Laboratory and Field Conditions |
title_full | Sustainable Pest Management Using Novel Nanoemulsions of Honeysuckle and Patchouli Essential Oils against the West Nile Virus Vector, <i>Culex pipiens</i>, under Laboratory and Field Conditions |
title_fullStr | Sustainable Pest Management Using Novel Nanoemulsions of Honeysuckle and Patchouli Essential Oils against the West Nile Virus Vector, <i>Culex pipiens</i>, under Laboratory and Field Conditions |
title_full_unstemmed | Sustainable Pest Management Using Novel Nanoemulsions of Honeysuckle and Patchouli Essential Oils against the West Nile Virus Vector, <i>Culex pipiens</i>, under Laboratory and Field Conditions |
title_short | Sustainable Pest Management Using Novel Nanoemulsions of Honeysuckle and Patchouli Essential Oils against the West Nile Virus Vector, <i>Culex pipiens</i>, under Laboratory and Field Conditions |
title_sort | sustainable pest management using novel nanoemulsions of honeysuckle and patchouli essential oils against the west nile virus vector i culex pipiens i under laboratory and field conditions |
topic | essential oils plants bioactive compounds polyphenols nanoemulsions <i>Culex pipiens</i> honeysuckle |
url | https://www.mdpi.com/2223-7747/12/21/3682 |
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