Larvicidal activities of hydro-ethanolic extracts of three Cameroonian medicinal plants against Aedes albopictus
Objective: To investigate the larvicidal activity of Syzygium guineense (Myrtaceae) (S. guineense), Monodora myristica and Zanthoxylum heitzii (Rutaceae) (Z. heitzii) extracts against Aedes albopictus (Ae. albopictus). Methods: The larvicidal activity of the hydro-ethanolic extracts from these plant...
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| Format: | Article |
| Language: | English |
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Wolters Kluwer Medknow Publications
2016-11-01
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| Series: | Asian Pacific Journal of Tropical Biomedicine |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2221169115307000 |
| _version_ | 1811300433166073856 |
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| author | Tankeu Nzufo Francine Biapa Nya Prosper Cabral Pieme Constant Anatole Moukette Moukette Bruno Nanfack Pauline Ngogang Yonkeu Jeanne |
| author_facet | Tankeu Nzufo Francine Biapa Nya Prosper Cabral Pieme Constant Anatole Moukette Moukette Bruno Nanfack Pauline Ngogang Yonkeu Jeanne |
| author_sort | Tankeu Nzufo Francine |
| collection | DOAJ |
| description | Objective: To investigate the larvicidal activity of Syzygium guineense (Myrtaceae) (S. guineense), Monodora myristica and Zanthoxylum heitzii (Rutaceae) (Z. heitzii) extracts against Aedes albopictus (Ae. albopictus).
Methods: The larvicidal activity of the hydro-ethanolic extracts from these plant species was assessed at three different concentrations (50, 100 and 200 mg/L) on first-instar of Ae. albopictus larvae in comparison with untreated controls. Mortality rate was recorded daily for a period of 12 days. The values of LC50 and lethal time killing 50% of the tested individuals (LT50) were calculated using the log-probit analysis.
Results: The root extract of S. guineense exhibited the best activity with 100% mortality after 8 days of treatment at 200 mg/L, followed by the fruit extract of Z. heitzii with 83.33% mortality at the same concentration. Nonetheless, larvae were most susceptible to the fruit extract of Z. heitzii both in terms of LC50 (39.89 mg/L) and LT50 (145.68 h). A statistically significant difference between the control and the group treated at 200 mg/L was noticed in all the extracts.
Conclusions: The present study shows that the hydro-ethanolic extracts of S. guineense, Monodora myristica and Z. heitzii tested have significant larvicidal activity. These preliminary results are of great interest and some of these plant species can be proposed for the formulation of new bioinsecticides to control Ae. albopictus populations. |
| first_indexed | 2024-04-13T06:51:05Z |
| format | Article |
| id | doaj.art-2cf48889dbca427f8a940dec43eb276c |
| institution | Directory Open Access Journal |
| issn | 2221-1691 |
| language | English |
| last_indexed | 2024-04-13T06:51:05Z |
| publishDate | 2016-11-01 |
| publisher | Wolters Kluwer Medknow Publications |
| record_format | Article |
| series | Asian Pacific Journal of Tropical Biomedicine |
| spelling | doaj.art-2cf48889dbca427f8a940dec43eb276c2022-12-22T02:57:23ZengWolters Kluwer Medknow PublicationsAsian Pacific Journal of Tropical Biomedicine2221-16912016-11-0161193193610.1016/j.apjtb.2016.09.004Larvicidal activities of hydro-ethanolic extracts of three Cameroonian medicinal plants against Aedes albopictusTankeu Nzufo Francine0Biapa Nya Prosper Cabral1Pieme Constant Anatole2Moukette Moukette Bruno3Nanfack Pauline4Ngogang Yonkeu Jeanne5Laboratory of Biochemistry, Department of Biochemistry and Physiological Sciences, Faculty of Medicine and Biomedical Sciences, University of Yaoundé I, PO Box 1364, Yaoundé, CameroonLaboratory of Medicinal Plant Biochemistry, Food Science and Nutrition, Department of Biochemistry, Faculty of Science, University of Dschang, PO Box 67, Dschang, CameroonLaboratory of Biochemistry, Department of Biochemistry and Physiological Sciences, Faculty of Medicine and Biomedical Sciences, University of Yaoundé I, PO Box 1364, Yaoundé, CameroonLaboratory of Biochemistry, Department of Biochemistry and Physiological Sciences, Faculty of Medicine and Biomedical Sciences, University of Yaoundé I, PO Box 1364, Yaoundé, CameroonLaboratory of Biochemistry, Department of Biochemistry and Physiological Sciences, Faculty of Medicine and Biomedical Sciences, University of Yaoundé I, PO Box 1364, Yaoundé, CameroonLaboratory of Biochemistry, Department of Biochemistry and Physiological Sciences, Faculty of Medicine and Biomedical Sciences, University of Yaoundé I, PO Box 1364, Yaoundé, CameroonObjective: To investigate the larvicidal activity of Syzygium guineense (Myrtaceae) (S. guineense), Monodora myristica and Zanthoxylum heitzii (Rutaceae) (Z. heitzii) extracts against Aedes albopictus (Ae. albopictus). Methods: The larvicidal activity of the hydro-ethanolic extracts from these plant species was assessed at three different concentrations (50, 100 and 200 mg/L) on first-instar of Ae. albopictus larvae in comparison with untreated controls. Mortality rate was recorded daily for a period of 12 days. The values of LC50 and lethal time killing 50% of the tested individuals (LT50) were calculated using the log-probit analysis. Results: The root extract of S. guineense exhibited the best activity with 100% mortality after 8 days of treatment at 200 mg/L, followed by the fruit extract of Z. heitzii with 83.33% mortality at the same concentration. Nonetheless, larvae were most susceptible to the fruit extract of Z. heitzii both in terms of LC50 (39.89 mg/L) and LT50 (145.68 h). A statistically significant difference between the control and the group treated at 200 mg/L was noticed in all the extracts. Conclusions: The present study shows that the hydro-ethanolic extracts of S. guineense, Monodora myristica and Z. heitzii tested have significant larvicidal activity. These preliminary results are of great interest and some of these plant species can be proposed for the formulation of new bioinsecticides to control Ae. albopictus populations.http://www.sciencedirect.com/science/article/pii/S2221169115307000Aedes albopictusLarvicidesPlant extractsSyzygium guineenseZanthoxylum heitzii |
| spellingShingle | Tankeu Nzufo Francine Biapa Nya Prosper Cabral Pieme Constant Anatole Moukette Moukette Bruno Nanfack Pauline Ngogang Yonkeu Jeanne Larvicidal activities of hydro-ethanolic extracts of three Cameroonian medicinal plants against Aedes albopictus Asian Pacific Journal of Tropical Biomedicine Aedes albopictus Larvicides Plant extracts Syzygium guineense Zanthoxylum heitzii |
| title | Larvicidal activities of hydro-ethanolic extracts of three Cameroonian medicinal plants against Aedes albopictus |
| title_full | Larvicidal activities of hydro-ethanolic extracts of three Cameroonian medicinal plants against Aedes albopictus |
| title_fullStr | Larvicidal activities of hydro-ethanolic extracts of three Cameroonian medicinal plants against Aedes albopictus |
| title_full_unstemmed | Larvicidal activities of hydro-ethanolic extracts of three Cameroonian medicinal plants against Aedes albopictus |
| title_short | Larvicidal activities of hydro-ethanolic extracts of three Cameroonian medicinal plants against Aedes albopictus |
| title_sort | larvicidal activities of hydro ethanolic extracts of three cameroonian medicinal plants against aedes albopictus |
| topic | Aedes albopictus Larvicides Plant extracts Syzygium guineense Zanthoxylum heitzii |
| url | http://www.sciencedirect.com/science/article/pii/S2221169115307000 |
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