Insecticidal effect of ethnobotanical plant extracts against Anopheles arabiensis under laboratory conditions
Abstract Background The emergence and spread of resistant strains of malaria vectors to chemical insecticides are becoming major problems for malaria vector management. Natural plant products have a vital role to play in the current challenge of malaria control. The current study was conducted to ev...
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ftdoajarticles:oai:doaj.org/article:c91daee804574e139c0b802f61ff6a80 2023-05-15T15:14:23+02:00 Insecticidal effect of ethnobotanical plant extracts against Anopheles arabiensis under laboratory conditions Desta Ejeta Ansha Asme Animut Asefa 2021-12-01T00:00:00Z https://doi.org/10.1186/s12936-021-04004-6 https://doaj.org/article/c91daee804574e139c0b802f61ff6a80 EN eng BMC https://doi.org/10.1186/s12936-021-04004-6 https://doaj.org/toc/1475-2875 doi:10.1186/s12936-021-04004-6 1475-2875 https://doaj.org/article/c91daee804574e139c0b802f61ff6a80 Malaria Journal, Vol 20, Iss 1, Pp 1-8 (2021) Anopheles arabiensis Botanical insecticide Dangur Ethnobotanicals Malaria Arctic medicine. Tropical medicine RC955-962 Infectious and parasitic diseases RC109-216 article 2021 ftdoajarticles https://doi.org/10.1186/s12936-021-04004-6 2022-12-31T09:46:35Z Abstract Background The emergence and spread of resistant strains of malaria vectors to chemical insecticides are becoming major problems for malaria vector management. Natural plant products have a vital role to play in the current challenge of malaria control. The current study was conducted to evaluate insecticidal effect of ethnobotanical plant extracts against the primary malaria vector, Anopheles arabiensis in northwestern Ethiopia. Methods Primarily, ethnobotanical plants used for Anopheles mosquito control were surveyed in Dangur district, northwestern Ethiopia. Insecticide-susceptible strains of Anopheles arabiensis mosquito were reared in the insectary of the Tropical and Infectious Diseases Research Centre, Assosa University. After surveying plants used for mosquito control in local people, four frequently used plants were identified for extraction. The larvicidal and adulticidal potential of frequently used plant extracts against susceptible strains of the laboratory colony were evaluated. Results A total of 15 plants were identified as ethnobotanical plants that help local people with mosquito control. Azadirachta indica, Ocimum lamiifolium, Ocimum americanum, Moringa olifeira leaf, and Moringa olifeira seed species of local plants were found to be frequently used to kill and/or repel mosquitoes in the study district. All the plant extracts were found to have potential larvicidal activity against fourth instar larvae of An. arabiensis and only ethanol and methanol extract of Azadirachta indica and Ocimum lamiifolium were found to have potential adulticidal effect against adult of An. arabiensis. The highest larvicidal activity was observed in ethanol extract of Azadirachta indica with 95% larval mortality and lowest Lethal Concentration 50 (LC 50) of 40.73parts per million (ppm) and LC90 of 186.66 ppm. The highest adulticidal activity was observed in methanol extract of Azadirachta indica with 75% adult mortality at 300 ppm and lowest LC50 of 106.65 ppm and LC90 of 1,293 ppm. The lowest larvicidal ... Article in Journal/Newspaper Arctic Directory of Open Access Journals: DOAJ Articles Arctic Malaria Journal 20 1 |
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English |
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Anopheles arabiensis Botanical insecticide Dangur Ethnobotanicals Malaria Arctic medicine. Tropical medicine RC955-962 Infectious and parasitic diseases RC109-216 |
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Anopheles arabiensis Botanical insecticide Dangur Ethnobotanicals Malaria Arctic medicine. Tropical medicine RC955-962 Infectious and parasitic diseases RC109-216 Desta Ejeta Ansha Asme Animut Asefa Insecticidal effect of ethnobotanical plant extracts against Anopheles arabiensis under laboratory conditions |
topic_facet |
Anopheles arabiensis Botanical insecticide Dangur Ethnobotanicals Malaria Arctic medicine. Tropical medicine RC955-962 Infectious and parasitic diseases RC109-216 |
description |
Abstract Background The emergence and spread of resistant strains of malaria vectors to chemical insecticides are becoming major problems for malaria vector management. Natural plant products have a vital role to play in the current challenge of malaria control. The current study was conducted to evaluate insecticidal effect of ethnobotanical plant extracts against the primary malaria vector, Anopheles arabiensis in northwestern Ethiopia. Methods Primarily, ethnobotanical plants used for Anopheles mosquito control were surveyed in Dangur district, northwestern Ethiopia. Insecticide-susceptible strains of Anopheles arabiensis mosquito were reared in the insectary of the Tropical and Infectious Diseases Research Centre, Assosa University. After surveying plants used for mosquito control in local people, four frequently used plants were identified for extraction. The larvicidal and adulticidal potential of frequently used plant extracts against susceptible strains of the laboratory colony were evaluated. Results A total of 15 plants were identified as ethnobotanical plants that help local people with mosquito control. Azadirachta indica, Ocimum lamiifolium, Ocimum americanum, Moringa olifeira leaf, and Moringa olifeira seed species of local plants were found to be frequently used to kill and/or repel mosquitoes in the study district. All the plant extracts were found to have potential larvicidal activity against fourth instar larvae of An. arabiensis and only ethanol and methanol extract of Azadirachta indica and Ocimum lamiifolium were found to have potential adulticidal effect against adult of An. arabiensis. The highest larvicidal activity was observed in ethanol extract of Azadirachta indica with 95% larval mortality and lowest Lethal Concentration 50 (LC 50) of 40.73parts per million (ppm) and LC90 of 186.66 ppm. The highest adulticidal activity was observed in methanol extract of Azadirachta indica with 75% adult mortality at 300 ppm and lowest LC50 of 106.65 ppm and LC90 of 1,293 ppm. The lowest larvicidal ... |
format |
Article in Journal/Newspaper |
author |
Desta Ejeta Ansha Asme Animut Asefa |
author_facet |
Desta Ejeta Ansha Asme Animut Asefa |
author_sort |
Desta Ejeta |
title |
Insecticidal effect of ethnobotanical plant extracts against Anopheles arabiensis under laboratory conditions |
title_short |
Insecticidal effect of ethnobotanical plant extracts against Anopheles arabiensis under laboratory conditions |
title_full |
Insecticidal effect of ethnobotanical plant extracts against Anopheles arabiensis under laboratory conditions |
title_fullStr |
Insecticidal effect of ethnobotanical plant extracts against Anopheles arabiensis under laboratory conditions |
title_full_unstemmed |
Insecticidal effect of ethnobotanical plant extracts against Anopheles arabiensis under laboratory conditions |
title_sort |
insecticidal effect of ethnobotanical plant extracts against anopheles arabiensis under laboratory conditions |
publisher |
BMC |
publishDate |
2021 |
url |
https://doi.org/10.1186/s12936-021-04004-6 https://doaj.org/article/c91daee804574e139c0b802f61ff6a80 |
geographic |
Arctic |
geographic_facet |
Arctic |
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Arctic |
genre_facet |
Arctic |
op_source |
Malaria Journal, Vol 20, Iss 1, Pp 1-8 (2021) |
op_relation |
https://doi.org/10.1186/s12936-021-04004-6 https://doaj.org/toc/1475-2875 doi:10.1186/s12936-021-04004-6 1475-2875 https://doaj.org/article/c91daee804574e139c0b802f61ff6a80 |
op_doi |
https://doi.org/10.1186/s12936-021-04004-6 |
container_title |
Malaria Journal |
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20 |
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1 |
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1766344836702535680 |