Toxic Activity of Pyrethroids in <i>Lutzomyia longipalpis</i> (Diptera: Psychodidae) from Magdalena River Basin, Colombia
The study aimed to determine the toxicity of lambda-cyhalothrin, alpha-cypermethrin, and deltamethrin in L. longipalpis, through concentration-mortality bioassays. The test here was performed following WHO guidelines, but instead of using exposure WHO recipients and impregnated papers, 250 ml Wheato...
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| Format: | Article |
| Language: | English |
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Universidad Nacional de Colombia
2019-05-01
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| Series: | Acta Biológica Colombiana |
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| Online Access: | https://revistas.unal.edu.co/index.php/actabiol/article/view/74570 |
| _version_ | 1818789353083633664 |
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| author | Erika Santamaria Catalina Marceló-Díaz |
| author_facet | Erika Santamaria Catalina Marceló-Díaz |
| author_sort | Erika Santamaria |
| collection | DOAJ |
| description | The study aimed to determine the toxicity of lambda-cyhalothrin, alpha-cypermethrin, and deltamethrin in L. longipalpis, through concentration-mortality bioassays. The test here was performed following WHO guidelines, but instead of using exposure WHO recipients and impregnated papers, 250 ml Wheaton glass bottles treated with 1 ml of insecticide solution were used. Batches of ten females of L. longipalpis were exposed to five concentrations of each pyrethroid that caused between 5 and 100 % mortality in this species. After 1 h of exposure, the females were transferred to observation recipients, and mortality was recorded 24 h later. The lethal concentrations (μg/ml) that killed 50 and 95 % (LC50 and LC95) of the exposed L. longipalpis females were 0.05 and 0.86 for lambda-cyhalothrin, 0.24 and 3.62 for alpha-cypermethrin and 0.53 and 4.72 for deltamethrin. Based on the LC50 obtained, lambda-cyhalothrin is the most toxic pyrethroid for L. longipalpis, followed by alpha-cypermethrin and deltamethrin. It is expected that these data may be useful in studies on the effects of sub-lethal concentrations of the three pyrethroids on the behavior of L. longipalpis and studies on the vector susceptibility to these pyrethroids. |
| first_indexed | 2024-12-18T14:38:12Z |
| format | Article |
| id | doaj.art-69f5fc20bf574d829393f75341466849 |
| institution | Directory Open Access Journal |
| issn | 0120-548X 1900-1649 |
| language | English |
| last_indexed | 2024-12-18T14:38:12Z |
| publishDate | 2019-05-01 |
| publisher | Universidad Nacional de Colombia |
| record_format | Article |
| series | Acta Biológica Colombiana |
| spelling | doaj.art-69f5fc20bf574d829393f753414668492022-12-21T21:04:28ZengUniversidad Nacional de ColombiaActa Biológica Colombiana0120-548X1900-16492019-05-0124210.15446/abc.v24n2.7457050713Toxic Activity of Pyrethroids in <i>Lutzomyia longipalpis</i> (Diptera: Psychodidae) from Magdalena River Basin, ColombiaErika Santamaria0Catalina Marceló-Díaz1Instituto Nacional de Salud - Grupo de EntomologíaInstituto Nacional de Salud - Grupo de EntomologíaThe study aimed to determine the toxicity of lambda-cyhalothrin, alpha-cypermethrin, and deltamethrin in L. longipalpis, through concentration-mortality bioassays. The test here was performed following WHO guidelines, but instead of using exposure WHO recipients and impregnated papers, 250 ml Wheaton glass bottles treated with 1 ml of insecticide solution were used. Batches of ten females of L. longipalpis were exposed to five concentrations of each pyrethroid that caused between 5 and 100 % mortality in this species. After 1 h of exposure, the females were transferred to observation recipients, and mortality was recorded 24 h later. The lethal concentrations (μg/ml) that killed 50 and 95 % (LC50 and LC95) of the exposed L. longipalpis females were 0.05 and 0.86 for lambda-cyhalothrin, 0.24 and 3.62 for alpha-cypermethrin and 0.53 and 4.72 for deltamethrin. Based on the LC50 obtained, lambda-cyhalothrin is the most toxic pyrethroid for L. longipalpis, followed by alpha-cypermethrin and deltamethrin. It is expected that these data may be useful in studies on the effects of sub-lethal concentrations of the three pyrethroids on the behavior of L. longipalpis and studies on the vector susceptibility to these pyrethroids.https://revistas.unal.edu.co/index.php/actabiol/article/view/74570Biological assayColombiainsecticidesleishmaniasisPsychodidae |
| spellingShingle | Erika Santamaria Catalina Marceló-Díaz Toxic Activity of Pyrethroids in <i>Lutzomyia longipalpis</i> (Diptera: Psychodidae) from Magdalena River Basin, Colombia Acta Biológica Colombiana Biological assay Colombia insecticides leishmaniasis Psychodidae |
| title | Toxic Activity of Pyrethroids in <i>Lutzomyia longipalpis</i> (Diptera: Psychodidae) from Magdalena River Basin, Colombia |
| title_full | Toxic Activity of Pyrethroids in <i>Lutzomyia longipalpis</i> (Diptera: Psychodidae) from Magdalena River Basin, Colombia |
| title_fullStr | Toxic Activity of Pyrethroids in <i>Lutzomyia longipalpis</i> (Diptera: Psychodidae) from Magdalena River Basin, Colombia |
| title_full_unstemmed | Toxic Activity of Pyrethroids in <i>Lutzomyia longipalpis</i> (Diptera: Psychodidae) from Magdalena River Basin, Colombia |
| title_short | Toxic Activity of Pyrethroids in <i>Lutzomyia longipalpis</i> (Diptera: Psychodidae) from Magdalena River Basin, Colombia |
| title_sort | toxic activity of pyrethroids in i lutzomyia longipalpis i diptera psychodidae from magdalena river basin colombia |
| topic | Biological assay Colombia insecticides leishmaniasis Psychodidae |
| url | https://revistas.unal.edu.co/index.php/actabiol/article/view/74570 |
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