Effect of the chitin synthesis inhibitor triflumuron on the development, viability and reproduction of Aedes aegypti
The control of Aedes aegypti is impaired due to the development of resistance to chemical insecticides. Insect Growth Regulators (IGR) exhibit distinct mechanisms of action and are considered potential vector control alternatives. Studies regarding the effects of sublethal IGR doses on the viability...
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| Format: | Article |
| Language: | English |
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Fundação Oswaldo Cruz (FIOCRUZ)
2009-02-01
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| Series: | Memorias do Instituto Oswaldo Cruz |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762009000100007 |
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| author | Thiago Affonso Belinato Ademir Jesus Martins José Bento Pereira Lima Tamara Nunes de Lima-Camara Alexandre Afrânio Peixoto Denise Valle |
| author_facet | Thiago Affonso Belinato Ademir Jesus Martins José Bento Pereira Lima Tamara Nunes de Lima-Camara Alexandre Afrânio Peixoto Denise Valle |
| author_sort | Thiago Affonso Belinato |
| collection | DOAJ |
| description | The control of Aedes aegypti is impaired due to the development of resistance to chemical insecticides. Insect Growth Regulators (IGR) exhibit distinct mechanisms of action and are considered potential vector control alternatives. Studies regarding the effects of sublethal IGR doses on the viability of resulting adults will contribute to eval-uating their impact in the field. We analyzed several aspects of Ae. aegypti adults surviving exposure to a partially lethal dose of triflumuron, a chitin synthesis inhibitor. A highly significant difference in the proportion of males and females was noted in the triflumuron-exposed group (65.0% males) compared to the controls (50.2% males). Triflumuron affected adult longevity, particularly for females; after 16 days, only 29.2% of males and 13.8% of females were alive, in contrast with 94% survival of the control mosquitoes. The locomotor activity was reduced and the blood-feeding ability of the treated females was also affected (90.4% and 48.4% of the control and triflumuron-exposed females, respectively, successfully ingested blood). Triflumuron-surviving females ingested roughly 30% less blood and laid 25% fewer eggs than the control females. The treated males and females exhibited a diminished ability to copulate, resulting in less viable eggs. |
| first_indexed | 2024-03-12T08:50:55Z |
| format | Article |
| id | doaj.art-6524280d2cf84d2b9368b15179809388 |
| institution | Directory Open Access Journal |
| issn | 0074-0276 1678-8060 |
| language | English |
| last_indexed | 2024-03-12T08:50:55Z |
| publishDate | 2009-02-01 |
| publisher | Fundação Oswaldo Cruz (FIOCRUZ) |
| record_format | Article |
| series | Memorias do Instituto Oswaldo Cruz |
| spelling | doaj.art-6524280d2cf84d2b9368b151798093882023-09-02T16:17:55ZengFundação Oswaldo Cruz (FIOCRUZ)Memorias do Instituto Oswaldo Cruz0074-02761678-80602009-02-011041434710.1590/S0074-02762009000100007Effect of the chitin synthesis inhibitor triflumuron on the development, viability and reproduction of Aedes aegyptiThiago Affonso BelinatoAdemir Jesus MartinsJosé Bento Pereira LimaTamara Nunes de Lima-CamaraAlexandre Afrânio PeixotoDenise ValleThe control of Aedes aegypti is impaired due to the development of resistance to chemical insecticides. Insect Growth Regulators (IGR) exhibit distinct mechanisms of action and are considered potential vector control alternatives. Studies regarding the effects of sublethal IGR doses on the viability of resulting adults will contribute to eval-uating their impact in the field. We analyzed several aspects of Ae. aegypti adults surviving exposure to a partially lethal dose of triflumuron, a chitin synthesis inhibitor. A highly significant difference in the proportion of males and females was noted in the triflumuron-exposed group (65.0% males) compared to the controls (50.2% males). Triflumuron affected adult longevity, particularly for females; after 16 days, only 29.2% of males and 13.8% of females were alive, in contrast with 94% survival of the control mosquitoes. The locomotor activity was reduced and the blood-feeding ability of the treated females was also affected (90.4% and 48.4% of the control and triflumuron-exposed females, respectively, successfully ingested blood). Triflumuron-surviving females ingested roughly 30% less blood and laid 25% fewer eggs than the control females. The treated males and females exhibited a diminished ability to copulate, resulting in less viable eggs.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762009000100007triflumuronAedes aegyptisublethal effectschitin synthesis inhibitor |
| spellingShingle | Thiago Affonso Belinato Ademir Jesus Martins José Bento Pereira Lima Tamara Nunes de Lima-Camara Alexandre Afrânio Peixoto Denise Valle Effect of the chitin synthesis inhibitor triflumuron on the development, viability and reproduction of Aedes aegypti Memorias do Instituto Oswaldo Cruz triflumuron Aedes aegypti sublethal effects chitin synthesis inhibitor |
| title | Effect of the chitin synthesis inhibitor triflumuron on the development, viability and reproduction of Aedes aegypti |
| title_full | Effect of the chitin synthesis inhibitor triflumuron on the development, viability and reproduction of Aedes aegypti |
| title_fullStr | Effect of the chitin synthesis inhibitor triflumuron on the development, viability and reproduction of Aedes aegypti |
| title_full_unstemmed | Effect of the chitin synthesis inhibitor triflumuron on the development, viability and reproduction of Aedes aegypti |
| title_short | Effect of the chitin synthesis inhibitor triflumuron on the development, viability and reproduction of Aedes aegypti |
| title_sort | effect of the chitin synthesis inhibitor triflumuron on the development viability and reproduction of aedes aegypti |
| topic | triflumuron Aedes aegypti sublethal effects chitin synthesis inhibitor |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762009000100007 |
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