Differences of susceptibility of five triatomine species to pyrethroid insecticides - implications for Chagas disease vector control
As pyrethroids are presently the favored group of insecticides to control triatomines, we performed a series of bioassays to determine the intrinsic activity of some of the main compounds used in the control campaigns, against five of the main species of triatomines to be controlled. Comparing the i...
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| Format: | Article |
| Language: | English |
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Fundação Oswaldo Cruz (FIOCRUZ)
1999-09-01
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| Series: | Memorias do Instituto Oswaldo Cruz |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02761999000700084 |
| _version_ | 1797713477022777344 |
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| author | Alfredo Martins de Oliveira Filho |
| author_facet | Alfredo Martins de Oliveira Filho |
| author_sort | Alfredo Martins de Oliveira Filho |
| collection | DOAJ |
| description | As pyrethroids are presently the favored group of insecticides to control triatomines, we performed a series of bioassays to determine the intrinsic activity of some of the main compounds used in the control campaigns, against five of the main species of triatomines to be controlled. Comparing the insecticides it can be seen that lambdacyhalothrin is more effective than the other three pyrethroids, both considering the LD50 and 99 for all the three species with comparable results. On Triatoma infestans the LD50 of lambdacyhalothrin was followed by that of alfacypermethrin, cyfluthrin and deltamethrin. On Rhodnius prolixus the sequence, in decreasing order of activity, was lambdacyhalothrin, alfacypermethrin, deltamethrin and cyfluthrin. Some modifications can be seen when we compare the LD99, that has more to see to what happens in the field. T. brasiliensis showed to be as sensible to lambdacyhalothrin as T. infestans, the most susceptible for this product. By the other side T. sordida is the least susceptible considering the LD99 of this insecticide. |
| first_indexed | 2024-03-12T07:37:11Z |
| format | Article |
| id | doaj.art-35e0e711396945cd8c207a862a528e84 |
| institution | Directory Open Access Journal |
| issn | 0074-0276 1678-8060 |
| language | English |
| last_indexed | 2024-03-12T07:37:11Z |
| publishDate | 1999-09-01 |
| publisher | Fundação Oswaldo Cruz (FIOCRUZ) |
| record_format | Article |
| series | Memorias do Instituto Oswaldo Cruz |
| spelling | doaj.art-35e0e711396945cd8c207a862a528e842023-09-02T21:28:43ZengFundação Oswaldo Cruz (FIOCRUZ)Memorias do Instituto Oswaldo Cruz0074-02761678-80601999-09-019442542810.1590/S0074-02761999000700084Differences of susceptibility of five triatomine species to pyrethroid insecticides - implications for Chagas disease vector controlAlfredo Martins de Oliveira FilhoAs pyrethroids are presently the favored group of insecticides to control triatomines, we performed a series of bioassays to determine the intrinsic activity of some of the main compounds used in the control campaigns, against five of the main species of triatomines to be controlled. Comparing the insecticides it can be seen that lambdacyhalothrin is more effective than the other three pyrethroids, both considering the LD50 and 99 for all the three species with comparable results. On Triatoma infestans the LD50 of lambdacyhalothrin was followed by that of alfacypermethrin, cyfluthrin and deltamethrin. On Rhodnius prolixus the sequence, in decreasing order of activity, was lambdacyhalothrin, alfacypermethrin, deltamethrin and cyfluthrin. Some modifications can be seen when we compare the LD99, that has more to see to what happens in the field. T. brasiliensis showed to be as sensible to lambdacyhalothrin as T. infestans, the most susceptible for this product. By the other side T. sordida is the least susceptible considering the LD99 of this insecticide.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02761999000700084triatomineinsecticidesChagas diseaseTriatomaPanstrongylusRhodnius |
| spellingShingle | Alfredo Martins de Oliveira Filho Differences of susceptibility of five triatomine species to pyrethroid insecticides - implications for Chagas disease vector control Memorias do Instituto Oswaldo Cruz triatomine insecticides Chagas disease Triatoma Panstrongylus Rhodnius |
| title | Differences of susceptibility of five triatomine species to pyrethroid insecticides - implications for Chagas disease vector control |
| title_full | Differences of susceptibility of five triatomine species to pyrethroid insecticides - implications for Chagas disease vector control |
| title_fullStr | Differences of susceptibility of five triatomine species to pyrethroid insecticides - implications for Chagas disease vector control |
| title_full_unstemmed | Differences of susceptibility of five triatomine species to pyrethroid insecticides - implications for Chagas disease vector control |
| title_short | Differences of susceptibility of five triatomine species to pyrethroid insecticides - implications for Chagas disease vector control |
| title_sort | differences of susceptibility of five triatomine species to pyrethroid insecticides implications for chagas disease vector control |
| topic | triatomine insecticides Chagas disease Triatoma Panstrongylus Rhodnius |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02761999000700084 |
| work_keys_str_mv | AT alfredomartinsdeoliveirafilho differencesofsusceptibilityoffivetriatominespeciestopyrethroidinsecticidesimplicationsforchagasdiseasevectorcontrol |