Lethal effect of a bait for Rhodnius prolixus (Hemiptera: Reduviidae), the vector of Chagas' disease, containing hexachlorocyclohexane (HCH), under laboratory conditions
Autor(a) principal: | |
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Data de Publicação: | 1992 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista do Instituto de Medicina Tropical de São Paulo |
Texto Completo: | https://www.revistas.usp.br/rimtsp/article/view/28936 |
Resumo: | The lethal effect of a bait containing an aqueous hexachlorocyclohexane (HCH) suspension at the concentration of 1g/l and maintained at room temperature was studied in the laboratory over a period of 12 weeks. The suspension was placed in a latex bag hanging inside a 1000-ml beaker tightly covered with nylon netting, and left there with no changes for 85 days. Sixteen groups of R. prolixas bugs, consisting on average of 30 specimens each, were successively exposed to the bait and observed at different intervals for one week each. The mortality rate was 100% for all groups, except for the 16th, whose mortality rate was 96.7%. As the groups succeeded one another, mortality started to occur more rapidly and was more marked at the 6- and 24-h intervals. Later tests respectively started at 6:00 a.m. and 6:00 p.m. showed that diurnal and nocturnal periodicity in the offer of food had no effect on mortality. First- and 2nd- instar nymphs and adults male were more sensitive and 5th- instar nymphs were more resistant to the active principle of the bait. |
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Lethal effect of a bait for Rhodnius prolixus (Hemiptera: Reduviidae), the vector of Chagas' disease, containing hexachlorocyclohexane (HCH), under laboratory conditions Efeito letal de uma isca para Rhodnhis prolixus (Hemiptera: Reduviidae) vetor da doença de Chagas, contendo Hexaclorociclohexano (HCH), em condições de laboratório TrypanosomiasisTriatominesRhodnius prolixusInsecticideHexachlorocyclohexaneLethality rateInsect control The lethal effect of a bait containing an aqueous hexachlorocyclohexane (HCH) suspension at the concentration of 1g/l and maintained at room temperature was studied in the laboratory over a period of 12 weeks. The suspension was placed in a latex bag hanging inside a 1000-ml beaker tightly covered with nylon netting, and left there with no changes for 85 days. Sixteen groups of R. prolixas bugs, consisting on average of 30 specimens each, were successively exposed to the bait and observed at different intervals for one week each. The mortality rate was 100% for all groups, except for the 16th, whose mortality rate was 96.7%. As the groups succeeded one another, mortality started to occur more rapidly and was more marked at the 6- and 24-h intervals. Later tests respectively started at 6:00 a.m. and 6:00 p.m. showed that diurnal and nocturnal periodicity in the offer of food had no effect on mortality. First- and 2nd- instar nymphs and adults male were more sensitive and 5th- instar nymphs were more resistant to the active principle of the bait. O efeito letal de uma isca para R. prolixus, contendo suspensão aquosa de Hexaclorociclohexano (HCH), na concentração de 1g/l e mantida em temperatura ambiente, foi estudado no laboratório, por um período de 12 semanas. A suspensão foi colocada em uma bolsa de latex, que ficou sempre com o mesmo conteúdo durante 85 dias, pendurada na parede de um becker de 1000ml. Dezesseis grupos de R. prolixus, com média de 30 exemplares cada, sucederam-se um após o outro, sendo cada grupo observado em diferentes intervalos de tempo, durante uma semana. A taxa de mortalidade foi de 100% em todos os grupos, exceto no 16º, que apresentou 96,7% de mortes nesse intervalo de tempo. À medida que os grupos se sucediam, a mortalidade passou a ocorrer mais rapidamente, acentuando-se no intervalo de 6h a 24h. Testes posteriores, um com início às 6h e outro às 18h, mostraram que a periodicidade (diurna e noturna) na oferta do alimento não interferiu na mortalidade. As ninfas de 1º e 2º instares e adultos foram mais sensíveis e as de 5º instar mais resistentes ao inseticida. Universidade de São Paulo. Instituto de Medicina Tropical de São Paulo1992-08-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://www.revistas.usp.br/rimtsp/article/view/28936Revista do Instituto de Medicina Tropical de São Paulo; Vol. 34 No. 4 (1992); 295-301 Revista do Instituto de Medicina Tropical de São Paulo; Vol. 34 Núm. 4 (1992); 295-301 Revista do Instituto de Medicina Tropical de São Paulo; v. 34 n. 4 (1992); 295-301 1678-99460036-4665reponame:Revista do Instituto de Medicina Tropical de São Pauloinstname:Instituto de Medicina Tropical (IMT)instacron:IMTenghttps://www.revistas.usp.br/rimtsp/article/view/28936/30793Copyright (c) 2018 Revista do Instituto de Medicina Tropical de São Pauloinfo:eu-repo/semantics/openAccessLima, Marli MariaRey, LuisMello, Rubens Pinto de2012-07-02T01:33:12Zoai:revistas.usp.br:article/28936Revistahttp://www.revistas.usp.br/rimtsp/indexPUBhttps://www.revistas.usp.br/rimtsp/oai||revimtsp@usp.br1678-99460036-4665opendoar:2022-12-13T16:50:42.101685Revista do Instituto de Medicina Tropical de São Paulo - Instituto de Medicina Tropical (IMT)true |
dc.title.none.fl_str_mv |
Lethal effect of a bait for Rhodnius prolixus (Hemiptera: Reduviidae), the vector of Chagas' disease, containing hexachlorocyclohexane (HCH), under laboratory conditions Efeito letal de uma isca para Rhodnhis prolixus (Hemiptera: Reduviidae) vetor da doença de Chagas, contendo Hexaclorociclohexano (HCH), em condições de laboratório |
title |
Lethal effect of a bait for Rhodnius prolixus (Hemiptera: Reduviidae), the vector of Chagas' disease, containing hexachlorocyclohexane (HCH), under laboratory conditions |
spellingShingle |
Lethal effect of a bait for Rhodnius prolixus (Hemiptera: Reduviidae), the vector of Chagas' disease, containing hexachlorocyclohexane (HCH), under laboratory conditions Lima, Marli Maria Trypanosomiasis Triatomines Rhodnius prolixus Insecticide Hexachlorocyclohexane Lethality rate Insect control |
title_short |
Lethal effect of a bait for Rhodnius prolixus (Hemiptera: Reduviidae), the vector of Chagas' disease, containing hexachlorocyclohexane (HCH), under laboratory conditions |
title_full |
Lethal effect of a bait for Rhodnius prolixus (Hemiptera: Reduviidae), the vector of Chagas' disease, containing hexachlorocyclohexane (HCH), under laboratory conditions |
title_fullStr |
Lethal effect of a bait for Rhodnius prolixus (Hemiptera: Reduviidae), the vector of Chagas' disease, containing hexachlorocyclohexane (HCH), under laboratory conditions |
title_full_unstemmed |
Lethal effect of a bait for Rhodnius prolixus (Hemiptera: Reduviidae), the vector of Chagas' disease, containing hexachlorocyclohexane (HCH), under laboratory conditions |
title_sort |
Lethal effect of a bait for Rhodnius prolixus (Hemiptera: Reduviidae), the vector of Chagas' disease, containing hexachlorocyclohexane (HCH), under laboratory conditions |
author |
Lima, Marli Maria |
author_facet |
Lima, Marli Maria Rey, Luis Mello, Rubens Pinto de |
author_role |
author |
author2 |
Rey, Luis Mello, Rubens Pinto de |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Lima, Marli Maria Rey, Luis Mello, Rubens Pinto de |
dc.subject.por.fl_str_mv |
Trypanosomiasis Triatomines Rhodnius prolixus Insecticide Hexachlorocyclohexane Lethality rate Insect control |
topic |
Trypanosomiasis Triatomines Rhodnius prolixus Insecticide Hexachlorocyclohexane Lethality rate Insect control |
description |
The lethal effect of a bait containing an aqueous hexachlorocyclohexane (HCH) suspension at the concentration of 1g/l and maintained at room temperature was studied in the laboratory over a period of 12 weeks. The suspension was placed in a latex bag hanging inside a 1000-ml beaker tightly covered with nylon netting, and left there with no changes for 85 days. Sixteen groups of R. prolixas bugs, consisting on average of 30 specimens each, were successively exposed to the bait and observed at different intervals for one week each. The mortality rate was 100% for all groups, except for the 16th, whose mortality rate was 96.7%. As the groups succeeded one another, mortality started to occur more rapidly and was more marked at the 6- and 24-h intervals. Later tests respectively started at 6:00 a.m. and 6:00 p.m. showed that diurnal and nocturnal periodicity in the offer of food had no effect on mortality. First- and 2nd- instar nymphs and adults male were more sensitive and 5th- instar nymphs were more resistant to the active principle of the bait. |
publishDate |
1992 |
dc.date.none.fl_str_mv |
1992-08-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://www.revistas.usp.br/rimtsp/article/view/28936 |
url |
https://www.revistas.usp.br/rimtsp/article/view/28936 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://www.revistas.usp.br/rimtsp/article/view/28936/30793 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2018 Revista do Instituto de Medicina Tropical de São Paulo info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2018 Revista do Instituto de Medicina Tropical de São Paulo |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade de São Paulo. Instituto de Medicina Tropical de São Paulo |
publisher.none.fl_str_mv |
Universidade de São Paulo. Instituto de Medicina Tropical de São Paulo |
dc.source.none.fl_str_mv |
Revista do Instituto de Medicina Tropical de São Paulo; Vol. 34 No. 4 (1992); 295-301 Revista do Instituto de Medicina Tropical de São Paulo; Vol. 34 Núm. 4 (1992); 295-301 Revista do Instituto de Medicina Tropical de São Paulo; v. 34 n. 4 (1992); 295-301 1678-9946 0036-4665 reponame:Revista do Instituto de Medicina Tropical de São Paulo instname:Instituto de Medicina Tropical (IMT) instacron:IMT |
instname_str |
Instituto de Medicina Tropical (IMT) |
instacron_str |
IMT |
institution |
IMT |
reponame_str |
Revista do Instituto de Medicina Tropical de São Paulo |
collection |
Revista do Instituto de Medicina Tropical de São Paulo |
repository.name.fl_str_mv |
Revista do Instituto de Medicina Tropical de São Paulo - Instituto de Medicina Tropical (IMT) |
repository.mail.fl_str_mv |
||revimtsp@usp.br |
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1798951639460085760 |