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Registro Completo |
Biblioteca(s): |
Embrapa Algodão. |
Data corrente: |
24/09/2010 |
Data da última atualização: |
24/09/2010 |
Tipo da produção científica: |
Artigo de Divulgação na Mídia |
Autoria: |
FERREIRA, A. C. de B. |
Afiliação: |
ALEXANDRE CUNHA DE B FERREIRA, CNPA. |
Título: |
Espaçamento adensado do algodão é nova tecnologia. |
Ano de publicação: |
2010 |
Fonte/Imprenta: |
Revista Campo & Negócios, v. 8, n. 90, p. 35-37, ago., 2010. |
ISSN: |
2176-1183 |
Idioma: |
Português |
Palavras-Chave: |
Algodão adensado; Espaçamento adensado; Espaçamento do algodão. |
Categoria do assunto: |
-- |
Marc: |
LEADER 00468naa a2200157 a 4500 001 1862871 005 2010-09-24 008 2010 bl --- 0-- u #d 022 $a2176-1183 100 1 $aFERREIRA, A. C. de B. 245 $aEspaçamento adensado do algodão é nova tecnologia. 260 $c2010 653 $aAlgodão adensado 653 $aEspaçamento adensado 653 $aEspaçamento do algodão 773 $tRevista Campo & Negócios$gv. 8, n. 90, p. 35-37, ago., 2010.
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Embrapa Algodão (CNPA) |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Gado de Leite. Para informações adicionais entre em contato com cnpgl.biblioteca@embrapa.br. |
Registro Completo
Biblioteca(s): |
Embrapa Gado de Leite. |
Data corrente: |
10/08/2021 |
Data da última atualização: |
10/08/2021 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 2 |
Autoria: |
MARCHESINI, P.; NOVATO, T. P.; CARDOSO, S. J.; PRATA, M. C. de A.; NASCIMENTO, R. M. do; KLAFKE, G.; COSTA-JÚNIOR, L. M.; MATURANO, R.; LOPES, W. D. Z.; BITTENCOURT, V. R. E. P.; MONTEIRO, C. |
Afiliação: |
PAULA MARCHESINI, Universidade Federal Rural do Rio de Janeiro; TATIANE PINHEIRO NOVATO, Universidade Federal Rural do Rio de Janeiro; SIMONE JAQUELINE CARDOSO, Universidade Federal de Juiz de Fora; MARCIA CRISTINA DE AZEVEDO PRATA, CNPGL; RAFAEL MOREIRA DO NASCIMENTO, Universidade Federal de Juiz de Fora; GUILHERME KLAFKE, Centro de Pesquisa em Saúde Animal, Eldorado do Sul, RS; LÍVIO M. COSTA-JÚNIOR, Universidade Federal do Maranhão; RALPH MATURANO, Universidade Federal de Juiz de Fora; WELBER DANIEL ZANETI LOPES, Universidade Federal de Goiás; VÂNIA RITA ELIAS PINHEIRO BITTENCOURT, Universidade Federal Rural do Rio de Janeiro; CAIO MONTEIRO, Universidade Federal de Goiás. |
Título: |
Acaricidal activity of (E)-cinnamaldehyde and alpha-bisabolol on populations of Rhipicephalus microplus (Acari: Ixodidae) with different resistance profiles. |
Ano de publicação: |
2020 |
Fonte/Imprenta: |
Veterinary Parasitology, v. 286, 109226, 2020. |
DOI: |
https://doi.org/10.1016/j.vetpar.2020.109226 |
Idioma: |
Inglês |
Conteúdo: |
This study aimed to investigate the acaricidal activity of (E)-cinnamaldehyde and α-bisabolol on populations of Rhipicephalus microplus with different resistance profiles. The adult immersion test (AIT) was used to characterize the susceptibility of tick populations (50 field populations) to synthetic acaricides: deltamethrin, amitraz, and chlorfenvinphos. The larval packet test (LPT) was used to determine the LC50 values for (E)-cinnamaldehyde (populations 1?25) and α-bisabolol (populations 26?50) at the concentrations of 0.31, 0.62, 1.25, 2.0, 2.5, 5.0 and 10.0 mg/mL. The susceptible strain Porto Alegre (POA) was used as a reference for calculating the resistance ratio (RR). In the AIT, deltamethrin did not show efficacy >95 % for any of the populations, whereas amitraz and chlorfenvinphos have presented efficacy >95 % for three (6 %) and 15 (30 %) populations, respectively. In the LPT, the LC50 values of (E)-cinnamaldehyde and α-bisabolol varied from 0.23 to 2.36 mg/mL and 1.57?3.01 mg/mL, respectively. The RR50 for (E)-cinnamaldehyde showed 20 (80 %) populations with values <1.0 and no population with values>1.5. As for α-bisabolol, only two (8%) populations have presented RR50 <1.0, whereas three (12 %) populations showed incipient resistance to this sesquiterpene (RR50 between 1.5 and 2.0). The results indicate that all studied tick populations showed low susceptibility to at least one of the commercial acaricides tested. In addition, comparison between the LC50 values of (E)-cinnamaldehyde and α-bisabolol for the field populations and the susceptible strain POA suggests that there is no cross-resistance of (E)-cinnamaldehyde and α-bisabolol for the tick populations evaluated, and that the differences in the LC50 values are due to population variations. MenosThis study aimed to investigate the acaricidal activity of (E)-cinnamaldehyde and α-bisabolol on populations of Rhipicephalus microplus with different resistance profiles. The adult immersion test (AIT) was used to characterize the susceptibility of tick populations (50 field populations) to synthetic acaricides: deltamethrin, amitraz, and chlorfenvinphos. The larval packet test (LPT) was used to determine the LC50 values for (E)-cinnamaldehyde (populations 1?25) and α-bisabolol (populations 26?50) at the concentrations of 0.31, 0.62, 1.25, 2.0, 2.5, 5.0 and 10.0 mg/mL. The susceptible strain Porto Alegre (POA) was used as a reference for calculating the resistance ratio (RR). In the AIT, deltamethrin did not show efficacy >95 % for any of the populations, whereas amitraz and chlorfenvinphos have presented efficacy >95 % for three (6 %) and 15 (30 %) populations, respectively. In the LPT, the LC50 values of (E)-cinnamaldehyde and α-bisabolol varied from 0.23 to 2.36 mg/mL and 1.57?3.01 mg/mL, respectively. The RR50 for (E)-cinnamaldehyde showed 20 (80 %) populations with values <1.0 and no population with values>1.5. As for α-bisabolol, only two (8%) populations have presented RR50 <1.0, whereas three (12 %) populations showed incipient resistance to this sesquiterpene (RR50 between 1.5 and 2.0). The results indicate that all studied tick populations showed low susceptibility to at least one of the commercial acaricides tested. In addition, comparison bet... Mostrar Tudo |
Palavras-Chave: |
Fenilpropanóide; Resistência cruzada; Sesquiterpeno. |
Thesagro: |
Acaricida; Bovino; Carrapato. |
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
Marc: |
LEADER 02849naa a2200325 a 4500 001 2133390 005 2021-08-10 008 2020 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.1016/j.vetpar.2020.109226$2DOI 100 1 $aMARCHESINI, P. 245 $aAcaricidal activity of (E)-cinnamaldehyde and alpha-bisabolol on populations of Rhipicephalus microplus (Acari$bIxodidae) with different resistance profiles.$h[electronic resource] 260 $c2020 520 $aThis study aimed to investigate the acaricidal activity of (E)-cinnamaldehyde and α-bisabolol on populations of Rhipicephalus microplus with different resistance profiles. The adult immersion test (AIT) was used to characterize the susceptibility of tick populations (50 field populations) to synthetic acaricides: deltamethrin, amitraz, and chlorfenvinphos. The larval packet test (LPT) was used to determine the LC50 values for (E)-cinnamaldehyde (populations 1?25) and α-bisabolol (populations 26?50) at the concentrations of 0.31, 0.62, 1.25, 2.0, 2.5, 5.0 and 10.0 mg/mL. The susceptible strain Porto Alegre (POA) was used as a reference for calculating the resistance ratio (RR). In the AIT, deltamethrin did not show efficacy >95 % for any of the populations, whereas amitraz and chlorfenvinphos have presented efficacy >95 % for three (6 %) and 15 (30 %) populations, respectively. In the LPT, the LC50 values of (E)-cinnamaldehyde and α-bisabolol varied from 0.23 to 2.36 mg/mL and 1.57?3.01 mg/mL, respectively. The RR50 for (E)-cinnamaldehyde showed 20 (80 %) populations with values <1.0 and no population with values>1.5. As for α-bisabolol, only two (8%) populations have presented RR50 <1.0, whereas three (12 %) populations showed incipient resistance to this sesquiterpene (RR50 between 1.5 and 2.0). The results indicate that all studied tick populations showed low susceptibility to at least one of the commercial acaricides tested. In addition, comparison between the LC50 values of (E)-cinnamaldehyde and α-bisabolol for the field populations and the susceptible strain POA suggests that there is no cross-resistance of (E)-cinnamaldehyde and α-bisabolol for the tick populations evaluated, and that the differences in the LC50 values are due to population variations. 650 $aAcaricida 650 $aBovino 650 $aCarrapato 653 $aFenilpropanóide 653 $aResistência cruzada 653 $aSesquiterpeno 700 1 $aNOVATO, T. P. 700 1 $aCARDOSO, S. J. 700 1 $aPRATA, M. C. de A. 700 1 $aNASCIMENTO, R. M. do 700 1 $aKLAFKE, G. 700 1 $aCOSTA-JÚNIOR, L. M. 700 1 $aMATURANO, R. 700 1 $aLOPES, W. D. Z. 700 1 $aBITTENCOURT, V. R. E. P. 700 1 $aMONTEIRO, C. 773 $tVeterinary Parasitology$gv. 286, 109226, 2020.
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