Data/hora: 01/06/2024 01:24:18

Biblioteca(s): | Embrapa Agroindústria Tropical; Embrapa Gado de Leite.
Data corrente: | 30/11/2022
Data da última atualização: | 05/12/2022
Autoria: | PEREIRA, M. C.; ANHOLETO, L. A.; KASA, G. G.; CASTRO, K. N. de C.; CANUTO, K. M.; SOUZA, A. S. de Q.; CAMARGO-MATHIAS, M. I.
Afiliação: | MELISSA CAROLINA PEREIRA, Universidade Estadual Paulista Júlio de Mesquita Filho; LUIS ADRIANO ANHOLETO; GIOVANNA GENNARI KASA, Universidade Estadual Paulista Júlio de Mesquita Filho; KARINA NEOOB DE CARVALHO CASTRO, CNPGL; KIRLEY MARQUES CANUTO, CNPAT; ANA SHEILA DE QUEIROZ SOUZA; MARIA IZABEL CAMARGO-MATHIAS, Universidade Estadual Paulista Júlio de Mesquita Filho.
Título: | Efficacy of essential oils of Egletes viscosa and Lippia schaueriana on the reproductive biology of Rhipicephalus sanguineus sensu lato engorged females.
Ano de publicação: | 2023
Fonte/Imprenta: | Experimental Parasitology, v. 244, 108423, 2023.
DOI: | https://doi.org/10.1016/j.exppara.2022.108423
Idioma: | Inglês
Notas: | Publicado online em 17 nov. 2022.
Conteúdo: | The study analyzed the chemical composition and the acaricide effect of Egletes viscosa Less (macela-da-terra) and Lippia schaueriana Mart. (lipia-da-serra) essential oils (EOs) on Rhipicephalus sanguineus s. l. (Acari: Ixodidae) engorged females. The chemical analysis (GC-MS and GC-FID) identified 27 components in E. viscosa EO and 18 in L. schaueriana EO, which comprise more than 98% of its constituents. The effects of the oils on the reproductive biology of R. sanguineus ticks were assessed by adult immersion test. Both EOs significantly reduced (p < 0.05) the egg production index when the females were exposed to 25 and 50 mg/mL, also affecting the egg viability. During the laying process, the eggs produced by the females exposed to the EO showed several morphological alterations such as dehydrated, darkened, and disaggregated, and these alterations were more severe as the concentrations increased. The mortality percentages were 58.9%, 70.8% and 92.7% when the ticks were exposed to 12.5, 25 and 50 mg/mL of E. viscosa oil, respectively. In the same concentrations, the efficacy of L. schaueriana was 39.3%, 53.4%, and 84.6%. Therefore, it can be concluded that the essential oils of E. viscosa and L. schaueriana have acaricidal effect in females of R. sanguineus s.l ticks.
Thesagro: | Acaricida; Bovino; Carrapato.
Thesaurus Nal: | Acaricides; Parasites; Ticks.
Categoria do assunto: | L Ciência Animal e Produtos de Origem Animal
Registro original: | Embrapa Gado de Leite (CNPGL)

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