Data/hora: 09/06/2024 05:58:55

Biblioteca(s): | Embrapa Semiárido; Embrapa Unidades Centrais.
Data corrente: | 23/10/2017
Data da última atualização: | 23/10/2017
Autoria: | FERNADES, M. H. de A.; MENEZES, K. O. de; SOUZA, A. M. de; ALMEIDA, J. R. G. da S.; OLIVEIRA, J. E. de M.; GERVÁSIO, R. de C. R. G.
Afiliação: | Maria Herlândia de Araújo Fernandes, Universidade Federal do Vale do São Francisco - Univasf; Karen Oliveira de Menezes, Universidade Federal do Piauí - UFPI; Adriana Maria de Souza, Universidade Federal do Piauí - UFPI; Jackson Roberto Guedes da Silva Almeida, Universidade Federal do Vale do São Francisco - Univasf; JOSE EUDES DE MORAIS OLIVEIRA, CPATSA; Rita de Cássia Rodrigues Gonçalves Gervásio, Universidade Federal do Vale do São Francisco - Univasf.
Título: | Bioactivity of the organic extracts of Annona vepretorum on Tetranychus urticae (Acari: Tetranychidae).
Ano de publicação: | 2017
Fonte/Imprenta: | Pesquisa Agropecuária Brasileira, Brasília, DF, v. 52, n. 9, p. 707-714, ago. 2017.
Idioma: | Inglês
Notas: | Título em português: Bioatividade de extratos orgânicos de Annona vepretorum sobre Tetranychus urticae (Acari: Tetranychidae).
Conteúdo: | The objective of this work was to evaluate the lethal and sublethal toxicity of hexane and methanolic extracts from the leaves of Annona vepretorum (Annonaceae) on Tetranychus urticae (Acari: Tetranychidae). The methanolic extract toxicity was evaluated by Potter tower application (topical + residual effect) and by immersion of Canavalia ensiformis leaf disks in the extract solution (residual contact effect). The hexane extract toxicity was evaluated exclusively through residual contact effect. Sublethal effects of the methanolic extract were evaluated through LC50 on the females. Mite preference for feeding and oviposition was evaluated by multiple choice tests, between the control and the extract concentrations, using the hexane and methanolic extracts. Estimated LC50 for the methanolic extract was 10.96 mg mL-1 for the topic + residual effect and 22.07 mg mL-1 for the residual effect. Estimated LC50 for the h exane extract was 50.61 mg mL-1. The methanolic extract at the previously estimated CL50 interfered in the fecundity and longevity of females, differing significantly from the control treatment. In the multiple choice tests, for both extracts, mites showed a significant preference for the control, both for feeding and oviposition. Annona vepretorum has acaricide effect and constitutes a botanical source with great potential for controlling T. urticae.
Palavras-Chave: | Acaricida botânico; Acetogenina; Botanical acaricide; Botanical extracts; Extrato botânico; Manejo integrado de praga; Two-spotted spider mite.
Thesagro: | Ácaro rajado; Resistência a pesticida.
Thesaurus Nal: | Acetogenins; Integrated pest management; Pesticide resistance.

Categoria do assunto:

--
O Insetos e Entomologia

URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/165373/1/Bioactivity-of-the-organic-extracts.pdf
Registro original: | Embrapa Unidades Centrais (AI-SEDE)

Exemplares:

AI-SEDE - (61801-1) - UPE - AP - PP - 630.72081 - P474 -  - DIS
CPATSA - (57075-1) - UPC - AP - DD -  -  -  - DIS