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| Registros recuperados: 37 | |
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| FREITAS, G. S. de; SENA FILHO, J. G. de; SARAIVA, W. V. A.; VIEIRA, I. G.; OLIVEIRA, E. E.; TEODORO, A. V.. |
| The coconut mite,Aceria guerreronisKeifer (Acari: Eriophyidae), is a severe andubiquitous pest of coconut plantations worldwide. Vegetable oils contain fatty acids that areactive against a variety of agricultural pests; however, little is known about their efficiency incontrollingA. guerreronisas well as their adverse effects on its natural enemies. Here, weassessed the chemical profile of palm oil as well as its toxicity and repellence to bothA.guerreronisandTyphlodromus ornatusDenmark and Muma (Acari: Phytoseiidae), a naturalenemy of the pest. Oleic, palmitic, and linoleic acids accounted for over 85% of palm oil fattyacid composition. Also, palm oil was approximately 4-fold more toxic to the coconut mite thanto its predator. Furthermore, the lethal... |
| Tipo: Artigo de periódico |
Palavras-chave: Coco; Ácaro; Praga de Planta; Controle Biológico; Óleo Vegetal; Coconuts; Fatty acids; Plant pests. |
| Ano: 2019 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1114018 |
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| SANTOS, C. C. M.; CUNHA, F. dos S.; DAVILA, T. V. B.; LIMA, B. S.; CARVALHO, Y. M. B. G. de; ARAUJO, A. A. de S.; SENA FILHO, J. G. de; CARNEIRO, P. C. F.; SOUSA, R. C. de; FUJIMOTO, R. Y.; MARIA, A. N.. |
| Tipo: Parte de livro |
Palavras-chave: Peixe; Tambaqui; Pesticida. |
| Ano: 2018 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1099465 |
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| DAVIA, T. V. B.; SANTOS, C. C. M.; CUNHA, F. dos S.; LIMA, B. S.; CARVALHO, Y. M. B. G. de; ARAUJO, A. A. S.; SENA FILHO, J. G. de; MARIA, A. N.; CARNEIRO, P. C. F.; SOUSA, R. C. de; FUJIMOTO, R. Y.. |
| Tipo: Parte de livro |
Palavras-chave: Deltametrina; Cipermetrina; Peixe; Inseticida Piretróide; Fish. |
| Ano: 2018 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1099321 |
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| SOUZA, R. M. de; CUNHA, F. dos S.; MENESES, J. O.; LIMA, B. S.; CARVALHO, Y. M. B. G. de; ARAUJO, A. A. de S.; SENA FILHO, J. G. de; DOMPIERI, M. H. G.; MARIA, A. N.; CARNEIRO, P. C. F.; FUJIMOTO, R. Y.. |
| Tipo: Parte de livro |
Palavras-chave: Resumo; Baixo São Francisco; Água; Peixe; Piscicultura. |
| Ano: 2017 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1076064 |
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| FARIAS, A. P.; TEODORO, A. V.; PASSOS, E. M. dos; SENA FILHO, J. G. de; SANTOS, M. C. dos; COLEHO, C. R.; VITERI JUMBO, L.. |
| Los aceites vegetales abundan en plantas oleaginosas y pueden ser una alternativa para el control de plagas en sistemas de manejo integrado. Los ácidos grasos presentes en estos aceites muestran bioactividad a plagas y pueden ser una alternativa al uso de insecticidas recomendados para plantaciones de cítricos. Aunque estos aceites son de origen natural, el impacto en especies benéficas debe ser extensamente evaluado. Este estudio fue conducido a fin de evaluar la toxicidad y la repelencia de aceites crudos de algodón, dendé, soja desgomado y coco a una plaga clave de cítricos, Orthezia praelonga (Hemiptera: Sternorrhyncha: Ortheziidae), y su selectividad al predador Ceraeochrysa caligata (Neuroptera: Chrysopidae). Se realizaron bioensayos de... |
| Tipo: Artigo de periódico |
Palavras-chave: Cochinilla; Proteção Florestal; Repelente. |
| Ano: 2018 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1106489 |
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| JESUS, A. S. de; SENA FILHO, J. G. de; COELHO, C. R.; TEODORO, A. V.; SILVA, A. V. C. da; JUMBO, L. V.. |
| Genipap (Genipa americana L.) is a medicinal tree native to South America and the Amazon regions, where it is used as a popular traditional medicine. It is also highly consumed by people in the form of jams, juices, preserves, and wines. The aim of this study was to evaluate the toxicity, persistence, and the repellence properties of leaf methanolic extracts of genipap (LME) and its major iridoids (genipin and geniposide), against the key coconut pest mite Aceria guerreronis Keifer. The concentration-mortality bioassays revealed a strong acaricidal activity of LME against the coconut mite (LC50 = 0.60 mg.ml-1; and LC90 = 16.69 mg.ml-1). In addition, standard concentrations (0.6 mg.ml-1) of either genipin or geniposide killed 50 % and 62 % of the A.... |
| Tipo: Artigo de periódico |
Palavras-chave: Coco; Genipa Americana; Praga; Praga de Planta; Controle Biológico; Coconuts; Genipa; Biological control. |
| Ano: 2020 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1129290 |
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| BRITO, D. R. B.; PINTO ZEVALLOS, D. M.; SENA FILHO, J. G. de; COELHO, C. R.; NOGUEIRA, P. C. L.; CARVALHO, H. W. L. de; TEODORO, A. V.. |
| Several species of predatory mites, naturally occurring in coconut plantations, play an important role in regulating populations of phytophagous mites that are key pests of this crop. Plant essential oils (EOs) are bioactive mixtures of compounds that hold potential for controlling phytophagous arthropods with minimal impacts on non-target organisms and the environment. This study aimed to characterize the chemical composition and assess the bioactivity of the EO extracted from the leaves of the ?Pera? sweet orange grafted on ?Rangpur lime? to a key pest of coconut plantations worldwide, namely the coconut mite Aceria guerreronis (Acari: Eriophyidae), and its compatibility with the naturally-occurring generalist predatory mite Typhlodromus ornatus (Acari:... |
| Tipo: Artigo de periódico |
Palavras-chave: Laranja Doce; Óleo Essencial; Praga de Planta; Coco; Oranges; Essential oils; Coconuts; Plant diseases and disorders. |
| Ano: 2021 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1137068 |
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| ALMEIDA, A. S. de; COELHO, C. R.; SA, M. S. de; BENTO, E. de S.; WISNIEWSKI JUNIOR, A.; TEODORO, A. V.; XAVIER, H. S.; SENA FILHO, J. G. de. |
| The coconut mite, Aceria guerreronis Keifer (Acari: Eriophyidae), is a major pest of coconut plantations (Cocos nucifera L.) worldwide. Here, we conducted a bioguided phytochemical approach using toxicity and repellency bioassays of nonpolar extract and its fractions of Vitex gardneriana Schauer (Lamiaceae) leaves to this pest. Nonpolar crude extract was fractionated by column chromatography using solvents with increased polarity and binary mixtures, resulting in five semipurified groups. The biomonitoring bioassay provided active fractions and led to the isolation and characterization of the bioactive compound squalene, a biosynthetic precursor of 20-hydroxyecdysone, which plays an important role in plant defense against arthropods. The LC50 of the crude... |
| Tipo: Artigo de periódico |
Palavras-chave: Toxidade; Biopesticida; Coco; Ácaro; Praga de Planta; Controle Biológico; Coconuts; Aceria; Mite control; Mites. |
| Ano: 2022 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1150263 |
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| JESUS, A. S. de; COELHO, C. R.; BARRETO, I. C.; SENA FILHO, J. G. de; NOGUEIRA, P. C. de L.; TEODORO, A. V.; SILVA, A. V. C. da. |
| Genipa americana L. has a diversity of secondary metabolites, including iridoids, phenolic compounds, and alkaloids. Pharmacological and biological properties have also been reported. This study has aimed to evaluate the chemical composition of the essential oil (EO) obtained from the leaves of G. americana and its bioactivity against Aceria guerreronis Keifer (Acari: Eriophyidae), a serious pest of coconut production areas worldwide. EO from the leaves was extracted and analyzed by Gas Chromatography-Mass Spectrometry and flame ionization detection (GC-MS/FID). For the bioassays, the adult coconut mites were subjected to increasing concentrations of EO. The analyses showed a predominance of sesquiterpenes, followed by monoterpenes, aldehydes, and fatty... |
| Tipo: Artigo de periódico |
Palavras-chave: Genipa Americana; Óleo Essencial; Coco; Genipa; Essential oils; Coconuts. |
| Ano: 2019 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1128734 |
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| CUNHA, F. dos S.; SOUSA, N. da C.; SANTOS, R. F. B.; MENESES, J. O.; COUTO, M. V. S. do; SENA FILHO, J. G. de; CARNEIRO, P. C. F.; MARIA, A. N.; FUJIMOTO, R. Y.. |
| Deltamethrin is one of the most commonly used pyrethroids in the world, and it has a high toxic potential, mainly on aquatic organism. Thus, the purpose of this study was to evaluate LC50 values of deltamethrin on tambaqui (Colossoma macropomum) fingerlings and to investigate genotoxic effects and histopathological responses. Fish were exposed to different concentrations of deltamethrin (0, 6.16?×?10?3; 6.44?×?10?2; 1.34?×?10?1, and 1.93?×?10?1 mg L?1) for 96 h. In addition, a genotoxicity analysis was carried out on peripheral blood erythrocytes and histopathological changes were classified by the severity degree of damage and organ functioning. The 96 h LC50 value for tambaqui was estimated at 5.56?×?10?2 mg L?1 using a static test system. Nuclear... |
| Tipo: Artigo de periódico |
Palavras-chave: Deltrametrina; Peixe; Alevino; Tambaqui. |
| Ano: 2018 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1104881 |
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| Registros recuperados: 37 | |
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