5 documents found, page 1 of 1
In vitro studies of the anthelmintic activity of Picrolemma sprucei Hook. f. (S...
Nunomura, Rita de Cássia Saraiva; Silva, Ellen Cristina Costa da; Oliveira, Denilson Ferreira; Garcia, Adriana Mello; Boeloni, Jankerle NevesNa concentração de 1300 ppm (1.3 g / L), extratos aquosos e etanólicos preparados a partir dos caules ou raízes de Picrolemma sprucei Hook. f. apresentaram letalidade (85-90 % de mortalidade) in vitro para Haemonchus contortus, um nematóide parasítico do aparelho gastrointestinal de ruminantes domesticos e silvestres. Neosergeolida e isobruceina B foram isoladas dos caules em rendimentos de 0.0083 and 0.0070 %,...
Volatile Substances Produced by Fusarium oxysporum from Coffee Rhizosphere and ...
Freire, E. S.; Silva, J. R. C.; Campos, V. P.; Pinho, R. S. C.; Oliveira, Denilson Ferreira; Faria, M. R.; Pohlit, Adrian Martin
Chalcones to control Alternaria alternata in murcott tangor fruits
Camargos, Renato Barbosa; Perina, Fabiano José; Carvalho, Daniel Diego Costa; Alves, Eduardo; Mascarello, AlessandraAlternaria brown spot (ABS), caused by the fungus Alternaria alternata pathotype tangerine, is one of the main phytosanitary problems for mandarin growers. About 15 applications per year of harmful fungicides are required for controlling ABS disease in citrus orchards. As chalcones seem to be less toxic to humans and environment than the commercial fungicides in use, this study initially aimed at synthesizing 1...
Acaricidal activity of Annonaceae fractions against Tetranychus tumidus and Tet...
Alves, Dejane Santos; Morejón, Reinaldo Chico; Machado, Alan Rodrigues Teixeira; Carvalho, Geraldo Andrade; Pina, Oriela; Oliveira, Denilson FerreiraSpecies of the Tetranychus genus feed on plant tissues, which reduces the rate of photosynthesis and can lead to the death of plant tissues. As a result, considerable production losses are caused by these arthropods. Thus, in order to aid in the development of new products for the control of Tetranychus tumidus Banks and Tetranychus urticae Koch (Acari: Tetranychidae), the initial objective of this study was to...
Plant extracts controlling the citrus mealybug, Planococcus citri (RISSO, 1813)...
Santa-Cecília, Lenira Viana Costa; Santa-Cecília, Flávia Viana; Pedroso, Elizabeth do Carmo; de Sousa, Marcella Viana; Abreu, Fernanda AparecidaThe citrus mealybug, Planococcus citri (Risso, 1813), is a sap-sucking insect that attacks the rosettes of coffee plants, causing losses to production. A potential strategy to be adopted in the integrated management of this pest (IPM) comprises the use of plant extracts with insecticidal activity. Thus, to determine the potential of some plants in the control of P. citri, the activities of extracts prepared fro...