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| Paz,Dannielle Silva Da; Araujo,José Ribamar Gusmão; Rodrigues,Antônia Alice Costa; Silva,Erlen Keila Candido e; Diniz,Nathália Bandeira. |
| ABSTRACT Papaya target-spot, caused by fungus Corynespora cassiicola presents a wide geographic distribution, causing leaf spots in several hosts. The aim of this research was to evaluate the behavior of papaya varieties and/or selections to the natural occurrence of target spot, and test the fungi toxic effect of neem, citronella and eucalyptus extracts, and fungi static effects of Bacillus isolates on the fungus C. cassiicola in vitro. To evaluate the natural occurrence of the disease in field, symptoms on leaves of 11 papaya varieties and/or selections have been assessed. The pathogenicity of isolates was verified by inoculation of plants in greenhouse. Neem, citronella and eucalyptus extracts were prepared at concentrations of 10, 15 and 20% and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Carica papaya L.; Azadirachta indica; Cymbopogon nardus; Biocontrol; Target spot. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452018000100405 |
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| CANIATO,Matheus Miranda; CATARINO,Aricléia de Moraes; SOUSA,Thiago Fernandes; SILVA,Gilvan Ferreira da; BICHARA,Karina Pryscilla de Araújo; CRUZ,Jeferson Chagas da; ASSIS,Luiz Alberto Guimarães de; HANADA,Rogério Eiji. |
| ABSTRACT The use of bacteria in growth promotion and biological control of plant diseases can minimize environmental contamination caused by the indiscriminate use of pesticides and chemical fertilizers. We aimed to evaluate growth promotion and biological control of Corynespora cassiicola in tomato seedlings mediated by beneficial bacteria isolated from a non-rhizospheric Amazon soil containing different amounts of biochar, and to identify to which groups of bacteria the strains belong. We obtained 200 strains of bacteria from experimental plots containing biochar doses of 0, 40, 80 and 120 t ha-1. Of these, 53 strains were selected by root colonization tests. Based on growth promotion parameters, 25 strains were screened, identified by molecular... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Beneficial bacteria; Corynespora cassiicola; Solanum lycopersicum; Target spot. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000400278 |
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