Controle da podridao parda do cacaueiro com fungicidas cúpricos
A fungicide screening experiment to investigate the efficacy of copper fungicides for the control of cacao black pod disease (Phytophthora palmivora) was installed on a cacao farm where a high level of disease existed. Three copper oxychloride formulations: Gafex, Recop, and Funguran Green, and Kocide 6F, a hydroxide formulation were compared with a cuprous oxide, Copper Sandoz, as standard formulation. In all copper formulations a sticker, Ag-Bem at the rate of 0,5 per cent was incorporated. Five applications were accomplished during the year at a dose of 4 g of a.i. per plant in a volume of 140 l of water per ha. An analysis of the results suggested that Kocide 6F and Gafex were more efficient, in terms of better percentage of disease control, and also superior to the other fungicides. All the fungicides tested showed good control of the disease when compared to unsprayed plots
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| Format: | biblioteca |
| Published: |
1980
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| Subjects: | THEOBROMA CACAO, PHYTOPHTHORA PALMIVORA, PODREDUMBRES, ENFERMEDADES FUNGOSAS, FUNGICIDAS, CONTROL QUIMICO, COMPUESTO ORGANICO DEL COBRE, |
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