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Ciência Rural

Print version ISSN 0103-8478

Abstract

CHAPOLA, Roberto Giacomini; OGASAWARA, Gustavo Akio; JANS, Bruno  and  MASSOLA JUNIOR, Nelson Sidnei. Control of pineapple disease of sugarcane through in-furrow fungicide spray application on seedpieces. Cienc. Rural [online]. 2014, vol.44, n.2, pp.197-202. ISSN 0103-8478.  http://dx.doi.org/10.1590/S0103-84782014000200001.

Sugarcane pineapple disease, caused by the fungus Thielaviopsis paradoxa, can cause germination and yield decreases of up to 50% and 42%, respectively. The aim of this research was to assess the control of this disease through in-furrow fungicide application on seedpieces. Two experiments were installed in greenhouse and one under field conditions with this purpose. The substrate and the soil were infested with the pathogen before the sugarcane planting and the fungicides were sprayed on seedpieces immediately after the planting with a CO2 backpack sprayer. Seedpieces in-furrow spraying was effective in controlling the pineapple disease with certain fungicides, providing up to 12% yield recovery. Among the tested treatments, the fungicides pyraclostrobin + epoxiconazole; pyraclostrobin and propiconazole showed good potential for pineapple disease control.

Keywords : Thielaviopsis paradoxa; Saccharum spp; chemical control; germination.

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