Lopes, Ueder PedroZambolim, LaércioSouza Neto, Pedro NerySouza, Antônio FernandoCapucho, Alexandre SandriRodrigues, Fabricio de Ávila2022-01-262022-01-262013LOPES, U. P. et al. Effect of foliar application of potassium silicate on the progress of coffee leaf rust2013. Tropical Plant Pathology, Brasília, v. 38, n. 6, p. 547-551, nov./dez. 2013.1983-2052https://www.scielo.br/j/tpp/a/LXJXWYS3n7xjjZsvbcR9rcn/?format=pdf&lang=enhttp://www.sbicafe.ufv.br/handle/123456789/13241In order to evaluate the effect of potassium silicate spray on the control of coffee leaf rust and coffee yield, an experiment was conducted during the 2005/2006 and 2006/2007 growing seasons on Coffea arabica cv. Catuaí Vermelho IAC 144, in a location situated at an elevation of 850 m in Coimbra, Minas Gerais, Brazil. The treatments consisted of: 1 - potassium silicate; 2 - potassium silicate + copper hydroxide; 3 - copper hydroxide; 4 - epoxiconazole formulated with pyraclostrobin and 5 - control treatment. Six applications of potassium silicate and copper hydroxide were made twice per month from December to March of each year. Two applications of the systemic fungicide were done in December and March of each year. Potassium silicate alone or in combination with copper hydroxide was not efficient in reducing coffee leaf rust incidence and increasing yield under high incidence of coffee leaf rust.pdfenOpen AccessCoffea arabicaHemileia vastatrixCopperSiliconCafeicultura::Pragas, doenças e plantas daninhasArtigo