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Fungicide Application Technology For Controlling The Sugarcane Orange Rust, Thales Cassemiro Alves, João Arantes Rodrigues Da Cunha, Rafael Marcão Tavares, Guilherme Sousa Alves, Sérgio Macedo Silva
Fungicide Application Technology For Controlling The Sugarcane Orange Rust, Thales Cassemiro Alves, João Arantes Rodrigues Da Cunha, Rafael Marcão Tavares, Guilherme Sousa Alves, Sérgio Macedo Silva
West Central Research and Extension Center, North Platte
With the epidemic onset of the sugarcane orange rust, fungicide applications of the Strobilurins and Triazoles groups have become necessary in susceptible varieties. This study aimed at evaluating the operational conditions of fungicide application in sugarcane (SP81-3250 variety), in relation to the spray deposition on the upper canopy and the effectiveness of the orange rust control. Treatments consisted of two application volumes (30 L ha-1 or 40 L ha-1) and three nozzle deflection angles (0 º, 90 º or 135 º), plus a ground application at the rate of 200 L ha-1, sprayed with a uniform flat spray nozzle of …