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- Title
Fungicide application technology for controlling the sugarcane orange rust.
- Authors
Alves, Thales Cassemiro; Rodrigues da Cunha, João Paulo Arantes; Tavares, Rafael Marcão; Alves, Guilherme Sousa; Silva, Sérgio Macedo
- Abstract
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 °, 90 ° or 135 °), plus a ground application at the rate of 200 L ha-1, sprayed with a uniform flat spray nozzle of air induction. The ground application resulted in the smallest and the greatest spray deposition on sugarcane leaves and on the soil, respectively. The aerial application at the rate of 30 L ha-1, sprayed by hollow cone nozzles, at a deflection angle of 135 °, provided the best sugarcane orange rust control.
- Subjects
FUNGICIDES; SPRAYING &; dusting in agriculture; SUGARCANE; RUST fungi; RUST diseases; PUCCINIA
- Publication
Agricultural Research in the Tropics / Pesquisa Agropecuária Tropical, 2019, Vol 49, Issue 1, p1
- ISSN
1517-6398
- Publication type
Article