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Irrigation has been used widely on coffee growth in Brazil. Knowledge of water effects on plant diseases is necessary to better management of irrigation systems to improve the sustainable agriculture. This research evaluated the center pivot irrigation, with different water levels, based on the crop coefficient of culture or Kc and your effect in the temporal progress of leaf rust and brown eye spot of coffee plants. Number of spores dispersed in the air was also evaluated. It was observed that different water levels applied through center pivot irrigation influenced the intensity of coffee leaf rust and brown eye spot. Largest intensity of leaf rust was observed at non irrigated plants and the lowest at irrigated with water depths equivalent to 100%, 120% and 140% of Kc. On the other hand, leaf brown eye was larger when more water was applied, with largest incidences at plants irrigated with 100 and 140% Kc while the incidence was the lowest at non irrigated plants. The results had a correlation with a coffee production. It was observed that number of leaves on coffee increased linearly as water depth increased. Acknowledgments: Capes, Cnpq and Fapemig. <p><p>Keywords: Fungus, Tropical-Subtropical Crops, Coffee