49 strawberry clones were tested for the reaction to the natural incidente of Ramularia tulasnei in field condictions, in Piracicaba, São Paulo State. The evaluation were done using a scale of 1 (denoting no infection) to 6 (indicating a severe infection) in the phase of highest severity of the disease; the clones were classified in resistants (1.00 to 2.30), moderately resistants (2.31 to 3.70), and susceptibles(3.71 to 5.00). 11 resistant clones, 31 moderately resistant, and 7 susceptible ones were identified. The resistant clones were "1-2008" (grade 1.00 ± 0.00), "IAC-2713", "Camanducaia (IAC-3530)", "A. Brucknner (1-2492)", "IAC-3113 x (IAC-2712 x 1-2008-1)-10", "IAC-4326", "IAC-3530 x IAC-2747-2", "Konwoy (1-3846)", "Atibaia (IAC--4325)", "IAC-4896-4", and "IAC-4749"; the most susceptible one was "Jundiai (IAC-4204)" (grade 5.00 ± 0.41).