Assessment of the susceptibility of peach cultivars to Powdery mildew (Podosphaera pannosa) Giovannini, Daniela Noll, Daniela Spornberger, Andreas Ruesch, Julien CREA - Council for Agricultural Research and Economics other https://orgprints.org/id/eprint/57476/ /id/eprint/57476/2/pow-peach.png /id/eprint/57476/7/InnOBreed_practice%20abstract_Powdery%20mildew.pdf open access 2026 temperate fruits disease tolerance diseases plant disease control