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Predicted start of phoma stem canker (L. maculans) in spring. Predicted number of days after 15 July until the date in spring when the first phoma stem canker is observed on winter oilseed rape crops (mean of resistant and susceptible cultivars) affected with L. maculans for (a) baseline 1960–1990, (b) 2020LO, (c) 2020HI, (d) 2050LO and (e) 2050HI climates. Areas unaffected by the disease are white.
