Fig. 1.

Half‐violin plots of the posterior probability distributions, which visualize the probabilities for proportions of infected plants within trays for Ochropsora (orange), Tranzschelia (blue), Synchytrium (red) and Urocystis (yellow) when (a) seedlings were inoculated with spores, (b) rhizomes were inoculated with spores and (c) rhizomes were infected previously. Below each panel, the probability that a treatment will have more infected plants than the control treatment is given (i.e. the proportion of the probability distribution that is above zero). Probabilities > 95% are shown in bold. See Supporting Information Fig. S2 for results on the nonadditive effect of spore inoculation and previous infection on the proportion of infected plants. See Supporting Information Table S1 for details of the fitted models.