Damage symptoms:
On young leaves small reddish spots develop, which dry later. The fungus kills the tissue in those spots, small red-framed holes occur. The leaves look like shot. The infested leaves fall down prematurely and the fungus encroaches on fruits and sprouts, plants sap lightly.
Living:
In spring, the fungal spores are transplanted to the young leaves of cherry and other stone-fruit species by rain and wind. The fungus hibernates in mummies hanging on the tree, in leaves fallen down and infested twigs. In spring and summer, it infests the new sprouts from there. The freckles at the bottom of the leaves are visible easily. In rainy regions, the shot disease infests all stone-fruit species, especially cherry, plum, peach and cherry laurel.
Prevention:
Cut regularly to keep the crown airy and dry.
Spray with horsetail liquid while sprouting.
Eventually spray garlic tea.