Laburnum, poplar, Prunus and rhododendron are examples of susceptible plants where protective wound paints such as Growing Success Prune and Seal, Provanto Arbrex Seal and Heal or Vitax Medo might be worthwhile. However, where silver leaf is a recurring problem, painting wounds of susceptible trees might be the less harmful option. We no longer recommend binding, wrapping or painting pruning cuts as standard practice the best thing is to let them heal naturally. Dispose of the pruned material immediately, as fruiting bodies will still form if it is left lying around. In the spring of the year growth begins at buds, and twigs grow until a new node is formed. Proper pruning cuts are made at a node, the point at which one branch or twig attaches to another. Cutting equipment should be disinfected regularly. As trees mature, the aim of pruning will shift to maintaining tree structure, form, health and appearance. The branch should be cut off, where possible, at a point 10-15cm (4-6in) beyond the area where the staining in the internal tissues ceases. Where silver leaf develops the affected branch should be removed as soon as possible, certainly before the fungal fruiting bodies appear. Not only are there fewer spores at this season but pruning wounds, the main point of entry for the spores, heal more quickly. Since the fungus produces most of its infectious spores in autumn and winter, ideally carry out routine pruning of susceptible plants in summer. Malvern Autumn Show - 22–24 September 2023.RHS Garden Wisley Flower Show - 5–10 September 2023.RHS Garden Rosemoor Flower Show - 18–20 August 2023.RHS Garden Hyde Hall Flower Show - 2–6 August 2023.
RHS Flower Show Tatton Park - 19–23 July 2023.RHS Hampton Court Palace Garden Festival - 4–9 July 2023.
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