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to an attack. Clear away leaf debris lying on the ground around the plants. Take care not to damage leaves and stems unnecessarily.irisesspring, summer, autumnCommon fungal problems affecting plantsRustRhododendron leaf spotTulip firePrimula leaf spot

. primulassummerMore common fungal problemsIris leaf spotBlack spotHollyhock rustRhododendron leaf spot

pull them out if they appear in the garden. Every two weeks from early spring onwards spray plants with a systemic action fungicide.hollyhocks, mallowall year roundCommon fungal problems affecting plantsIris leaf spotRose blackspotRose rustTulip fire