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. Space plants out to ensure good air circulation, and water early enough in the day to allow the leaves to dry out before nightfall. Also remove any garden debris that might harbour the fungus.lettucessummer to autumnMore common fungal problems

with copper fungicide every 10 days or so. They don't provide 100 per cent protection, but an attack will be slowed down and you should get a ripe crop.potatoes, tomatoessummer, autumn, winterMore advice on growing potatoesAdvice on earthing up potatoes

and the soil around it with a fungicide suitable for the control of rust fungus.roses, fruit trees, ornamental trees, shrubs, perennials, vegetables spring, summer, autumnOther problems affecting garden plantsHollyhock rustRose rustBlack spotIris leaf spot

The fungus that causes this problem spreads rapidly in the warm, humid conditions of a greenhouse. It usually becomes apparent on the lowest tomato leaves from early or midsummer, which develop yellow blotches on the upper leaf surface. The leaves

kill a plant. Since there are separate fungal species that affect different plants, an attack on your curcubits won't lead to a garden epidemic. Powdery mildew and powdery mildew on roses are similar problems, with similar solutions.The first sign