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hot spells and provide shading. Promptly pick off any split tomatoes before they start to rot.tomatoessummer to autumnCommon problems affecting tomatoesTomato leaf mouldTomato blightTomato frost damageBlossom end rot

plants in our video from the Gardeners' World garden at Berryfields.courgettes, outdoor cucumbers, marrows, pumpkins, squashesearly summer Common problems affecting vegetable plantsPotato blightPea and bean weevilsCarrot root fly

, and place horticultural fleece over the seedlings, which will provide a physical barrier against the pest. Some carrot varieties - 'Resistafly', 'Sytan' and 'Fly Away' - are less prone to attack.carrots, celery, parsley, parsnipsspring Common problems when

. 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

are your best allies. Ladybirds can be bought as a biological control, and you can also buy ladybird houses to encourage these helpful creatures to take up residence in your garden. They need time to tackle the problem, so don't expect them to hoover up

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

anythingearly spring, summerMore common garden pestsLeatherjackets on lawns, brassicas, strawberries and ornamental plantsElephant hawk moth on fuschia plantsWhitefly on greenhouse plantsMullein moth - affecting verbascum, buddleja and figworts.

with the hose.roses, dahlias, fuchsias, lavender, rosemary and many garden plantsspring, summer, autumnMore common garden pestsCapsid bugsEuonymous scalePhormium mealybugScale insects