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The problem looks worse than it is. Miniscule mites secrete chemicals that cause blistering or blotches on the new leaves, which gradually turn blackish-brown. Although the mites breed prolifically, producing several generations over summer, the productivity of the tree isn't usu...

, 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

-autumn.Treat the lawn with an insecticide containing imidacloprid from May to October.lawns, strawberries, brassicas, some ornamental plantsspring to autumnMore common garden pestsPea and bean weevilsCaterpillarsFlea beetleEarwigs

When apple trees are in flower, the sawfly, Hoplocampa testudinea, lays its eggs in the developing fruit. In June, the larvae tunnel their way under the skin of the fruit and into the core, causing the apples to fall. When they're ready, they tunnel out of the apples, creating a ...

.a range of ornamental plants, trees, shrubs, herbs, some vegetables, fruitspring, summerMore common garden pestsAphidsScale insectsFlea beetleEarwigs

growth. Check the pots daily.clematis, dahlias, chrysanthemums and other plantsspring, summer, autumnMore common garden pestsWaspsSlugsAntsCaterpillars

to autumnDealing with common garden pestsMealybugsWhiteflyLeaf miner flyEuonymus scale

, thus exposing the bugs to predators. But they're not all bad, as some capsid bugs feed on small pests.a wide range of plants, including chrysanthemums, dahlias, fuchsias, apples, beans and potatoesspring, summerMore common garden pestsLeaf miner fly

, the moment the symptoms appear. Wait a minimum of two weeks after spraying before using leaves in the kitchen.bay leavesmid- and late-springKeeping garden pests at bayWhiteflyMealybugsScale insectsRed spider mites

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.