BBC Gardeners' World

Problem solving

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  Flea beetle

  Many holes on upper leaves of brassicas and ornamentals.

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  Fungi

  Fungi or toadstools on lawns, often after wet weather.

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  Gooseberry mildew

  Mildew on surfaces of leaves and fruits of gooseberries.

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  Greater plantain

  Deep-rooted weed that plagues lawns and borders.

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  Grey mould on soft fruits

  A thick layer of grey mould develops on soft fruits.

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  Ground elder

  Vigorous, spreading weed that smothers other plants.

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  Groundsel

  Bushy weed, often with rust fungus on its leaves.

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  Hairy bitter cress

  Invasive weed that competes with ornamental plants.