BBC Gardeners' World

Problem solving

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  Ants

  Wilting plants and ant tunnels in container-grown plants.

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  Apple and pear scab

  Brown blotches on foliage and fruit of apples or pears.

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  Apple sawfly

  Scarred, misshapen apples or young apples fall early.

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  Apple sooty blotch

  A mass of sooty, greenish or brown spots on fruit.

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  Blossom end rot

  Spots, turning into leathery dark brown areas on fruits.

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  Brown rot

  Brown spots and pustules on fruits of fruit trees.

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  Canker

  Trees with sunken bark and red or white pustules.

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  Capsid bugs

  Small, brown-ringed holes on the leaves of many plants.