BBC Gardeners' World

Problem solving

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  Aphids

  Distorted, curled-up leaves on the new growth of plants.

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  Bay leaf suckers

  Thickened, yellow, curling leaves on bay trees.

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  Black spot

  Dark spots on shrubs' leaves, that turn yellow and fall.

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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.

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  Caterpillars

  Shredded leaves caused by an infestation of caterpillars.

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  Cuckoo spit

  White froth on stems, leaves and buds of many plants.

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  Euonymus scale

  Yellow patches on leaves of euonymus plants.

How to

keep new and established plants well fed