BBC Gardeners' World

Problem solving

• 

  Ants

  Wilting plants and ant tunnels in container-grown plants.

• 

  Aphids

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

• 

  Canker

  Trees with sunken bark and red or white pustules.

• 

  Capsid bugs

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

• 

  Cuckoo spit

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

• 

  Leaf miner fly

  Beige-coloured wiggly lines on leaves of plants.

• 

  Leaf-cutter bees

  Round notches 'cut' from plant leaves, especially roses.

• 

  Leafhopper

  Yellow to whitish mottling of upper surface of leaves.