Box Tree Caterpillars - PEST UK

Providing pest control services in Berkshire, Buckinghamshire, Essex, Hampshire, Hertfordshire, Kent, London, Middlesex, Northamptonshire, Oxfordshire, Surrey, West Midlands, West Sussex, Wiltshire. Est. 1985.

Box Tree Caterpillar Treatment

Prices from £90 +VAT

To get rid of a box tree caterpillar infestation from your garden at home or at your business premises call 0800 026 0308

Pest UK Company Logo


We can't guarantee that the treatment for Box Tree Caterpillars will eliminate an infestation. However it will kill the majority of caterpillars present at the time of treatment.

Box tree caterpillars are a devastating garden pest. They strip box hedges of their leaves in a very short time which will kill the plants. If the caterpillars are removed before they have eaten all the leaves it’s likely the box will recover.

Signs of a box tree caterpillar infestation

  • Small patches of nibbled leaves.
  • Densely woven webbing which is where the caterpillars hide.
  • The caterpillars are green-yellow so easy to spot.

How our treatment works

The affected hedges are sprayed with a biological insecticide based on the Bacillus thuringiensis bacterium. The caterpillars eat the treated box leaves which will cause them to stop feeding and die within a couple of days.

Other insects aren’t affected by this insecticide as it only affects the caterpillars which eat the treated leaves. Birds aren’t harmed when they eat the dead caterpillars.

We recommend that this treatment is carried out as soon as you see the caterpillars to prevent a massive infestation which will kill the plants. The best time to treat the box hedge is on a dry day during a dry spell as the insecticide is biodegradable.

The treatment may not eliminate an infestation but it will kill the vast majority of caterpillars present at the time of treatment. More than one treatment may be required.

Facts about the box tree caterpillar

The box tree caterpillar is native to China.

Gardens in the UK have been hosting box tree caterpillars since 2008.