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Eco-trap for processionary moth caterpillars - oak or pine

Product Code: piege-chen-30/013
Availability: In Stock
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Standard delivery charge of £9.90


Oak and pine processionary moth caterpillar eco-trap

There are some insect pests you do not want in your garden... and then there are some that you really do not want: like the oak and pine processionary moth caterpillars. In Europe these distinctive caterpillars can be found defoliating pine and oak trees, before marching in parade to the ground and heading for the next tree.

Not only do these caterpillar damage trees, but contact with their ‘fur coat’ of tiny bristles can cause skin irritation and itchy rashes. People near densely populated infestations can even suffer from breathing difficulties and eye problems.

Unfortunately, the oak processionary moth (Thaumetopoea processionea) has recently arrived in the UK and is spreading rapidly in Southern England. Eradicating this invasive pest completely is now considered impossible.

An environmentally-friendly trap for the oak processionary caterpillar.

If your garden has processionary moth caterpillars our eco-traps can help.

Designed specifically to target processionary moth larvae, they are a simple and effective way to manage pine and oak processionary caterpillars at a local level. The trap takes advantage of the caterpillars’ natural behaviours: simply install the trap on to an infested tree-trunk. After a few days, the caterpillars will begin to descend. When the trap bag is full, remove and dispose of it and attach a new bag or move the trap to a different tree. No pesticides or sprays required!

The main part of the trap is fully reusable.

Trap Kit Contains:

  • 1 trunk strap
  • 1 foam seal
  • Plastic tubing to funnel caterpillars
  • 1 disposable capture bag
  • glue and installation instructions

Traps should be placed out of reach of children and domestic animals, but below the tree’s first branch. There are four trap sizes available. Be sure to pick the one most appropriate for your tree(s) circumference:

- 30cm trap : for tree trunks measuring between 15 and 30cm in diameter or 0.30m to 0.94m in circumference.
- 55cm trap : for tree trunks measuring between 30 and 55cm in diameter or 0.85m to 1.75m in circumference.
- 80cm trap : for tree trunks measuring between 1m to 2.10m in circumference.
- 100cm trap : for tree trunks measuring between 1.80m to 3.20m in circumference.


  1. Place the trunk strap around the infested tree. Use the biodegradable sealant glue to fill any remaining spaces.
  2. Slot the plastic tube into the main section of the trap, through the hole provided. Connect the other end of the tube to the collection bag.
  3. Wrap the foam around the trunk to help seal the trap in place, adjust the trap diameter, and prevent sneaky caterpillar escapes.
  4. Leave the bag in place for at least 2-3 days- longer if required. The bag is designed to hold roughly 6 nests of caterpillars. For heavier infestations you may wish to check and change the bag more frequently.
  5. When the bag is full, dispose of the bag and caterpillars. Please do not empty the bag or allow live caterpillars to escape it.

Remember: Do not touch these caterpillars as they can skin irritation and respiratory distress. You may wish to wear gloves while handling items near a processionary moth infestation. If you are concerned about the potential health implications of contact with this species, please consult your GP or other medical professional.

Currently, the oak processionary moth is known to occur in areas of London and Southern England. For the more information about the UK spread of this species, visit the official Forestry Commision processionary moth website : www.forestry.gov.uk/opm.

If you think you have encountered this species in other regions, you may wish to contact the Forestry Commission.

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