Correct positioning helps your Box Tree Moth trap attract and capture moths effectively. In this guide, we explain where to hang your trap, how high it should be positioned and how often its pheromone lures need replacing.
WHERE SHOULD YOU POSITION A BOX TREE MOTH TRAP?
Position your Box Tree Moth trap in an open location close to your box plants, but avoid hiding it deep inside dense foliage.
The pheromone needs to disperse through the surrounding air so male Box Tree Moths can detect it and locate the trap. A heavily sheltered position may restrict airflow and make the trap less effective.
For BuxTrap, we recommend positioning the trap within approximately two metres of your box plants. This keeps it close enough to monitor local moth activity without placing it directly inside the hedge.
Choose a position that:
- Is close to the box plants you want to monitor
- Has reasonable airflow around the trap
- Is accessible for regular checking
- Is not buried inside dense foliage
- Allows the trap to hang freely and remain upright
HOW HIGH SHOULD A BOX TREE MOTH TRAP BE?
Hang BuxTrap approximately 1–1.5 metres above the ground. It can be positioned slightly higher, up to around 1.8 metres, where this provides better airflow around taller hedges.
The trap does not need to hang directly above the hedge. A nearby tree branch, garden structure, shepherd’s hook or suitable trap stand can all provide an effective position.
Make sure the trap remains upright and is not obstructed by branches, leaves or other objects.
SHOULD THE TRAP HANG INSIDE THE BOX HEDGE?
Avoid placing the trap deep inside the box hedge.
Although positioning it within the plant may seem logical, dense foliage can prevent the pheromone from dispersing freely. It can also make the trap harder to check, clean and refill.
Instead, hang it in a more open position nearby, ideally within two metres of the box plants.
This allows the trap to monitor moth activity around the hedge while remaining easy to maintain.
HOW TO SET UP BUXTRAP
BuxTrap uses two pheromone lures at the same time. Each lure has a different position within the trap:
- Place one pheromone vial in the holder located in the trap lid.
- Place the second pheromone vial inside the lower lure cage.
- Add approximately 2–5cm of water to the bottom of the trap.
- Add a few drops of washing-up liquid to the water.
- Reassemble the trap and hang it in the chosen position.
Open each foil sachet only when you are ready to install the lure. Keep unused lures sealed until they are required.
WHY DOES BUXTRAP USE TWO PHEROMONE LURES?
The dual-lure arrangement is designed to help attract male Box Tree Moths towards the trap and guide them into its funnel chamber.
The pheromones mimic the scent released by female Box Tree Moths. Male moths follow the scent into the trap, where they are captured.
Captures provide an early indication that adult moths are active near your box plants. This gives you an opportunity to inspect the hedge carefully before caterpillar damage becomes extensive.
WHEN SHOULD YOU INSTALL YOUR TRAP?
Install your Box Tree Moth trap from around mid-March, before the main period of adult moth activity begins.
Continue using it throughout spring, summer and early autumn. Exact activity can vary depending on temperature, weather and location, so calendar dates should be treated as guidance rather than a guarantee.
Starting early helps you identify the beginning of local moth activity rather than waiting until visible damage appears.
HOW OFTEN SHOULD THE PHEROMONE LURES BE REPLACED?
Replace both BuxPhero lures every 4–6 weeks during the active season.
The pheromone is gradually released after the sachet is opened. Although the vial may still look unchanged, its effectiveness will reduce over time.
It is helpful to record the installation date whenever you add new lures. You can set a calendar reminder for the next replacement date so monitoring is not interrupted.
Always replace both lures together.
HOW OFTEN SHOULD YOU CHECK THE TRAP?
Check BuxTrap regularly throughout the active season—ideally at least once a week.
When checking it:
- Record the number of captured moths
- Remove captured insects when required
- Check the water level
- Refresh the water and washing-up liquid when necessary
- Make sure the trap is still hanging correctly
- Check when the pheromone lures need replacing
A sudden increase in captured moths means you should inspect your box plants closely.
Look inside the hedge as well as around its exterior. Box Tree Caterpillars can remain hidden within dense foliage and webbing.
DOES BUXTRAP TREAT BOX TREE CATERPILLARS?
BuxTrap is principally a monitoring and moth-capture tool. It does not treat caterpillars already feeding on your box plants.
The trap attracts adult male Box Tree Moths, helping you detect local activity and monitor changes throughout the season. Capturing male moths can also help reduce mating opportunities, but the trap should not be treated as a complete solution to an active caterpillar infestation.
If you discover caterpillars, webbing or fresh feeding damage, use an appropriate box tree protection or treatment product according to its instructions.
A complete approach should include:
- Monitor: Use BuxTrap and BuxPhero to identify adult moth activity.
- Inspect: Check the inner and outer foliage regularly.
- Protect or treat: Respond appropriately when activity or damage is found.
- Maintain: Replace the lures and continue monitoring throughout the season.
HOW MANY BOX TREE MOTH TRAPS DO YOU NEED?
One BuxTrap is generally suitable for monitoring a small to medium-sized garden.
Larger gardens, separate groups of box plants or extensive hedging may require more than one trap. Each trap should be positioned where it can monitor a distinct area without being hidden inside dense foliage.
Where multiple traps are used, check them on the same schedule and record activity in each location. This can help identify which parts of the garden are experiencing the greatest moth pressure.
COMMON BOX TREE MOTH TRAP POSITIONING MISTAKES
Avoid these common mistakes:
- Hiding the trap deep inside a box hedge
- Hanging it where surrounding foliage blocks airflow
- Positioning it too far from the plants being monitored
- Allowing the trap to tilt or rest against a branch
- Forgetting to add or refresh the water
- Using only one lure instead of the required two
- Leaving the same lures installed for longer than recommended
- Assuming the trap treats caterpillars already inside the hedge
Correct placement and regular maintenance are both essential. Even a well-positioned trap will become less effective if its pheromone lures are not replaced.
MONITOR YOUR BOX PLANTS THROUGHOUT THE SEASON
A Box Tree Moth trap works best as part of an ongoing monitoring and protection plan.
Position BuxTrap in an open location near your box plants, install both pheromone lures and check it regularly throughout the active season. When moth captures increase, inspect your hedge closely and take appropriate action before caterpillar feeding causes extensive damage.
