One Nest Became Seven – Thorough OPM Inspection Saves a Horley Homeowner from a Larger Infestation

Finding One OPM Nest Doesn't Mean There's Only One

When a homeowner in Horley, Surrey contacted ArborLife Tree Surgeons after spotting what appeared to be a single Oak Processionary Moth (OPM) nest while relaxing in their garden, they believed they had caught the problem early.

Fortunately, they called in the specialists before attempting to deal with it themselves.

On arrival, our first job wasn't to climb the tree—it was to carry out a detailed inspection of the entire canopy.

Using professional Swarovski binoculars, we carefully examined every major limb of the mature oak tree from the ground.

What initially looked like one isolated nest quickly became something much more significant.

By the end of the inspection we had identified six additional OPM nests, all hidden amongst the dense foliage and impossible to see from ground level without specialist equipment.

Professional Tree Inspections Reveal Hidden Infestations

Oak Processionary Moth nests are often concealed high within the canopy or tucked behind large scaffold branches.

Many homeowners only notice the most obvious nest, while several others remain hidden.

That's why every ArborLife inspection includes a systematic visual survey before any climbing begins.

Using high-quality optics allows us to:

• Identify multiple nests before work starts
• Plan the safest climbing route
• Estimate the extent of the infestation
• Ensure every visible nest is removed during a single visit

This thorough approach saves time and helps reduce the likelihood of nests being missed.

Safe Removal High Within the Oak Canopy

Once the inspection was complete, Declan suited up in specialist protective clothing designed specifically for Oak Processionary Moth removal.

Wearing full PPE, respiratory protection and climbing equipment, he ascended the mature oak tree using rope and harness techniques.

Working methodically around the canopy, each nest was:

• Carefully detached
• Immediately sealed inside containment bags
• Lowered safely to the ground
• Removed for safe disposal

By the end of the operation, all seven identified nests had been successfully eradicated.

Experience Makes the Difference

Every Oak Processionary Moth infestation is different.

Some trees contain a single easily visible nest, while others may have numerous colonies hidden throughout the canopy.

Our experience allows us to:

✔ Spot subtle signs of infestation

✔ Inspect every part of the canopy

✔ Access difficult areas safely

✔ Remove nests without unnecessary disturbance

✔ Reduce the risk of hazardous hairs spreading around the property

It's this attention to detail that has made ArborLife one of Surrey's trusted specialists for OPM removal.

Protecting Homes Across Surrey

Throughout May, June and July, our arborists travel across Surrey removing Oak Processionary Moth infestations from:

• Private gardens
• Schools
• Estates
• Parks
• Commercial properties
• Public open spaces

Early detection and professional removal help protect families, pets and neighbouring properties while preserving the health of valuable oak trees.

Why Choose ArborLife Tree Surgeons?

We specialise in professional Oak Processionary Moth management throughout Surrey and surrounding counties.

Our service includes:

• Detailed OPM inspections
• Professional canopy surveys
• Safe rope access climbing
• Specialist nest removal
• Emergency call-outs
• Tree health advice
• Responsible disposal of hazardous material

Every project is carried out using professional arboricultural techniques and in accordance with BS3998 Tree Work Recommendations.

Frequently Asked Questions

Can Oak Processionary Moth nests be hidden?

Yes. Many nests are concealed high within the canopy or behind larger branches, making them difficult to spot from the ground.

Why do you inspect the whole tree before climbing?

Finding one visible nest doesn't mean it's the only one present. A full inspection helps locate hidden infestations and ensures a more complete removal.

What equipment do you use to inspect oak trees?

We use professional optical equipment, including high-quality Swarovski binoculars, to inspect mature oak trees safely from the ground before climbing.

Can I remove one visible nest myself?

No. Even a single nest contains thousands of microscopic hairs that can become airborne if disturbed. Professional removal is strongly recommended.

Which areas do you cover?

ArborLife provides Oak Processionary Moth removal across Horley, Reigate, Redhill, Dorking, Leatherhead, Cobham, Guildford, Woking, Surrey and surrounding counties.