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Wildlife, nature & conservation

Passionate about wildlife, nature and conservation? Join our community to share sightings, discuss environmental issues, and swap tips for protecting the planet and its creatures.

Box Hedge Moth

26 replies

TurquoiseDreamCatcher · 09/05/2026 16:21

We have two box hedges outside our house, we inherited them with the house. About a week ago, I noticed that one looked dead which I thought was odd as it seemed to have died almost over night.

Then on the school run, I noticed that someone else’s hedge looked the same. Woke up this morning and our second hedge has been decimated!

A bit of research shows it’s the Box Hedge Moth. On closer inspection, we found loads of caterpillars around the bottom of the hedge. No doubt on their way to destroy another hedge. AI suggests killing them, I can’t bring myself to do that!

Has anyone else had these little buggers?

https://www.rhs.org.uk/biodiversity/box-tree-caterpillar

Box tree caterpillar (Cydalima perspectalis)

Box Tree Caterpillar | RHS Advice

Learn how to manage box tree caterpillar infestations and prevent severe defoliation.

https://www.rhs.org.uk/biodiversity/box-tree-caterpillar

OP posts:
Hedgesgalore · 10/05/2026 15:22

DeathBanana · 09/05/2026 20:14

This is the fella I follow who tells you when to use xentari. It’s literally within a specific few days periodically, when the moths are laying eggs

www.instagram.com/kwekerijgoossens?igsh=eHZvZzEwdGJvbXNn

That's the same guy I follow.

I followed his advice last year, this year I thought I'd avoided the moths but saw the startings of damage so sprayed last week. Looked him up on insta for more advice and he'd posted to repeat every two weeks.

My main problem is he stipulates set dates but says spray on dry leaves with no rain for 6 hours, I live in Wales the September and October spray is somewhat iffy with my weather 🫤

If I had a random box hedge (not to create formality) I'd change out but I have 10 box balls (five are huge) I'd lose a big part of my winter structure so I've decided its a hill worth drying on for my garden.

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