How has the emerald ash borer affected European ash supply?

The emerald ash borer (Agrilus planipennis) has devastated North American ash populations since its detection in 2002, killing hundreds of millions of trees. In Europe, the primary threat is ash dieback (Hymenoscyphus fraxineus), a fungal disease that has killed 60–90% of ash trees in some regions since the 2000s.

The emerald ash borer (Agrilus planipennis) has devastated North American ash populations since its detection in 2002, killing hundreds of millions of trees. In Europe, the primary threat is ash dieback (Hymenoscyphus fraxineus), a fungal disease that has killed 60–90% of ash trees in some regions since the 2000s. This has significantly reduced future supply of large-dimension European ash timber. Current market availability remains adequate from existing mature stock, but long-term supply is uncertain. Specifiers should consider this when designing with ash for projects with 50+ year lifespans.

Why this matters

This question relates to European Ash: Properties, Interior Applications & Specification, which covers the broader topic in detail. Understanding this specific aspect helps architects, builders, and timber dealers make informed specification decisions.

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→ European Ash: Properties, Interior Applications & Specification

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This answer is part of the PuurModulair Knowledge Base — comprehensive timber specification guidance for architects, builders, and dealers across the UK, EU, and Scandinavia.