orangehoof's picture

Diseased young oak?

Observed: 18th September 2012 By: orangehooforangehoof’s reputation in Plantsorangehoof’s reputation in Plantsorangehoof’s reputation in Plants
IMGP0143 (2)
Description:

Leaves at ends of branches, where new growth, mildew-y, curling and turning brown at edges. Many young oak trees in this area similarly affected.

Identifications
Species interactions

No interactions present.

Species with which Pedunculate Oak (Quercus robur) interacts

Comments

orangehoof's picture

Thanks for ID. Any idea

Thanks for ID. Any idea what's causing the disease?

lavateraguy's picture

Google tells me

that is is likely to be Erysiphe alphitoides. It's not the only mildew of oaks, but it is the commonest, and does primarily affect the later flushes of leaves.

orangehoof's picture

Thank you!

Thank you!