European White Oak Trees

Asked August 8, 2017, 3:47 PM EDT

My European white Oak trees have large white spots on them, no acorns this year. Can you tell me if this is Anthraconose disease and if I should have a tree service use a fungacide, with Mancozeb? I have ArborScape coming in a few days to assess the problem.

Denver County Colorado

1 Response

Anthracnose in white oaks causes the leaves to develop irregular brown areas that may be cupped or distorted.

Where are the white spots? On the leaves? Branches or trunk? Without further information, it is difficult to give you an accurate answer.

If you would like to provide further details as well as photos of your trees in the landscape and the white spots on your tree, please feel free to email Gardening Help at A Master Gardener will answer your email and attempt to help you solve your mystery.