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White Oak Family Oak Wilt Symptoms

Mexican White Oak (AKA Monterrey Oak) Symptoms

Quercus polymorpha

Often called the Monterrey Oak, I strongly dislike this term as it has a connotation of uniqueness of genetics and reclusive location. This tree will cross-pollinate and graft with dang near every oak – hence polymorpha (i.e. many forms).

It is not resistant to oak wilt!

It readily grafts with Live Oaks, etc. that have oak wilt. There will be massive losses of this over-planted species and a secondary epidemic outbreak will occur in those locations where this tree was planted in heavy numbers – almost to the point of replacing the monoculture of Live Oaks with a monoculture of this species.

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