Avoid maple trees! Especially Red Maple

I have a question. My 2 horses are chewing the bark off of maple trees. Is this harmful? Or may it be some kind of deficiency?I have a question. My 2 horses are chewing the bark off of maple trees. Is this harmful? Or may it be some kind of deficiency?

Story originally posted by: Michael Lowder, DVM, MSUniv. of GA School of Veterinary Medicine

Dear Dr. Lowder,

I have a question. My 2 horses are chewing the bark off of maple trees. Is this harmful? Or may it be some kind of deficiency?

Thank you
Sherry Garrity

Sherry,

They should not be allowed to have access to the trees. Especially, the maple leaves. Leaves of red maple trees are especially toxic to horses.

Thanks,
Dr. Lowder