Q: We are curious to know the identity of a tree we saw in a park, surviving the Southwest climate that has leaves that look like a maple and a round spiky seed pod. Can you tell us?

COLUMBUS, Ohio -- A cool, moist spring has led to an increase in sycamore anthracnose and oak anthracnose, diseases affecting the foliage of sycamore and white oak trees. "The diseases appear to some ...