Tar spot is caused by a fungal infection. In spring, spores are released from the fungus. They become airborne in the wind, ...

Norway maple is an invasive tree species, while sugar and black maples are native tree species ... They also have pubescence or hairiness on the underside of the leaves. Norway maple has hairs in the ...

A Norway maple tree in a yard. ... There's really nothing more autumnal than maple trees. They have the most pretty leaves and their ability to change color as the calendar flips past is unlike ...

Yes, that maple. The original species of Norway maple has green leaves, but its purple-leafed cultivar ‘Crimson King’ was so popular around the end of the 20th century that many people assumed ...

The Norway maple (Acer platanoides; l’Érable de Norvège) is a Eurasian deciduous tree that was commonly planted when it was first introduced to North America as an ornamental.It has been naturalized ...

Maple trees are also suffering from the so-called "tar spot" disease, which causes dark spots the size of quarters to appear on the leaves of affected trees and primarily affects Norway maples.