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Acer rubrum, the red maple, also known as swamp maple, water maple, or soft maple, is one of the most common and widespread deciduous trees of eastern and central North America. The U.S. Forest Service recognizes it as the most abundant native tree in eastern North America. [ 4 ]
Norway maple, red maple and sugar maple are the species most commonly affected. The trouble often starts after insect-induced defoliation, which weakens the trees and makes them more susceptible to secondary pathogens. Early signs of decline include small or scorched foliage, and premature fall colors on some of a tree's branches.
Shantung maple is grown as an ornamental plant in Europe and North America. [4] [5] A number of cultivars have been selected, including 'Akikaze Nishiki' with variegated leaves, 'Fire Dragon' with very bright autumn colour. [4] The cultivar 'Keithsform' (Norwegian Sunset) is a hybrid between Acer truncatum and Acer platanoides (Norway Maple). [8]
To get rid of the sooty mold we must remove or prevent the honeydew. To avoid the honeydew, the best thing is to prevent the insects in the first place.
Rhytisma acerinum is a plant pathogen that commonly affects sycamores and maples in late summer and autumn, causing tar spot.Tar spot does not usually have an adverse effect on the trees' long-term health. [1]
On mature trees, sugar maple bark is more shaggy, while Norway maple bark has small, often criss-crossing grooves. [ citation needed ] While the shape and angle of leaf lobes vary somewhat within all maple species, the leaf lobes of Norway maple tend to have a more triangular (acuminate) shape, in contrast to the more finely toothed lobes of ...