Leaf Description: Alternate, simple. The American elm leaf is ovate to oblong, 3 to 5 inches long, 1 to 3 inches wide, margin coarsely and sharply doubly serrate, base conspicuously inequilateral, upper surface green and glabrous or slightly scabrous, paler and downy underneath.
Bark Description: American elm bark has ridges that criss cross, showing different layers of bark color ,dark gray with deep ridges
Twig Description: reddish brown,slender
Flowering: Monoecious; small, in drooping clusters of 3 to 5.
European elm scale, Gossyparia spuria, is a soft scale insect that attacks a variety of elm trees as well as hackberry species. Heavy infestations may kill weakened trees and cause branch dieback in healthy trees. More…