Houser, J.S. 1917 Scale control on high trees.. Ohio State Horticultural Society, 50th Annual Report 41-43.
Notes: Gossyparia spuria mentioned as damaging to elm trees.
Houser, J.S. 1917 Scale control on high trees.. Ohio State Horticultural Society, 50th Annual Report 41-43.
Notes: Gossyparia spuria mentioned as damaging to elm trees.