Minor pest to
Acer macrophyllum (Oregon Maple)
Alnus incana (Grey Alder)
Betula pendula (Silver Birch)
Carya illinoinensis (Pecans)
Carya ovata (Shagbark Hickory)
Corylus avellana (Hazelnuts)
Juglans nigra (Black Walnut)
Populus tremuloides (American Aspen - Poplar)
Pyrus pyrifolia (Sand Pear)
Quercus garryana (Oregon White Oak)
Quercus rubra (Red Oak)
Salix alba (White Willow)
Sorbus aucuparia (Mountain Ash)
Tilia americana (American Basswood)
Ulmus americana (American Elm)