The quality for which the American elm
is most loved, and which hackberry also possesses, is form.
Five of the seven species are frequently used by wood warblers (Holmes and Robinson 1981, Graber and Graber 1983): black walnut (n = 10), bur oak (n = 5), northern red oak (n = 5), slippery elm (n = 5), and American elm
(n = 5).
Beavers consistently selected smaller stems in 15 of 18 woody species; however, beavers selected stems of eastern cottonwood, black willow, bald cypress, and American elm
>21 cm in diameter.
Chestnut blight (Cyphonectria parasitica) and Dutch elm disease (Ophiostoma ulmi), are two other well known invasive tree diseases that have devastated the American chestnut and the American elm
, effectively eliminating them as significant components of the deciduous forests of south eastern Canada.
In response, during the 1920s and 1930s the city engaged in an extensive program of tree trimming and removal, targeting the American elm
In addition, Dutch elm disease killed 90 percent of the nation's American elm
trees--a species the Indiana bat depended on to raise its young.
Unlike the American elm
, this tree is resistant to Dutch elm disease, which has devastated many elms in the United States.
Some new areas of flooring upstairs used up rare resources of English elm following the epidemic of 20 years ago, American elm
having to do for one remaining room.
9 0/9 9/0 American elm
(Ulmus americana) 7 0/7 7/0 Blak ash (Fraxinus nigra) 4 0/4 4/0 Red maple (Acer rubrum) 3 0/3 1/2 Shagbark hickory (Carya ovata) 3 3/0 3/0 Cottonwood (Populus deltoides) 1 0/1 0/1 Slippery elm (Ulmus rubra) 1 0/1 0/1 Unidentified 1 0/1 1/0 Total 69 4/65 64/5 Diameter Species (cm) (1) at breast height Green ash (Fraxinus pennsylvanica) 39 [+ or -] 1 (27) Silver maple (Acer saccharinum) 47 [+ or -] 11 (11) Unidentified maple (Acer sp.
An eradication campaign failed to check its spread into regions where the susceptible American elm
Murrah Federal Building, several hundred people sang under an American elm
that survived that blast.
There, he was asked by the primary contactor and National Park Service to do whatever he could to avoid damaging the root systems of the coveted American Elm
and Japanese Cherry trees as he pulled in 4-inch bore duct.
4) FRENCH DREAMS: Milling Road's new collection includes this 19th-century-style bed made of flormorado, a South American elm
Pawpaw and Lindera benzoin (spicebush) dominated the seedling and small sapling categories, while pawpaw, sugar maple and American elm
were the important large saplings (Table 2).
Other strains of Xylella fastidiosa have been discovered, and almost all of these can cause leaf scorching of woody perennials such as American elm
, maple, mulberry, or plum.