INDEX 
Ability of trees to resist injury from gases, 
170 
Accessories, Spraying, 194 
Ailanthus or Tree of Heaven, 66 
Alder Aphis, Woolly Maple and, 215 
American (or White) Elm, 50 
American Legion plants Memorial Trees, 
109 
American Plane, 34 
Ammoniacal Copper Carbonate, 179 
Formula, 179 
How to make, 180 
Appearance of, 180 
Ancient History, Trees in, 18 
Anthracnoses, 180 
Anticipating insect attacks, 225 
Aphids, Gall, 208 
Sap-sucking, 199 
Aphis, Box Elder, 200 
Gall, 210 
Gray, 217 
Norway Maple, 215 
Tulip Tree, 221 
Woolly Elm-bark, 207 
Woolly Maple and Alder, 215 
Apples, Cedar, 182 
Appraisal, Methods of shade tree, 232, 
233 
Appropriations for shade tree work, 228 
Arsenate of lead powder, 188 
Ash, Differentiating characters between 
Green and White, 30 
Green, 30, 57 
Leaves, 30 
Mountain, 64 
Principal insects attacking: Ash-bud 
gall-mite, 197; San Jos6 scale, 197 
White, 30, 57 _ 
Ash-bud Gall-mite, 197 
Ash-leaved Maple or Box Elder, 32,62 
Aspen, American, 38 
Large-toothed, 38 
Quaking, 38 
Borer, 219 
Associations, Memorial Tree, 117 
Atmospheric influences, Damage to shade 
trees from, 169 
Bagworm, 202, 211, 216, 218 
Bands, Tree, 195 
Bark Beetle, Hickory, 209 
Bark grafting by bridging, 160 
Injuries, 152 
Bark, Loosened, 155 
Treatment of torn, 152 
Barrel hand-pump for spraying, 192 
Basic value of shade tree varieties, 238 
Basswood, 40, 52 
Battle-ground Oak at Guilford Court 
House, 124 
Beech, American, 38, 64 
Characteristics, range, beauty and 
adaptability of, 106 
European, 40 
For roadside planting, 106 
Identifying characters of, 38 
Principal insects attacking: Gipsy 
moth, 198; Aphids, 199 
Beetle, Elm-leaf, 201 
Cottonwood, Poplar, and Willow-leaf, 
218 
Hickory Bark, 209 
Big-leaf Maple, 61 
Birch-borer, Bronze, 199 
Birch, Canoe, 40 
Grey, 40 
Identifying characters, 40 
Paper, 40 
Principal Insects attacking: bronze 
birch borer, 199; Gipsy moth, 199 
White, 40 
Black knot, Treatment of, 176 
Black Locust, 65 
Black Walnut for beauty and utility, 102 
For California highways, 103 
Bolting Limbs, 158 
Bolts, Tree, 158 
Bordeaux Mixture, 177 
Formula, 178 
How to make, 178 
Borer, Aspen, 219 
Bronze Birch, 199 
Cottonwood, 220 
Elm, 205 
Linden, 210 
Two-lined Oak and Chestnut, 216 
Sugar Maple, 212 
Borers, Work of, 187 
How to control, 187 
Boring Insects, Habits and damage of, 197 
How to remedy, 197 
Boston Common, Trees of, 125 
Box Elder or Ash-leaved Maple, 3 2 
Principal insects attacking, 200 
Branching, Pruning for proper, 141 
Bridge grafting, 160 
249 
