254 
INDEX 
Principal insects attack: White-marked 
Tussock moth, 216; fall cankerworm, 
216; carpenter worm, 216; maple and 
oak twig pruner, 216; Leopard moth, 
216; Two-lined oak and chestnut 
borer, 216; gray aphis, 217; pubes¬ 
cent oak kermes, 217; obscure scale, 
217; oak galls, 217; 
Red, 28, 45 
Scarlet, 28, 47 
Spanish, 28 
Swamp White, 28 
Valley, 49 
Water, 28 
White, 28,47 
Willow, 28, 48 
Oak Galls, 217 
Oak group, black, 28 
Oak kermes, Pubescent, 217 
Oak twig pruner, Maple and, 213 
Oaks, Identifying characters of fruits and 
leaves, 28 
For roadside planting, 92 
Obscure scale, 217 
Officials, Local tree, 184 
Oil sprays, Miscible, 190 
Ordinances, Shade tree, 242 
Oriental Plane, 34, 55 
Ottawa Tree CJub, 117 
Overhead wires, 150 
Oyster-shell scale, 207, 210, 211 213, 220 
Palmetto, 58 
Parasites, 172 
Parker plan of shade tree valuation, 237 
Pecan, 64 
Production figures, 102 
For roadside planting, 101 
Range of growth, 101 
To replace citrus fruits, 100 
Pecan trees pay rent, 99 
Pepper tree, 67 
Penalties for tree damage, 233 
Pennsylvania shade tree law, 241 
Philadelphia’s Memorial Trees, ill 
Pin Oak, 46 
Plane, London, 54 
Plane, Oriental, 55 
Plane tree, 34 
Plant-bug, Box Elder, 200 
Planting areas, Map showing, 87 
Planting by two-row type, 68 
Broad streets, 74 
Country roads, 73 
Highway, 115 
Memorial Tree, 108 
Russo-American Oak, 121 
Home grounds, 23 
Narrow streets, 74 
Planting Preparations for, 76 
Shade trees, 41 
Weather, 82 
Points: choice of variety, 41; adapta¬ 
bility to location, 41; hardiness, 41; 
rapidity of growth, 41; proper culti¬ 
vation, 42; shade-giving qualities, 42; 
physical form, 42; replacement, 43; 
clean habits, 43; beauty, 43 
Planting table. Tree, 88 
Poisoned contact sprays, 191 
Poisons, Stomach, 188 
Formula for, 188 
Pole pruner, 148 
Poplar Borer, Mottled Willow and, 219 
Poplar, Carolina, 38, 61 
Leaf-stem gall aphis, 220 
Lombardy, 36, 62 
Principal insects which attack: 
cottonwood, poplar and willow-leaf 
beetle 218; bagworm, 218; spiny elm 
caterpillar, 218; large elm sawfly, 212; 
brown-tail moth, 218; forest tent cater¬ 
pillar, 218; White-marked Tussock 
moth, 218; fall webworm, 218; cotton¬ 
wood dagger moth, 218; San Jos6 scale, 
219; aspen borer, 219; bronze birch 
borer, 219; mottled willow and poplar 
borer, 219; cottonwood borer, 220; 
carpenter worm, 220; twig girdler, 220; 
Oyster-shell scale, 220; poplar leaf- 
stem gall aphis, 220 
Poplars, Distinctive characteristics, 36 
Posilippo, 18 
Potted type of street planting, 73 
Powder, Arsenate of lead, 188 
Powdery mildew, How to control, 181 
Power sprayers, 193 
Practical uses of tree labels, 127 
Preparations for planting, 76 
Preventing abuse of city street trees, 
!34 
Prevention of fungous growths, 174 
Profit in shade tree planting, 232 
Protecting street trees from injury, 134 
Protection, Local regulations for shade 
tree, 245 
From freezing, 154 
Protective Coatings, 145 
Protects trees, Massachusetts law, 233 
Prune, When to, 140, 147 
Pruner, Maple and oak twig, 213 
Pruner, Pole, 148 
Pruning and trimming, Distinction be¬ 
tween, 138 
Pruning, Annual, 140 
Early, 141 
Chisel, 148 
Laws, 148 
