254 



INDEX 



Principal insects attack: White-marked 

 Tussock moth, 216; fall cankerworm, 

 216; carpenter worm, 216; maple and 

 oak twig pruner, 216; Leopard moth, 

 2 1 6; 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 Club, 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 

 Snade 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, 6 1 

 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 Jos 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, 1 8 



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, 



134 



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 



