INDEX 
251 
Elm, American (or White), 34, 50 
Borer, 205 
Difference between American and 
English, 36 
English, 36, 51 
Huntington, 51 
Identifying characters, 36 
The Constitutional, 124 
Principal insects attacking: elm-leaf 
beetle, 201; brown-tail moth, 201; 
San Jose scale, 202; bagworm, 202; 
spiny elm caterpillar, 202; fall web- 
worm, 203; forest tent caterpillar, 
203; cankerworm, 204; white-marked 
Tussock moth, 204; large elm-sawfly, 
205; elm borer, 205; Leopard moth, 
206; twig girdler, 206; oyster-shell 
scale, 207; woolly Elm-bark aphis, 
207; European elm scale, 207; gall 
aphids, 208. 
Elm-bark aphis, Woolly, 207 
Elm-leaf beetle, 201 
Elms of New England, 25 
Enemies of shade trees, Insect, 149, 183 
English Elm, 36, 51 
Entomologists, State, 184 
Europe, Nut and fruit trees on roads of, 97 
European Beech, 40 
European Elm scale, 207 
European Linden, 53 
Excavation injury to street trees, 151 
Executive, Proper title for shade tree, 230 
False Plane Tree, 34 
Fall cankerworm, 216 
Fall web worm, 203, 218 
Fame for Trees, Hall of, 120 
Famous trees of District of Columbia, 122 
Fertilizer, Amount necessary, 133 
Soil requirements, 133 
Fiftieth Anniversary of Arbor Day 
planting, 113 
Filling for cavities, 161 
Financial returns from nut trees, 101 
Fine for damaging trees in Massachusetts, 
233 
Fines for injuring trees in Olean, N.Y., 234 
In Kansas City, 234 
In New York State, 234 
In Bathgate, N J., 234 
Fish-oil soap spray, How to use, 191 
Florida plants Roads of Remembrance, 
H9 
Foliage diseases, 177 
Forest tent caterpillar, 203, 211, 216, 218 
Formal pruning sometimes desirable, 43 
Formation by pruning, 140 
Formula for Bordeaux Mixture, 178 
Fruit groves near highways, Nut and, 96 
Fruiting bodies of fungus, 173 
Fumigation of nursery stock, 186 
Fungi, Life history of, 172 
Treatment of, 173 
Fungicides, 178,179 
Fungus brackets, 174 
Different types of growths, 172 
Gall Aphids, 208 
Gall Aphis, 210 
Poplar leaf-stem, 220 
Gall Insects, 215 
Mites and Hackberry, 208 
Gall-mite, Ash-bud, 197 
Galls, Oak, 217 
Gas injured trees, How to save, 168 
Gas leaks, How to detect, 167 
Gas, Trees susceptible to injury from, 170 
Gases, Damage to trees by illuminating, 
166 
Atmospheric, 170 
Injury from, 152 
General Sherman Tree, 120 
Ginkgo, 51 
Identifying characters, 38 
Gipsy moth, 198, 199, 209, 216 
Girdler, Twig, 206 
Gloomy Scale, 214 
Grafting, Bridge, 160 
Grant Elm, The, 124 
Grant Trees, General, 124 
Grant’s Tomb memorial planting, 113 
Gray aphis, Description of, 217 
Great Britain, Road of Remembrance 
Association of, 119 
“Great Tree Maker,” The, 112 
Green Ash, 57 
Green-striped Maple worm, 211 
Grove of Remembrance at Baltimore, 111 
Grove of States at Los Angeles, The, 111 
Growth of shade trees, Stimulating pro¬ 
per, 131 
Guards, Tree, 134 
Painting, 137 
Types of, 135 
Value of, 239 
Gum, Sweet, 56 
Principal insects attacking: forest tent 
caterpillar, 208 
Guying close to crotch, 159 
Hackberry, 66 
Characteristics of, 36 
Gall insects, 208 
Principal insects attacking: spiny elm 
caterpillar, 208; hackberry butterfly 
caterpillar, 208. 
Hall of Fame for Trees, The, 120 
Harding endorses Roads of Remem¬ 
brance, President, 116 
7 
