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 webworm, 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, 



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, 



119 

 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, 1 19 

 "Great Tree Maker," The, 112 

 Green Ash, 57 



Green-striped Maple worm, 21 1 

 Grove of Remembrance at Baltimore, 1 1 1 

 Grove of States at Los Angeles, The, 1 1 1 

 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 



