Journal of Arboriculture Index (The Letter L)

• Laakman, S.R. 6:212
• Labeling and restricted pesticides, H.B. Pratt 1:18
• labor negotiations 3:56
• labor recruitment 16:1, 322
• labor relations 1:40; 3:65; 7:184; 10:50
• Lacasse, N.L., Municipal/utility synergy 18:37
• lacewings 16:53; 20:241
• lacing balls 16:66
• Lacy, G.H. 8:185
• lady beetles 16:53; 20:241
• ladybugs 9:262
• Laemmlen, F.F. 7:113
• Laking, L., Tree selection 7:80
• Lambe, R.C. 5:261; 6:203; 8:123, 185
• Lambur, M.T. 9:199
• lamps and lighting 1:207
• land management plans 9:49
• land use-demographic analysis 18:331
• Landfill gas injurious effects and control, F.B. Flower 7:43
• landfills 3:221; 4:206, 264
• Landscape design and maintenance, B.E. Schepers 5:45
• Landscape design, W.R. Nelson, Jr. 1:121
• Landscape IPM, D.G. Nielsen 16:253
• Landscape ornamentals entomology, C.S. Koehler 13:78
• landscape waste 17:136
• Landscape waste, J.S. Darling 15:198
• Landscape weed control measures, B.L. Appleton 16:264
• landscape design 5:62, 142, 255; 7:50, 140; 15:7
• landscape fabrics 16:264
• landscape horticulture 4:93
• landscape management 10:161
• landscape plans 20:59
• landscape preferences 10:224
• landscape valuation 4:19
• Landscaping with fruit trees, R. Rothenberger 1:159
• landscaping 3:9, 59; 9:47
• landscaping, container trees 13:294
• landscaping, tree use 11:121
• Lanier, G.N. 14:52
• Lanier, G.N., Fungicides for Dutch elm disease 13:189
• Lanier, G.N., Insecticides for elm bark beetle control 10:265
• Lanier, G.N., Therapy for Dutch elm disease 14:229
• Lanier, G.N., Trap trees for control of DED 15:105
• Lapping, M.B. 3:140
• Larew, H.G. 16:12
• Larsen, A.O. 2:106; 7:6
• Larsen, F.E. 9:252
• Larson, M.M. 6:73
• Larvae of pests and beneficials, M.J. Raupp 16:49
• lateral trimming 14:74
• Latin names of pathogens, W.A. Sinclair 13:274
• Laub, L. 5:273
• Lauersdorf, J. 14:264
• laundering clothes 16:41
• Laut, J.G., Dutch elm disease control in Colorado 6:274
• Lawrence, W.C. 1:48
• laws and litigation, tree 8:7; 14:20; 20:341
• Lawton, B.P. 17:166
• Lazarowych, P. 15:255
• Le Blanc, G.A., Establishing a local arborist association 16:221
• Leach, C.B., Evaluating construction plans for impacts on trees 20:55
• leadership 14:7
• Leaf nitrogen correlated with walnut anthracnose resistance, D. Neely 12:312
• Leaf removal on transplanted sabal palms, T.K. Broschat 17:32
• Leaf removal, tying and overhead irrigation on transplanted palms, T.K. Broschat 20:210
• leaf and shoot production 11:149
• leaf arrangement 10:313
• leaf beetle, elm 14:61; 16:53
• leaf beetles 20:1
• leaf coloration 8:157
• leaf diseases 7:169; 8:229
• leaf diseases, control 5:160
• leaf miner, basswood 15:253
• leaf miner, birch 16:12
• leaf miners 2:203; 7:226
• leaf morphology 8:76
• leaf nitrogen 17:59
• leaf potassium 17:61
• leaf scorch 12:38; 16:305; 18:57; 20:18
• leaf scorch, elm 11:54
• leaf senescence 16:304
• leaf shape 16:245
• leaf temperature 10:313; 13:58
• leaf types 16:247
• leaf:root ratios 18:141
• leafhoppers 2:108; 7:228
• Leafspot diseases, F.W. Holmes 14:107
• Learey, F. 20:170, 323
• Lebeau, Y., Right-of-way maintenance 11:152
• Leben, C. 5:20; 12:100
• lecanium scale insect 11:182
• Leddy, P. 17:93
• Lederer, R.F. 10:91
• Lederer, R.F., Green survival: taking the story to America 4:89
• Lee, C.I. 1:74
• Lee, I-M 20:176
• Lee, T. 10:264
• Lee, T., Tree care profession in Canada 19:81
• Legal controls for undesirable vegetation, M. Widrlechner 7:145
• Legal protection for trees in Britain and Ireland, D.P. O'Callaghan 17:306
• legal consultation, trees 7:106
• legal issues, trees 6:77; 7:218; 15:60, 166
• legislation, harassment 15:303
• legislation, pesticide 1:11, 65, 227; 11:76, 80; 12:309
• legislation, tree 4:123, 202, 213, 240; 5:21, 155; 15:58, 237; 16:74; 17:306; 20:109
• legislation, tree, China 18:151
• Leiser, A.T. 1:154
• Leonard, O.A. 1:53
• Leone, I.A. 4:264; 7:43; 12:1
• Leone, I.A., Damage to woody species by anaerobic landfill gases 3:221
• Leopold, D.J., Chinese and Siberian elms 6:175
• Les Floriales International de Montreal, M. Beauchamp 6:26
• Lessons from Hurricane David, L.M. Anderson 7:215
• Let's not give up on pesticides, K.D. Meyer 11:172
• lethal yellowing of palms 1:45; 2:8, 73; 4:204; 6:226; 12:84
• Leucostoma canker 16:111
• Levels in an IPM program, P.D. Marsan 17:117
• Lewis, C.E. 4:139; 6:79; 8:224
• Lewis, C.E., Have you really looked at trees? 5:49
• Lewis, C.E., Our American heritage_trees 2:181
• Lewis, F.B. 7:233
• Lewis, R., Jr. 13:169
• Lewis, R., Jr. Injection treatments for oak wilt in live oaks 11:125
• Lewis, R., Jr., Live oak decline in Texas 5:241
• Lewis, T. 5:157
• Lewis, V.R. 10:142
• Liabilities and duties associated with municipal trees, V. Merullo 14:129
• Liability from hazardous trees, L.M. Anderson 12:189
• liability, arborist 8:274; 14:20, 70; 15:219
• liability, association 12:159
• liability, insurance 11:356
• liability, municipal 16:62; 20:111
• liability, pruning 11:15
• liability, tree condition 13:285; 15:245
• liberty trees 2:182
• library use 16:105
• licensing, arborist 3:139, 145; 11:48, 143, 147, 327; 16:20; 17:306
• Lichter, J.M. 19:351
• Lichter, J.M., Control of mistletoe on landscape trees 17:127
• Lichter, J.M., Surface treatments for the prevention of soil compaction during construction 20:205
• Lichter, J.M., Volume excavation and core sampling techniques for measuring soil bulk density 20:160
• life span, tree 9:201
• light effect on plants 1:207
• light intensity 4:76, 116; 9:266
• light sources 1:181, 231, 237; 3:34, 70, 76; 4:132
• Lighting, its effect on the landscape, H.M. Cathey 1:181
• Lightning and trees, E.W. De Rosa 9:51
• Lightning and trees, G.D. Freier 3:131
• Lightning protection for trees, R.E. Cripe 5:145
• lightning protection 12:49
• Lignasan 2:74, 105; 3:108; 10:276; 11:125
• lilac powdery mildew 20:227
• lilac, tree 20:310
• Lilly, S., Arborist certification in Ohio 15:165
• lime 2:198
• Limitations of chemical injection to control Dutch elm disease, R.J. Campana 3:127
• linden aphids 20:278
• linden diseases 1:43
• linden mites 5:11
• linden trunk decay 6:258
• linden uses 7:224
• linden, root regeneration 12:165
• Linderman, R.G. 4:246
• Lindhult, M., Microcomputer tree management 13:299
• Lindsey, P.A. 17:28, 333; 20:205
• Lindsey, P.A., Soil volumes needed for street and container trees 17:141
• Line clearance and forestry committee, P.E. Spangler 14:276
• line clearing 2:85, 101; 4:280; 5:42, 89, 91, 113, 183, 191; 6:13, 93; 7:135, 329; 10:117, 198, 205, 209; 11:116; 13:196; 16:17, 319, 327; 17:107, 171, 318, 325; 18:23, 209; 20:38
• line siting 2:117
• Linit, M.J. 8:1; 11:225
• Linking arborists, foresters and citizens, G. Moll 12:69
• Linzon, S.N. 11:13
• Liquidambar checklist 10:309
• Liquidambar styraciflua `Gum Ball'' 1:115
• Liriodendron checklist 10:309
• Liriodendron problems 12:146
• Liscinsky, S.A. 17:38; 18:316
• Lister, C.K. 3:145
• lists of recommended trees 1:212
• litigation, tree 8:27; 14:129; 17:113
• litter, fruit 12:293
• Little, S. 5:97
• Littrell, R.L. 6:253, 294
• Litzow, M. 10:169
• Litzow, M., Establishment rates for bare-root grades of trees 8:264
• Litzow, M., Influence of mulch on growth of green ash 9:7
• Litzow, M., Materials for potential use in sunscald prevention 9:35
• Live oak decline in Texas, R. Lewis 5:241
• live oak 5:261; 20:79
• live oak, wilt 12:213
• livestock feed 2:16
• loans, commercial 13:108, 138
• Lobel, D.F., Managing urban forests using forestry concepts 9:75
• local arborists associations 16:221
• Location factor and replacement value, E. Rey-Lescure 11:132
• location and tree values 1:93
• location of trees 8:260; 18:189
• locust tree diseases 1:43, 46
• locust, black 13:105
• Loeb, R.E., Arboreal change in Central Park, New York City 19:238
• Lofgren, D.E. 2:205; 5:235; 13:46
• log utilization 2:36
• London plane 15:99; 17:303
• London plane cultivars 18:163
• London plane, canker stain 14:18
• London plane, salt damage 11:14
• Long, C.E. 13:105; 18:49; 20:282
• Long, D.L. 9:44
• Long, D.L., Time management 9:54
• Long, M.E. 3:80
• Longevity of London plane and Norway maple as street trees N. Polanin 17:303
• longevity of trees 1:212; 9:202; 17:303
• Longwood Gardens 15:253
• Lonsdale, D. 11:322
• Loomis, R.C. 2:157
• Lough, William B., Contracting for urban tree maintenance 17:16
• Louviere, J.L. 15:247
• Love, H.G. 9:54
• Love, H.G., Job analysis: a tool for MBO 9:44
• low light environment 19:339
• low temperature injury 20:28
• lowering devices 15:86
• Luckham, W.R., Financial ratio analysis 8:296
• Luckham, W.R., Returns on investments 8:302
• Luken, J.O., Growth response of Acer saccharinum to flurprimidol injection 18:69
• Luken, J.O., Managing power line corridor vegetation 17:318
• Luken, J.O., Target/nontarget effects of herbicides on ROW vegetation 19:299
• Lumis, G.P. 5:25; 8:247; 9:117; 12:165; 16:306; 18:115
• Lumis, G.P., Salt damage to roadside plants 1:14
• Lumis, G.P., Stimulating root regeneration of red oak with auxin sprays 8:325
• Lumis, G.P., Transplanting bare root conifers 6:261
• Luretape 14:175
• Lutz, A. 15:176
• Lymantria dispar (see gypsy moth)
• Lyme disease 16:307
• Lynch, D.L., Developing administrative skills 11:50
• Lynch, J.A. 8:167
• Lynch, K.D. 13:139
• Lyon, T.J., Maryland's roadside tree regulations and their implementation 4:142