Journal of Arboriculture Index (The Letter O)

• O'Brien, D.J. 18:307
• O'Brien, P.R., Performance standards for municipal tree maintenance 18:307
• O'Brien, P.R., Use of municipal tree maintenance standards 18:273
• O'Callaghan, D.P., Legal protection for trees in Britain and Ireland 17:306
• O'Connor, W.R., Transmission ROW management 9:48
• O'Connor, W.R., Tree worker safety 15:17
• O'Leary, J.T. 9:198
• Oak chlorosis and mulch, E.B. Himelick 16:275
• Oak decline complex, W.D. Thomas 10:170
• Oak decline in Austria and Europe, C. Tomiczek 19:71
• Oak pathology_using leaf symptoms to diagnose recondite maladies, E.P. Van Arsdel 4:22
• Oak provenance research, F.S. Santamour 6:156
• Oak tree hazard evaluation, G.W. Hickman 15:177
• Oak wilt in live oak, D.N. Appel 12:213
• Oak wilt in Texas, D.N. Appel 13:169
• oak bark beetles 2:61
• oak characteristics 17:106
• oak chlorosis 10:122, 246
• oak cultivars for the South 18:333
• oak decline 12:155; 19:209
• oak diseases 1:43; 5:241
• oak diseases and pests 4:72, 228
• oak ectomycorrhizae 18:266
• oak injection 15:153
• oak insects 5:243
• oak leaf blister 5:178
• oak leaf injury 2:73
• oak leaf scorch 18:59
• oak leaf spot 5:177; 15:162
• oak lecanium scale 11:182
• oak mortality 2:228; 5:39, 165
• oak pit scales 10:262
• oak propagation 3:208
• oak red mites 5:11
• oak roots 15:129
• oak selection 7:157
• oak susceptibility to oak wilt 20:79
• oak wilt 1:146; 2:61; 5:241; 6:158; 8:288; 11:125, 323; 15:255; 18:221; 19:320; 20:79, 202, 250
• oak wilt spread 17:192
• oak, allelopathy 14:281
• oak, scarlett 20:310
• oak, white, checklist 13:203
• Oakland's urban forest 18:329
• Oakland, CA trees 19:313
• Oakland-Berkeley Hill fire: lessons for the arborist, P. Svihra 18:257
• Oaks in Texas, B.J. Simpson 12:302
• oakworm 10:142
• Oates, J.T., Municipal arboriculture 1:148
• Oatman, J.L., Computerized tree trimming 7:24
• Obadal, A.J. 4:6
• Odell, T.M. 3:113
• Odoi, N. 3:32
• office landscaping 4:74
• office management 1:119
• Ohio urban forestry 14:48
• Ohr, H. 16:7
• oil phytotoxicity 14:102
• oil spill 3:180
• oil sprays 14:220; 16:77; 17:208
• oil, horticultural 9:53; 13:121
• oil, summer 15:257
• oils as insecticides 6:169
• Olenik, C.J., Power of selectivity to power line ROW 3:173
• Olienyk, D.L., Network between utility and municipal forestry 14:265
• Oligitrophus betheli 1:207
• Oligonychus ununguis 1:206
• Olinger, G.A., Business continuity planning 10:92
• olive, fruit prevention 8:94
• Oliveria, F.L. 5:241
• Olkowski, H. 1:167; 4:241; 5:161, 273
• Olkowski, W. 5:161
• Olkowski, W., Integrated pest control programs 1:167
• Olkowski, W., Natural enemies of tree pest insects 5:273
• Olkowski, W., Urban integrated pest management 4:241
• Ontario Hydro as a potential user of TGRs, G.P. Aaron 17:103
• Ontario Hydro Line Clearance, W.B. Cormack 17:171
• Ontario trees 8:189
• Ontario trees_indoor and out, P.J. Tucker 4:261
• Ooencyrtus kuvanae 9:32
• Open spaces: quantity or quality, E. Rey-Lescure 5:32
• open burning 3:222
• open space analysis 5:75; 9:199
• Opgenorth, D.C., Transmission of C. ulmi on pruning saws 9:196
• Ophiostoma picea 19:320
• Ophiostoma ulmi 19:7
• Optimum stocking of trees, N.A. Richards 18:64
• orangestriped oakworm 17:298, 332
• Orans, M. 11:115
• Ordinance control of street trees, P.A. Barker 1:212
• ordinance, Texas 16:62
• ordinances 1:212; 2:220; 3:9, 140, 191; 4:203; 5:181; 6:186; 7:149; 8:35, 81, 271; 9:128; 10:231; 12:177; 14:92; 15:57
• Oregon trees 15:135
• organizational behavior 14:9
• Origin of frost cracks, H. Kubler 13:93
• Ornamental landscape as an ecosystem, D.A. Hermes 10:303
• Orr, J.W. 9:137
• Orthene 18:94
• Orton, D.A. 1:90
• Orton, E.R., Jr. 5:161
• OSHA 1:153, 230; 3:6, 55, 145; 4:6; 11:356; 15:34
• OSHA requirements 2:33
• osmocote 3:208
• Ossenbruggen, H.S. 12:104
• Ossenbruggen, H.S., Tree energy systems 15:53
• OSTC 4:261
• Osterbauer, N.K. 19:320
• Osterbauer, N.K., Propiconazole as a treatment for oak wilt 20:202
• Osterbauer, N.K., Propiconazole as a treatment of oak wilt in Quercus rubra and Q, ellipsoidalis 18:221
• Otta, J.D. 6:41
• Ottman, K 20:231
• Ouimet, D.M. 20:94
• Our American heritage_trees, C.E. Lewis 2:181
• Our part in the environmental movement, H. Pirk 17:1
• outages, tree related 14:134
• outdoor lighting 3:34
• over-head wires 18:307
• Overland spread of the oak wilt fungus, J. Juzwik 11:323
• overwintering techniques 10:255; 12:164
• Owen, N.P., Plastic tree wrap for borer control on dogwood 17:29
• Owen, W.L., Pursuit of excellence 14:1
• oxadiazon 2:234
• oxidant pollution 5:157
• oxygen diffusion in soil 16:123; 19:209
• oxytetracycline injection 2:6, 73, 112; 11:54, 255
• Ozone tolerance of eastern white pine, J. Eberhardt 14:185
• ozone 2:1, 118; 4:107; 6:20, 29, 130; 7:99; 10:289; 13:71, 156; 14:61, 153; 16:34
• ozone episodes, New Jersey 14:188
• ozone injury 18:249
• ozone injury to pine 8:186