Pine Continued 



Pinus, 181, 564, 837 



pitch, Pinus rigida, 150, 770 



pond, Pinus rigida var. serotina, 



122, 129, 837 

 ponderosa 



in Southwest. C. Otto Lindh, 

 347-352 



Pinus ponderosa, 71, 76, 144, 

 147, 171, 319, 357, 423, 

 444-445, 563, 616, 800-801 



See also Pine, western yellow. 

 piny on (pinyon), Pinus edulis, 



250 



red, Pinus resinosa, 58, 318, 771 

 Rocky Mountain ponderosa, 



Pinus ponderosa var. scopulo- 



rum, 152 

 Rocky Mountain white, Pinus 



ftexilis, 145, 467 

 sand, Pinus clausa, 129 

 sawflies, control, 473 

 Scotch, Pinus sylvestris, 71, 76, 



147, 148, 207, 820 

 shore, Pinus contorta, 85 

 shortleaf 



Pinus echinata, 150, 151, 164, 

 443, 519-522, 770-771 



See also Pine, southern yellow, 

 slash, Pinus caribaea, 151, 164, 



179, 521, 770 

 yellow, a standard lumber-trade 



name for seven species of 



southern pines, 650 

 yellow (shortleaf pine), Pinus 



echinata, 287, 617 

 spruce, Pinus glabra, 111 

 sugar, Pinus lambertiana, 352, 



454, 616, 800 



Swiss stone, Pinus cembra, 133 

 tip moth, damage, 217 

 Torrey, Pinus torreyana, 20 

 Virginia, Pinus virginiana, 111 

 western white 



Pinus monticola, 144, 170, 

 443, 454, 616, 800 



See also Pine, Idaho white. 

 western yellow (ponderosa pine), 



Pinus ponderosa, 16 

 white 



blister rust. See Blister rust, 

 white pine. 



(eastern white pine), Pinus 

 strobus, 146, 150, 151, 164, 

 178, 312-313, 467, 687, 703 



weevil, damage to white pines, 

 98 



weevil, resistance to, 150 

 whitebark, Pinus albicaulis, 448 

 Pines 



breeding, 470 



breeding in U. S. J. W. Duf- 



field and Palmer Stockwell, 



147-153 



extraction products, 640, 641 

 management in Minnesota, 311- 



319 



Index 



Pines Continued 



naval stores, high-yielding, re- 

 search, 294 

 progeny testing, 149 

 resistant to 

 blister rust, 467 

 resin midge, 467-468 

 seeding costs, 144-145 

 southern 



advantages, 211-212 

 thinning, 220, 295-296 

 vegetative propagation, 149 

 Pinhole borers, damage, 409 

 Pinyon 



Mexican, Pinus cembroides, 343 

 nut, value, 345 

 one-needle (singleleaf pinyon), 



Pinus monophylla, 343 

 Pinus edulis, 343, 802 

 seed, dissemination, 346 

 singleleaf 



Pinus monophylla, 802 

 See also Pinyon, one-needle. 

 See also Pine, Colorado pinyon; 



Pine, pinyon. 

 Pinyon-Juniper in Southwest. 



Quincy Randies, 342-347 

 Pistache, Chinese, Pistacia chinen- 



sis, 80 



Pitch pockets in wood, 619 

 Pittman -Robertson program, 589 

 Plains 



shade trees for. Ernest Wright 



and T. W. Bretz, 65-72 

 windbreaks, 191-198 

 Plains States 

 forest types, 109-110 

 trees for, recommendations, 845- 



846 

 PLAIR, T. B.: Forests and Soils, 



114-119 

 Planetree 



American. See Sycamore, Amer- 

 ican 

 London, XPinus aceri folia, 55, 



70, 75, 79, 448, 832 

 Oriental, Pinus orientalis, 55 

 Plant succession, 105-106 

 Plantations 

 care, 21, 90 



establishment, 136, 137 

 profits, 209 

 Planters, mechanical, 197, 208, 



215, 216, 226 

 Planting 



by amateur tree breeders, 159 

 Christmas trees, recommenda- 

 tions, 251-253 

 costs, 143-144, 215-226 

 factors, 85-86 

 Federal-State aid, 20 

 fertilizer needs, 90 

 home grounds, pointers. T. E. 



Maki, 85-90 

 pruning needs, 90 

 schedule, 89 

 season, regional, 86 



935 



Planting Continued 



seedlings, pointers, 225-226 



seeds, 127-172 



shelterbelts, 21 



site, 87, 223 



space requirements, 86-87 



stock selection, 20, 89, 206-207, 

 218, 223-225, 466 



tools, hand, 208, 215 



See also Seeding. 

 Plants 



effect on soil and water, 604-605 



forest, utilization, 177 

 Plastics, production, 645 

 Plow-tractor for fire lines, 528-529 

 Plows, types for fire lines, 528 

 Plum 



American, Prunus americana, 

 562, 848 



Chickasaw, Prunus angustifolia, 

 848 



Prunus, 130 

 Plywood- 

 attachment method, 635 



outdoor, 635, 649 



panel covers, 634-635 



requirements, 1950-55, 739 



strength determination, 649 



susceptibility to decay, 631 



use and requirements, 739 

 Poinciana, royal (flambuoyant- 



tree), Delonix regia, 64 

 Poisoning 



rodents, 138 



undesirable growth, 220 

 Pole blight, damage, 443 

 Poles 



from farm woodlands, 178 



preservation, 623 



production, 732-733 



requirements, 1950-55, 732 



specifications, 229 



strength, 649 

 Pollen- 

 application to flowers, 158-159 



collection, 159 



functions, 8, 9 

 Pollination 



controlled, 148, 149 



types, 149 



See also Cross-pollination ; Self- 

 pollination. 



Pollution, stream, by lignin, 644 

 Pondcypress, Taxodium ascendens, 



768 

 Poplar 



balsam, Populus tacamahaca, 790 



bolleana, Populus alba var. bol- 

 leana, 57 



Carolina, XPopulus eugenei, 66, 

 79-80, 830 



lanceleaj (lanceleaf cotton- 

 wood), Populus acuminata, 75 



Lombardy, Populus nigra var. 

 italica, 67, 75, 830 



rtarrowleaf (narrowleaf cotton- 

 wood ) , Populus angustifolia, 

 75 



