14 DEPARTMENT OF AGRICULTURE BULS. 526-550. 



Bulletin No. Page. 



Persimmon, host of Mediterranean fruit fly 536 24, 36 



Pheidole megacephala, enemy of Mediterranean fruit fly 536 77 



Phleum alpinum, description, habits, and forage value 545-j eg rq 



Phyllosticta solitaria, cause of apple blotch, description and life his- 

 tory . 534 3-8 



Phyllotreta armoraciae. See Flea-beetle, horse-radish. 



Pickling, lesson outlines for first-year, and correlative studies 540 15, 16, 17 



Pine grass — 



description, habits, and forage value 545-1 eg en 



marsh, description, habits, and forage value 545< rg J 



Pissodes strobi, injury to spruce, note 544 27 



Planting board, description and use in tree planting 527 26-27 



Plants, grass-like, on ranges, sedges, rushes, etc 545 31-37 



Plowing, records and estimates, cooperative studies in North Dakota. 529 6 

 Plums- 

 Brazilian, infestation with Mediterranean fruit fly 536 24, 36 



Natal, host of Mediterranean fruit fly 536 24, 48 



f 22-23 



Poa sandbergii, description, habits, and forage value 545< gg go 



Polemonium pulcherrimwn, description, habits, and forage value .. . 545< rg nA 



Pollen, mango, characteristics and artificial culture 542 9-13 



Pollination, mango, bulletin by Wilson Popenoe 541 1-20 



Polychrosis viteana. See Grape-berry moth. 



f 41-42 



Polygonum phytolaccaefolium. description, habits, and forage value.. 545< eg rq 



Polyporus spp., fungous enemies to spruce trees 544 26, 27 



Popenoe, Wilson, bulletin on "The pollination of the mango" 542 1-20 



Porcupine grass, description, habits, and forage value 545< rg kA 



Postal packages, danger in spread of Mediterranean fruit fly 536 20 



Potatoes — 

 growing — 



labor requirements 528< , g oq 



succession of operations 528 9-10 



yield, effect of fall irrigation in South Dakota 546 6, 7 



Poultry, feed hopper, construction 527 27-29 



Power companies, purchase of crossties, 1915, by kinds of wood 549 3 



Precipitation, Belle Fourche, S. Dak 546 2 



Preservatives, wood, use on crossties, 1915 549 7 



Preserves, lesson outlines for first year, and correlative studies 540 15 



f 9-10,12, 



32-34 



Produce associations, cooperative, location, number, methods, etc.. 547 < 49-51' 



1 56-59 



Publications, cotton culture, list 533 16 



Pulp, paper, use of spruce, note 544 2 



Pulpwood, spruce, consumption, 1909 544 4 



Purchasing organizations, cooperative (and marketing), among 



farmers in United States, bulletin by O. B. Jesness and W. H. 



Kerr 547 1-82 



Quince, host of Mediterranean fruit fly 536 24, 36 



Radieula armoracia. See Horse-radish. 



"Rag-doll " seed tester, description and management 527 16-17 



Railroads, purchase of crossties, 1915, by kinds of wood 549 3, 4, 5-6 



Railways, electric, purchase of crossties, 1915, by kinds of wood 549 3 



Range plants — 



important, life history and forage value, bulletin by Arthur W. 



Sampson 545 1-63 



moisture requirements, blooming periods, etc 545 58-60 



