(134) 



Pammel, L. H., King, C. M. and Seal, J. L. Studies on a Fusarium disease of corn 



and sorghnm. (Res. Bull. XXXII [1916], Botany Section Jowa Agric. Exp. Stat.) 

 Parrott, P. J. and Fulton, B. B. Tree crickets injurious to orchard and garden fruits. 



(Bull. New York Agric.' Exp. Stat. Geneva N. Y. Nr. 388 [1914], p. 417—461.) 

 Pastre, J. The 1915 outbreak of downy mildew in France and Italy (Prog. Agric. 



et Vitic. (Ed. I'Est-Centre XXXVII [1916], p. 368—380.) 

 Patterson, F. W. and Charles, V. K, The occurrence of bamboo smut in America. 



(Phytopathology VI [1916], p. 351—356.) 

 PegUon, V. Bacterial rot of tomato. {Atti R. Accad. Lincei Rend. CI. Sci. Fis. Mat. 



e Nat. 5 Ser. XXIV [1915], II. Sem-, p. 157—160.) 



— Aplanobacter michiganense als Ursache des Verwelkens der Tomate in ItaUen. 

 (Internat. agrar-tcchn. Rundschau VI [1915], p. 1610 — 1611.) 



Peirce, R. G. Pinus resinosa a new host for Peridermium acicolum. (Phytopathology 



VI [1916],, p. 302—303.) 

 Peltier, G. L, Parasitic Rhizoctonias in America. (Illinois Sta. Bull. CLXXXIX 



[1916], p. 281—390, 23 Figs.) 



— A serious disease of cultivated perennials caused by Sclerotium Rolfsii. (Illinois 



Stat. Circ. CLXXXVII [1916], 4 pp. 1 Fig.) 

 Perotti, R, Beitrag zur Kenntnis der Physiologie der Mycoderma vini. (Internat. 



Agrar-techn. Rundschau VI [1915], p. 1478—1479.) 

 Peter, Gilly. Gegen die Krankheiten der Kohlgewachse. — TorfmuU gegen Kohl- 



hemie. (Prakt. Ratgeb. im Obst- u. Gartenbau XXXII [1917], p. 177 — 17^.) 

 Petherbridge, F. R, Fungoid and insectpests. (Cambridge, University Press 1916, 



174 pp.) 

 Petri, L, The reciprocal influence between mycotrophic roots of different plants. 



(Atti R. Accad. Lincei, Rend. Cl. Sci. Eis. Mat. e Xat. 5. Ser. XXIV [1915], 



p. 536—539, 1 Fig.) 

 Pfeil, Wirksame Hilfsmittel im Kampf gegen die Schadlinge des Obst- und Garten- 



baues. (Arb. d. Landw.-Kamm. f. d. Prov. Brandcnb. [1916], p. 85 — 98.) 

 Phillips, W. J. Macrosiphum granarium. the English Grain Aphis. (Journ. Agricult. 



Research Washington Vol. VII [1916], p. 463--480, Plate B and XXXIII— XXXIV. 

 Pollacci, G. Brusca of ohve. (Atti 1st. Bot. R. Univ. Pavia2. Ser. IX [1911], p. 26—28.) 

 Pomaskil, A, Regarding the changes in the chemical composition of rye resulting 



from the activity of certain Fusarium forms. (Mat. Mikol. i Fitopatol. Ross. I 



[1915], p. 77—106.) 



r 



Potebnia, A, A, Fungus parasites of the higher plants in the region of Kharkov and 



adjacent provinces. (Kharkov. Oblast. Selsk. Khoz. Opytn. Sta. Fitopatol. Old., 



Nr. 1 [1915], 120 pp. 19 Figs.) 

 Preissecker, K, Eine Blattkrankheit des Tabaks in Rumanien. (Fachl. Mitteil. 



k. k. osterr. Tabakregie 1916, 15 pp., 4 Taf.) 

 Prell, H, Dap Springen der Gallmiickenlarven. (Zeitschr. f. wiss. Insektenbiol. XII 



[1916], p. 145—148. ill.) 

 Quainfance, A. L. and Wood, W. B. Laspej^resia molesta, ah important new Insect 



Enemy of the Peach. (Journ. Agricult. Research, Washington Vol. VII [1916], 



p. 373^378. Plates XXVI— XXXI.) 

 Quereau, F. C. Straight head in rice. (Louisiana Stats. Kept. 1915, 31 pp.) 



Radlberger, L. Zur Schleimbildung an der Zuckerriibe. (Osterr.-ungar. Zeitschr. 



f. Zuckerind. u. Landw. XLIV [1916], p. 347—348.) 

 Pangel, E. Fungos parasites do guando Cajanus indicus Spreng. (A Lavoura XVIII 



[1914], p. 5—12, PI. I— III.) 



