Neue Litteratur. 119 



Burkhardt, F. 1917. Die der Landwirtschaft und dem Gartenbau 

 schädlichen Erdflöhe. (Flugbl. Abt. Pflanzenkr. Kaiser Wilhelm 

 Inst. Landw. Bromberg. 1917. 26. 3 pp.) 



Fromme, F. D. and H. E. Thomas. 1917. Black rootrot of the apple. 

 (Journ. agr. Res. X. p. 163-173. 3 pl.) 



Geschwind. 1917. Ueber die Ausbreitung und wirtschaftliche Bedeu- 

 tung des Eichenmehltaupilzes in Bosnien und der Hercegowina. 

 ^Oesterr. Forst- u. Jagdztg. XL1II. p. 92—93.) 



Heins, A. 1917. Nochmals über Russtau und Honigtau. (Glasnik 

 hrvatskoga prirod. drustva Agram. XXIX. p. 38—46.) 



Biggins, B. B. 1917. A Colletotrichum leafspot of Turnips. (Journ. 

 agr. Res. X. p. 157—161. 1 pl.) 



Kirchner, 0. v. 1916. Die Disposition der Pflanzen für ansteckende 

 Krankheiten. (Jahreshefte Ver. vat. Natk. Württemberg. LXXII. 

 p. XXIII— XXXII.) 



Knoepfle, F. 1915. Beiträge zur Frage der Widerstandsfähigkeit der 

 Obstbäume gegen Krankheiten. [Diss. Freiburg i. Schw.]. (München, 

 V. Höfling. 1915. 80 pp. 1 Tab.) 



Krause, F. 1916. Der Rosenmehltau. (Flugbl. Abt. Pflanzenkr. Kaiser 

 Wilhelm Inst. Landw. Bromberg. 1916. 22. 2 pp.) 



Krause, F. 1916. Pilzmerkblatt. (Flugbl. Abt. Pflanzenkr. Kaiser Wil- 

 helm Inst. Landw. Bromberg. 1916. 23. 3 pp.) 



Lind, J. 1916. Vorbeugungsmassregeln gegen den Haferflugbrand 

 [Ustilago avenae]. (Int. agr.-techn. Rundsch. VII. p. 462—463.) 



Mains, E. B. 1917. Species of Melampsora occuring upon Euphorbia 

 in North America. (Phytopathology. VII. p. 101—105.) 



Matz, J. 1917. A Rhizoctonia of the flg. (Phytopathology. VII. p. 

 110—117. 3 f. 1 pl.) 



Mc Cubbin, W. A. 1917. Contributions to our knowledge of the white 

 pine blister rust. (Phytopathology. VII. p. 95—100. 1 f.) 



Moore, W. and S. A. Graham. 1917. A neglected factor in the use of 

 nicotine suphate as a spray. (Journ. agr. Res. X. p. 47 — 50.) 



Potter, M. C. 1917. On economic mycology and the necessity for 

 further Provision for pathological research. (Rep. british Ass. Adv. 

 Sc. 1916. London 1917. p. 485-487.) 



Ramsbottom, J. 1917. Training in plant pathology. (Rep. british Ass. 

 Adv. Sc. 1916. London 1917. p. 487—488.) 



Ramsev, G. B. 1917. A form of potato disease produced by Rhizoc- 

 tonia. (Journ. agr. Res. IX. p. 421 — 426. 4 pl.) 



Roberts, J. W. 1917. Apple blotch and its control. (Bull. U. S. Dep 

 Agr. Washington. 1917. 534. 11 pp. 3 f. 2 pl.) 



Rosenbaum, J. and M. Shapovalov. 1917. A new strain of Rhi- 

 zoctonia solani on the potato. (Journ. agr. Res. IX. p. 413—419. 

 3 f. 2 pl.) 



Salmon, E. S. and J. Vargas Eyre. 1917. Some problems connected 

 with the treatment of fungous diseases by spraying. (Rep. british 

 Ass. Adv. Sc. 1916. London 1917. p. 488—489.) 



Sauer, F. 1917. Die Rotfäule. (Forstw. Zbl. XXXIX. p. 9-26.) 



Sherbakoff, C. D. 1917. Buckeyerot of tomato fruit. (Phytopathology. 

 VII. p. 119—129. 5 f.) 



Smith, E. F. 1917. A new disease of wheat. (Journ. agr. Res. X. p. 

 51 -53. 5 pl.) 



Stevens, F. L. 1917. Noteworthy Porto Rican plant diseases. (Phyto- 

 pathology. VII. p. 130—134.) 



Stevens, F. L. 1917. Problems of plant pathology. (Bot. Gaz. LXIII. 

 p. 297-306.) 



