460 P- Sydow: Pfianzenkrankheiten. [43 



650. Stevens. H. E. Cause of Citrus canker. (Florida Grower 

 XI, Nr. 31, May 1915, p. 15.) - Pseudomonas Citri. 



651. Stevens. H. E. Nature and cau.se of Citrus canker. (Florida 

 Grower XI, Xr. 30. April 1915, p. 5-6.) 



652. Stevens, H. E. Eeport of plant patliologist. (Florida Agric. 

 Exper. Stat. Eept. 1913/14, ersch. 1915, p. LVII-LXXIV.) - Gummosis, 

 melanose, Citrus canker (Pliyilosticta spec). 



653. Stirling, Frank. Eradication of Citrus canker. (Florida 

 Growers' and Shippers' League Bull. Nr. 1 1914, p. 9 — 16.) 



654. Stirling, Frank. Eradication of Citrus canker. (Florida 

 Agric. Exper. Stat. Bull. Xr. 124, 1914, p. 44-53.) 



655. Stirling, Frank. Citrus canker deadly enemy to orange 

 trees. (Florida Grower X. Xr, 21, 1914, p. 13.) 



656. Tonny, L. S. Citrus canker Situation. (Florida Grower XI, 

 1915, jNr. 20, p. 20-21.) 



657. Tenny, L. S. The Citrus canker Situation in Florida. 

 (Florida Growers' and Shippers' League Bull. Xr. 1, 1914, 16 pp.) 



658. Tucker. E. S. Notice relating to Citrus canker. (Louisiana 

 Agric. Exper. Stat. Crop Pest Xotice I,1914,2pp.) 



659. Webber. Herbert . lohn. Citrus experiment Station. (Patho- 

 logical investigati ons). (Calif. Agric. Exper. Stat. Eept. 1913/14, ersch. 



1914, p. 67-72.) 



660. Webster. P. J. Citrus fruits in the Philij)pines. (Philippin. 

 Agric. Eev. VIII, 1915. p. 6-28. 6 PL. 1 Fig.) 



661. Wright. Edgar A. The war ou Citrus canker at close 

 ränge. (Florida Grower X, Nr. 26, 1914, p. 14 — 15.) 



662. Zerbsl, Ci. H. Citrus bark-rot. (Philippine Agric. Eev. VIII, 



1915, p. 95-97.) 



e) Coffea. 



663. Anonym. Withertip of coffee. (Mem. Fornento, Costa Eica 

 1913, p. 380-381.) 



664. Anonym. Molestia do cafeeiro. (Bol. de Agricultura, Sao 

 Paulo XVI, 1915, p. 69-75.) 



665. Coleman, L. C. Tlie contro] of Koleroga of the Areca 

 palm, a disease caused by Pliytophtlwra ornnivora yar. Arecae. (Agric. 

 Journ. Tndia X, 1915, p. 129-136.) 



666. Corradine. E. G. Enfermedades del cafeto. (Eev, Nac. 

 Agric. Colombia IX, Nr. 123, 1914, p. 93-97.) 



667. Fawcett, G. L. Fungus diseases of Coffee in Porto Eico. 

 (Porto Eico Agr. Ex-p. State Bull. Xr. 17. 1915, p. 1 -29, 8 tab.) - Leaf rot 

 or thread blight (Pellicularia Koleroga); leaf spot (Stilbella flavida); root 

 disease-black {Rosellinia spec); berry spot [Cercospora coffeicola); ,,zoned" 

 leaf spot {Cephalosporium spec); root and trunc disease. 



668. Keuchenius, P. E. Ziekten en plagen van de koffie -cultuur 

 in Nederlajids-Indie. (Teysniannia XXVI, 1915, p. 601—614.) 



669. Maitland. T. D. Coffee diseases in Uganda. (Ann. Eept. 

 Dept. Agric. Uganda 1914, p. 18 — 19.) 



670. Koepke. W. Ons Standpunkt inzake het gramang- en 

 lixizenvraagstuk voor de koffie -cultuur , tevens eeu verweer- 



