334 



BACTERIA IN RELATION TO PLANT DISEASES. 



1899. Frank, A. B. u. SoRAUER, Paul. Jahresbericht 

 des Sonderausschusses fiir Pflanzenschutz, 

 1898. Arbeiten der deutschen Landwirt- 

 schaftsgesellschaft, Heft 38, Berlin, 1899. 

 V. Del — und Gemiisepflanzen. 18 Bakteriose, 

 p. 105. 

 Dr. Frank reports from Berlin in cabbage, "the same bacterial 

 disease which in America does great injury." Mere mention. 



1899. Smith, Er WIN F. Gelatin culture media. Am. 

 Nat., 1899, p. 214. 



Brief text and i plate showing behavior of Ps. campeslris 

 in various nutrient gelatins. Abstract of a paper read before 

 Soc. for Plant Morphology and Physiology, Dec. 28, 1898. 



1899. Harding, H. A. On the occurrence of the 



black-rot of cabbage in Europe. Proc. Am. 

 Asso. Adv. Sci., Aug., 1899, vol. XLVin 

 (Columbus meeting). Published Dec, 1899, 

 p. 294. A brief abstract. 



The paper was subsequently translated into German and 

 published in full (see next number). 



1900. Harding, H. A. Die schwarze Faulniss des 



Kohls und verwandter Pflanzen, eine in 

 Europa weit verbreitete bakterielle Pflanz- 

 enkrankheit. Centralbl. f. Bakt. etc., Mai 18, 

 1900, 2te Abt., Bd. vi. No. 10, pp. 305-313, 

 2 pi., I fig. in text, and a map showing 11 

 places in Europe where the disease had been 

 located by the author. Also a separate. 



1900. VAN Hall, C. J. J. Twee bacterienziekten. 



Teijdschrift over Plantenziekten, Jaarg. VI, 

 Afd. 5-6, 1900, pp. 169-178, I fig., I pi. 



Reports finding the disease caused by Pseudomonas cavi- 

 peslris in cabages sent from North Holland to the laboratory 

 at Amsterdam. 



1901. Smith, Erwin F. Entgegnung auf Alfred 



Fisher's "Antwort" etc., Centralbl. f. Bakt. 

 etc., 2te Abt. Bd. vii. No. 5-6. Also a separate. 



Tafeln Vlll and ix and accompanying text (pp. 195-197) 

 relate to Bacterium campestre. The plates are heliotypes from 

 photomicrographs by the writer. 



1 90 1. Heckb, Ludwig. Eine Bacteriosis des Kohl- 



rabi. Zeits. f. des Landw. Versuchswesen in 

 Oesterreich, iv Jahrg., Heft. 4, pp. 469 to 476, 

 I heliotype plate. Wien, 1901. Also a sepa- 

 rate, pp. 8. 



1902. Bos, J. RiTzEMA. De Bacterieziekte in de 



Kool. Phytopathologisch Laboratorium Willie 

 Commelin Scholten. Verslag over etc., in het 

 jaar 1901. Amsterdam, 1902, pp. 13 and 14. 

 1902. HeckE, LuDWiG. Die Bacteriosis des Kohlrabi. 

 Zeits. fiir landwirthschaftliche Versuchswesen 

 in Oesterreich, v Jahrg., Heft i, pp. i to 21. 

 Wien, 1902, with i Crayondruck plate. Also 

 a separate, 2 1 pp. 



1 902 . ReuTER reports occurrence of Ps. campestris on 



cabbage in Denmark in 1900. Zeits. f. Pflanz- 

 enkr., 1902, Bd. xii, p. 293. 



1903. Stewart, F. C. and Harding, H. A. Combating 



the black-rot of cabbage by the removal of 

 affected leaves. Bull. No. 232, New York 

 Agric. Exp. Sta., Geneva, N. Y., April, 1903, 

 pp. 43 to 65. 

 Printed also later as part of an annual report. 



1903. Potter, M. C. On the brown-rot of the 



Swedish turnip. With a note on the same 

 disease of the cabbage. The Journal of the 

 Board of Agriculture, No. 3, London, Dec, 

 1903, vol. X, pp. 314-318, I pi. in color. 



1904. Harding, H. A. and Stewart, F. C, Vitality 



of Pseudomonas campestris (Pam.) Smith, on 

 Cabbage seed. Science, July 8, 1904. New 

 Series, Vol. xx. No. 497, pp. 55-56. 

 This organism was obtained from cabbage seed taken from 

 plants diseased by black-rot. 



On cabbage seed soaked in water to which Ps. campeslris 

 was added and then dried and placed in test-tubes some of the 

 bacteria were alive at the end of 10 months. See bull. 251. 



1904. Harding, H. A., Stewart, F. C. and Prucha, 



M. J. Vitality of the cabbage black-rot germ 

 on cabbage seed. Bull. 25 1, New York. Agric. 

 Exp. Sta., Geneva, N. Y., Oct. 1904. 



1905. Smith, Erwin F., and Swingle, Deane B. 



The Effect of Freezing on Bacteria. Science, 

 N. S., vol. xxi, No. 535, March 31, 1905, 

 pp. 481-482. 

 1907. Edwards, S. F. Pseudomonas campeslris. 

 Thirty-second Annual Report of the Ontario 

 Agric. Col. and Exp. Farm, 1906. Toronto, 

 1907, p. 136. 

 "It was observed that some kinds were more severely in- 

 jured than others. For example the Jersey Kale was more 

 diseased than any other kale. ' ' 



1907. Kirk, T. W. Black-rot of cabbage. Ann. 



Report, New Zealand Department of Agri- 

 culture, 1907, vol. XV, p. 157. 

 Kirk reports having seen black-rot of cabbage due to Bac- 

 terium campestre in two different years in New Zealand. 



1908. Edwards, S. F. Cabbage resistant to black-rot. 



In 33d Annual Report, Ontario Agricultural 

 College and Experimental Farm for the year 

 1907. Toronto, 1908, p. 134. 

 1908. JanczEwski. a. Pseudomonas campestris 

 (Bacteriosis of cabbage). Jahresbericht for 

 1907 (Russian), St. Petersburg, 1908, p. 71. 



1908. FawcETT, H. S. Cabbage Disease. Black Rot 



(Pseudomonas campestris (Pammel) Erw. 

 Smith). Florida Agric. Exp. Sta., Ann. Re- 

 port for 1908, pp. Lxxv-Lxxx. Also Press 

 Bulletin, loi. 



Reports "serious loss to cabbage, cauliflower, and ruta-baga 

 crops in the State for several years." At Sutherland in 

 February, 1908, "an examination of the fields showed that the 

 black rot was prevalent throughout the section, destroying from 

 25 to 75 per cent of the crops. Cultures made from diseased 

 plants revealed the presence of yellow bacteria {Pseudomonas 

 campestris) in specimens of the three plants named." 



1909. Sackett, Walter G. Black Rot of Cabbage. 



Bulletin 138, Colorado Agric. Exp. Sta., Jan. 

 1909, pp. 15-18. 



1910. Harding, H. A. The Constancy of Certain 



Physiological Characters in the Classification 

 of Bacteria. New York, Agric Exp. Sta., 

 Tech. Bui. No. 13, June, 1910, pp. 29-34. 



Describes cultures of Ps. campeslris made as test of classifica- 

 tion card, Soc. American Bact. 



