LITERATURE CITED 11$ 



cides to control diseases of plants had its beginning in attempts 

 to control another downv-mildew disease, namely, that induced 

 by Feronospora tabacbia. The fundamental principles involved 

 in the use of two volatile materials, benzol and paradichloro- 

 benzene, and related compounds are presented in reports by 

 Wolf et al. (1940), Pinckard et al. (1940), and McLean et al. 

 (1940). 



LITERATURE CITED 



Arens, K., "Untersuchungen liber Keimung und Zvtologie der Oosporen 



von Flasiiiopara viticola (Berl. et de Toni)," Jahrb. iviss. Botan., 10: 



57-92, 1929. 

 "Physiologische Untersuchungen an PlcisTnopm\i i-iticola, unter besond- 



erer Berucksichtigung der Infektionsbedingungen," Jahrb. iviss. Botcvi., 



70:93-157, 1929a. 

 Berlese, a. N., Saggio di una vionografia delle Feronosporaceae. 311 pp. 



1903. 

 Clinton, G. P., "Downy mildew or blight of muskmelons and cucumbers," 



Conn. Agr. Expt. Sta. Ann. Rept., 1904: 329-362, 1905. 

 Cook, H. T., "Studies on the downy mildew of onions and the causal or- 



ganism, Feronospora destriictior (Berk.) Casparv," Cornell Agr. Expt. 



Sta. Mem., i-/5. 40 pp. 1932. 

 Dixon, L. F., Ruth McLean, and F. A. Wolf, "The initiation of downv 



mildew in North Carolina in 1934," Fbytopatbology, 25: 628-639, 1935. 

 Gaumann, E., "Beitrage zu einer Monographie der Gattung Peronospora 



Corda," Beitr. Kryptogamenfi. der Scbiveiz, S: 1-360, 1923. 

 Gregory, C. T., "Spore germination and infection with Flasmopara viti- 

 cola'' Fhytopatbology, 2: 235-249, 1912. 

 Hiura, M., "iMycological and pathological studies on the downy mildew 



of Italian millet," Giju Imp. Coll. Agr., Research Bidl., 55:121-283, 



1935. 

 Kruger, F., "Beitrag zur Kenntnis der Kernverhaltnisse von Albugo Candida 



und Feronospora ficariae,'' Zentr. Bakt. Farasitenk., II Abt., 21: 186-205, 



1910. 

 McDoNouGH, E. S., "The nuclear histor}^ of Sclerospora graminicola,''' My- 



col., 25>: 151-173, 1937. 

 McLean, Ruth, J. A. Pinckard, F. R. Darkis, F. A. Wolf, and P. M. 



Gross, "The use of paradichlorobenzene in seedbeds to control tobacco 



downy mildew," Phytopathology, 50:495-506, 1940. 

 Melhus, I. E., "Perennial mycelium in species of Feronosporaceae related 



to Fhytophthora infestans,'' J. Agr. Research, 5: 59-69, 1915. 

 Melhus, I. E., F. H. van Haltern, and D. E. Bliss, "A study of Sclero- 



spora graminicola (Sacc.) Schroet. on Setaria I'iridis (L.) Beauv. and 



Zea mays (L.)," Iowa Agr. Expt. Sta. Res. Bull., //7: 297-338, 1928. 

 Millardet, p. a., "The discovery of Bordeaux mixture." 25 pp. Fhyto- 



path. Classics, 5, 1933. (Translated by F. J. Schneiderhan.) ' 



