346 EXPERIMENT STATION EECORD. 



The wintering' over of summer conidia of pathogenic Ascomycetes and 

 their resistance to cold, It. Ewert {Ztschr. P/lanzcnkrank., 20 {1910), No. 3, 

 pp. 129-141, fig. 1). — In germinatiou experiments with the wintered-over sum- 

 mer conidia of Mycospluerella sentina and Pseudopcziza ribis, many of the 

 conidia were found to be viable, but infection experiments with them gave 

 negative results, due, the author thinks, to the inoculation method used. 

 Summer conidia of M. sentina, P. ribis, Fusicladitim dendriticuni, and F. 

 pirimini, subjected from 1 to 3 times to temi)eratures ranging from —5° to —15° 

 C. for several hours at each exposure, uniformly gave good results as to 

 viability. 



As a result of these experiments, the author claims that these wintered-over 

 summer conidia are undoubtedly capable of infecting their proper hosts the 

 following spring. 



Sooty molds, R. Woy {Prakt. Rathgeher Obst. u. Gartcnbau, 1909, p. 301; 

 abs. in Ztschr. Landw. Versuchsir. Ostcrr., 13 {1910), No. 1, p. 58). — For com- 

 bating the sooty molds and mildews tliat cover with a dark mycelium the 

 leaves of vaxious plants growing in hothouses, the author recommends better 

 ventilation of the houses and the frequent washing of affected plants with 

 soapy water. 



Fungi causing diseases of cultivated plants in the West Indies, C. K. 

 Bancroft {West Indian Bui., 10 {1910), No. 3, pp. 235-268, pJ. i).— Brief de- 

 scriptive accounts are given of the various fungi which have been reported as 

 injurious to cultivated plants in the West Indies. 



The diseases are dealt with in the order of the systematic classification of 

 the fungi. After a description of the difTerent parasites some of the more impor- 

 tant literature relating to them is given, so that further information may 

 be obtained regarding the different species. The list has been supplemented 

 by additions by F. W. South, bringing the information more up to date. 



In appendixes notes are given on bacterial diseases and a discussion is pre- 

 sented of the relationship between IVichosphwria sacchari and Thielaviopsis 

 ethaceticus. A discussion is also given of the nomenclature of Diplodia cacao- 

 icola and its allies. 



Legislation in the West Indies for the control of pests and diseases of 

 imported plants, II. A. Ballou {West Indian Bui., 10 (1910). No. 3, pp. 

 191-23Jt). — A comi)ilatiou is given of the laws and regulations relating to the 

 importation of plants to prevent the introduction of insect pests and fungus 

 diseases. 



The control of the loose smut of grains, K, Stormer {Landiv. Wchnschr. 

 Sachsen, 12 {1910), No. 12, pp. 91, 92).— This is a discussion of disputed points 

 as to the reasons for the better results obtained in the hot water treatment by 

 soaking the grain at a higher temperture than was formerly considered nec- 

 essary. 



A barley disease, L. H. Pammel, Charlotte M. King, and A. L. Bakke {Abs. 

 in Hcienee, n. scr., 31 {1910), No. 799, p. 639).— The authors report a parasitic 

 disease of barley which was observed during the enrly part of July, 1909. The 

 disease manifests itself in the form of brownish circular or somewhat elongated 

 dark-colored spots, and the leaves soon become brown. Cultures and inocula- 

 tion experiments demonstrated that the fungus was parasitic upon barley and 

 also upon corn. It is believed to differ from Hclminthosporium teres and H. 

 turcicum. 



Present status of the cotton anthracnose investigations at the South Caro- 

 lina Experiment Station, H. W. Barre {Abs. in Seienec, n. sen, 31 {1910), 

 No. 799, p. 638). — ^This paper gives a summary of the investigations on the cot- 



