746 EXPEBTMEISTT STATIO:?^ RECORD. 



Notes are given on a number of other diseases, among them chlorosis of 

 fruit trees, blight (B. amylovorus) , cotton root rot (Os!onium omnivorum), bean 

 rust (Ui'omyces appendiculatus) , crown gall (Pseudomonas tumefaciens) , po- 

 tato blight (Macrospormm solani), and alfalfa leaf spot {Pscxidopcsiza medi- 

 caginis). 



[Fungus diseases in Barbados], W. No well (Rpt. Dept. Agr. Barhados, 

 1912-13, pp. U, 45; abs. in Agr. News [Barhadosi, 13 (1914), ^'o. 314, P- 158).— 

 The author briefly reports on a number of diseases observed during the year. 



Of the sugar cane diseases the root disease, caused by the fungus Marasmius 

 sacchari, is said to have been the most important and injui'ious, while the rind 

 disease iColletotrichum falcatum) was rather unimportant. The author urges 

 planters to exercise care in the selection of cane cuttings, using only the strong- 

 est and healthiest plants, in order that the injury due to the disease may be 

 reduced as much as possible. 



Attention is called to Entypa erumpens on the evergreen Ficus nitida and 

 other' shade trees. 



Brief notes are given on silver scurf on limes, which is considered probably 

 due to Coniothecium sp. It is suggested that spraying with Bordeaux mixture 

 might be useful in controlling it. 



Brief notes are also given on the black spot of roses, rose mildew, and the 

 powdery mildew of grapes, and suggestions are given for the control of these 

 rather common diseases. 



New fungus diseases of useful plants, E. Pantanelli and U. Ceistofoletti 

 (Staz. Sper. Agr. Ital., 46 (.1913), No. 10, pp. 625-642, pis. 4).— The authors 

 report studies carried out by them on Pleospora criohotryce n. sp. (conidial 

 form, Macrosporium eriohotryce n. sp.), Puccinia endivice, P'sathyrella ampelina. 

 Botryodiplodia chamceropis, Ascochyta pisi, Ovularia palmirola n. sp., and 

 Macrosporium liesperidearnm n. sp., descriptions of the new forms being given. 



New diseases and parasites noted and studied in the cryptogamic labora- 

 tory at Pavia, G. Bbiosi (Atti R. 1st. Bot. Univ. Pavia, 2. ser., 16 (1914), pp. 

 72-75). — The diseases here listed affect a great variety of plants, representing 

 garden, field, forest, flower garden, etc. 



Publications of the cryptogamic laboratoiy of Pavia, G. Briosi (AtU R. 

 1st. Bot. Univ. Pavia, 2. ser., 16 (1914), PP- 75-102).— The director gives lists, 

 hy years, of publications of the cryptogamic laboratory at Pavia from 1873 to 

 1912, inclusive. 



A method of picking up single spores, C. "W. Edoeeton (Phytopathology, 4 

 (1914), No. 2, pp. 115-117, fig. 1). — ^A description Is given of a form of apparatus 

 devised by the author, by which it is possible to secure single spores of any 

 organism thpt is being studied. 



The identity of the anthracnose of grasses in the United States, G. W. 

 Wilson (Phytopathology, 4 (1914), No. 2, pp. 106-112).— The results of a study 

 of all the available specimens of grass anthracnose are given, in which the 

 author shows that the fungus causing this widespread disease has been de- 

 scribed and specimens distributed under at least 14 different names. The data 

 presented indicate that the proper name of the fungus should be Colletotrichvm 

 graminicolum n. n. In the course of his study he found this fungus present on 

 species of 8 of the 12 tribes of the grass family. 



Tylenclius dipsaci in the United States, E. A. Bessey (Phytopathology, 4 

 (1914), No. 2, p. US). — The autljor reports having found, In 1907, this nematode 

 In i*ye grown at Edgertou, Kans. 



Plag smut of wheat, G. P. Dahnell-Smith (Agr, Oaz. N. 8. Wales, 25 (1914), 

 No. 4, pp. 285-287, pi. 1). — The best results obtained at the Cowra station from 

 treating seed Infected with Urocystia tritici followed dipping in 2 per cent 



