DISEASES OF PLANTS. 349 



The author reviews the present state of affairs regarding the spread of the 

 American gooseberry mildew {Sphcrrotheca mors-uvw) in Kent. It is stated 

 that there are 3,294 acres of infected gooseberries in Kent, as compared with 

 2,561 acres the previous season. This spread has been in spite of the efforts 

 that have been carried on to control the disease, indicating that compulsory 

 measures have no appreciable effect in clearing plantations of the disease. 



A brief account is given of a disease of tomatoes due to R. nigricans. This 

 trouble appeared on fruit after shipment, causing considerable loss. The fun- 

 gus appears to be a facultative parasite and causes a softening and rotting of 

 the fruit. 



Report of the plant pathologist, ]M. T. Cook {l:^ew Jersey Stas. Rpt. 1912, 

 pp. 509-527). — A summary is given of the work conducted by the department of 

 plant pathology, which was organized under the author's direction in December, 

 1911. The work consists of inspection of nursery stock, orchards, and imported 

 plants. Some studies have been made on chestnut bark disease, and investiga- 

 tions have been begun on peach yellows, sweet potato diseases, apple rots, and 

 a storage rot of dahlias. The report concludes with a list of diseases reported 

 during the year. 



Report on the work of the division for plant protection, C. Brick (Jahrb. 

 Ilamhurg. Wiss. Anst., 29 {1911), Beiheft 10, pp. 233-25.'f) .—Brief accounts are 

 given of diseases and animal enemies of plants reported during 1911-12 from 

 German territory and from many other parts of the world, with more par- 

 ticular reference to those in portions of Germany proper, concluding with an 

 index of injurious organisms noted in this connection. 



Review of vegetable pathology (Ann. Uffic. Agr. Prov. Bologna, 18 (1911-12), 

 pp. 194-197). — A brief account is given of observations on injurious animals 

 and fungi, in particular Ophioholus graminis and. 0. herpotrichus, associated 

 with stalk disease of wheat. Tabulated results are presented of reports made 

 by several agriculturists in different localities regarding their observations on 

 time and conditions of attack, susceptibility of varieties, effects of ferti- 

 lizers, etc. 



Recommendations made as to protective measures include application of 

 fungicidal mixtures to infected stubble; rotation of crops; avoidance of excess 

 of uitrogcenous manures, also of very thick sowing; and suitable drainage. 



A bibliography of niycological literature, G. Lindau and P. Syuow {The- 

 saurus Utteraturw mycologicce et Uchenologicw ratione JiaMta prwcipue omnium 

 quw adhuc scnpta sunt de mycologia appUcata. Leipsic, 1912, vol. 3, pi. 1, pp. 

 1-192; 1913, vol. 3, pt. 2, pp. 193-766+IV).— This is in continuation of the 

 bibliographies of mycological literature previously noted (E. S. R., 22. p. 133), 

 the present volume covering the publications from 1907 to 1910, with additions 

 and corrections to previous issues. The number of titles included in volume 3 

 is 12,120, and the total number of references listed in the three volumes issued 

 to date is 41.860. 



Some new or rare plant diseases, L. Montemartini {Riv. Paiol. Teg., 6 

 {1913), No. 7, pp. 204-210). — The author gives brief notices of studies on some 

 diseases and enemies of cultivated plants made or reported at the laboratory 

 for plant pathology at Milan, including Cladosporium cucumerinum, damaging 

 cucumbers; a leaf six)t of Iris, ascribed to a Septoria ; Botrytis vulgaris, para- 

 sitic on camellias; C. pisi, on kidney beans, etc. 



A bacterium causing a disease of sugar-beet and nasturtium leaves, Nellie 

 A. Brown and Clara O. Jamieson (U. S. Dept. Agr., Jmir. Agr. Research, 1 

 (1913), No. 3, pp. 189-210, pis. 3, figs. 5).— In 1908 a bacterial disease was ob- 

 served on nasturtium leaves growing near Richmond, Ya., and a similar disease 



