DISEASES OF PLANTS. 849 



treatment to seed wheat aud barley for protection against loose smut. See 

 also a previous note (E. S. R., 24, p. 346). 



A rust-resistant hybrid wheat, Schribaux (Bui. Soc. Nat. Agr. France, 12 

 (1912), No. 7, pp. 636~6.'f0). — The author gives an account of his attempts to 

 secure by crossing a wheat resistant to the rust which annually attacks the 

 grain in southeast France. He reports that a hybrid of Ri^te with Japhet re- 

 sponded best to these efforts, producing a wheat having comparatively few 

 beards, exhibiting in fair degree the desirable features of earliness, quality, 

 yield, and resistance to rust, and giving promise of future improvement in these 

 respects. 



Dry spot of oats, H. Zimmeemann (ilitt. Deut. Landw. Gesell., 26 (1911), 

 No. 20, pp. 2Jt5, 2J,6; abs. in Ztschr. Pflanzenkrank., 22 (1912), No. 4, p. 225).— 

 The author sums up the results of observations made on dry spot of oats in the 

 region of Mecklenburg, describing the appearance and progress of plants show- 

 ing the disease. This is said to be of very variable severity, and to be ]jrob- 

 ably due to excessive or improper liming in case of certain sandy or light soils 

 of that region. 



Studies on canker in clover, L. Hiltner and G. Gentneb (PraJct. Bl. Pfianz- 

 enbau u. Schutz, n. ser., 10 (1912), No. 8, pp. 90-95). — This author claims that 

 the appearance of clover canker, in most of the cases observed, was due to the 

 use of imported seed and that different varieties of clover were affected in 

 markedly different degrees. A brief discussion of the modifying effect on 

 crop returns of climate and manures is also given. 



The prevalence of disease among varieties of sugar cane, J. B. Harrison 

 and F. A. Stockdale (Jour. Bd. Ayr. Brit. Guiana, 5 (1912), No. 4, p. 226). —The 

 susceptibility of several vai'ieties of Bourbon cane in regard to resistance to 

 attacks of rind fungus is discussed. 



Canker or rot of Solanaceae: Eggplant, peppers, and tomato, P. Voglino 

 (Italia Agr., //9 (1912), No. 3, pp. 56-58, fig. 1; abs. in Internat. Inst. Agr. 

 [Rome], Bui. Bur. Agr. Intel, and Plant Diseases, 3 (1912), No. 4, pp. 1065, 

 1066). — Ascocliyta hortorum, found in 190S to cause* a drying up of the leaves 

 and fruits of eggplant, was in 1910 observed in France on stems of that plant. 

 In the same year it was noted on tomato plants in Turin, the cankerous brown 

 spots spreading from stalks and leaves to green or maturing fruits and darken- 

 ing and rotting the pulp. Spraying with Bordeaux mixture proved an efficient 

 remedy. The author offers the hypothesis that to this fungus also may be 

 attributed the withering of peppers, producing much damage during recent 

 years in Piedmont. 



Celery blights and how to control them, E. M. Streight (Veg. Grower, 2 

 (1912), No. 3, pp. 4, 16, figs. 7). — An account is given of the appearance, mode 

 of attack, and progress of Cercospora apii and Septoria petrosclini, said to 

 cause, respectively, early and late blight of celery. Spraying with the usual 

 Bordeaux mixture is claimed to prevent both spread and infection, if used in 

 time. 



Some apple diseases and their treatment, C. Brooks (New Hampshire Sta. 

 Bui. 157, pp. 32, figs. SO).— This is a revised edition of Bulletin 144 of the 

 station (E. S. R., 22, p. 747), with some additional information relating to the 

 fruit spot of the apple due to Phoma pomi, a preliminary account of which has 

 been noted (E. S. R., 27, p. 652). 



[Diseases of peaches in the Caucasus and resistant varieties], A. S. 

 BoNDABTSEv (ZJiur. BoUezni Rast., 5 (1911), No. 5-6, pp. 134, 135; abs. in In- 

 ternat. Inst. Agr. [Rome], Bui. Bur. Agr. Intel, and Plant Diseases, 3 (1912), No. 

 4, p. 1061). — ^Among the causes of diseases attacking peaches in the Caucasus 

 region in 1911 are mentioned Exoascus deformans, Cercospora cerasella, Puc- 



