4i6 SPECIAL PLANT PATHOLOGY 



Crown-gall (JPseudomonas lumefaciens, E. F. Sm. & Towns). 



U. S. Dept. Agr. Bur. Plant Industry, Bull. i86, p. 13 (191°)- 



Hairy-root, Ibid., p. 14. 

 Fly-speck (Leplolhyrium pomi (Mont. & Fr.), Sacc). 



Ohio Agr. Exp. Sta., Bull. 79. P- i33 (1897)- 

 Frost-blister (Non-par.). 



N. Y. Agr. Exp. Sta., Bull. 220 (1902). 

 Frog-eye Spot {Phyllosticta pirina Sacc.) 



Va. Rep., pp.' 95-115, figs. 16 (1911-12). 

 Fruit-pit (Non-par.). 



Bull., Torr. Bot. Club, Vol. XXXV, p. 430 (1908). 



IPhyllachora pomigena (Schw.), Sacc. 

 Phoma pomi, Pass. (Phytopath., Vol. II, pp. 63-72). 

 Sphceropsis malorum, Pk. 



Bull. 121, U. S. Bureau PI. Indst. 

 Leaf -spot (Frog-eye) (Phyllostula pirina, Sacc). 



R. L Agr. Exp. Sta., Rep. 7, pp. 188-192 (1895). 

 Pink-rot {Cephalothecium roseum, Cda.). 



N. Y. Agr. Exp. Sta., Bull. 227 (1902). 

 Powdery Mildew {Podosphara leucotricha (Ell. & Ev.) Salm. and P. oxyacantha (DC.) 

 deBy.). 



U. S. Dept. Agr., Bull. 120 (1914). 

 Ripe- rot (Gleosporium fructigenum, Berk). 



Journ. Mycol., VoL VI, pp. 164, 172 (1891). 

 Root-rot {Armillaria mellea Vahl) . 



Oregon State Biennial Report, pp. 226-233 (1911-12). 

 Scab {Venturia inaeqiialis (Cke.), Wint.). 



N. Y. (Cornell) Agr. Exp. Sta., Bull. 335 (1913). 



Mont. Bull. 96, pp. 65-102, pi. ±, figs. 3 (February, 1914). 

 Scab (Fusicladium dendriticum (Wallr.) Fckl.) 



Wash. Bull. 64, pp. 24, pis. 2, figs. 5 (1904). 

 Rusts (Gymnosporangiumjuniperi virginianm Schw. {Rmsielia pirala (Schw.), Thaxt.) ; 



G. glohosum, Farl. {Rosstelia lacerata, y, n. Thaxt.). 

 Scald (Non-par.). 



Vt. Agr. Exp. Sta., Rep. 10, p. 55 (1897). 

 Scurf (Phylloslicta pnmicola (Opiz), Sacc). 



Stevens & Hall, Disease of Economic Plants, p. 78 (1911). 

 Silver-leaf (Stcreum purpureum, Pers.). 



Phytopathology i, p. 177 (1911). 

 Sooty-blotch (Leplolhyrium pomi (Mont. & Fr.), Sacc). 



Duggar, Fungous Diseases of Plants, p. 367 (1909). 

 Spongy Dry-rot (Volutella friicti, Stev. & Hall). 



Duggar, Fungous Diseases of Plants, p. 316 (1909). 

 Spray Injury (N on- par.). 



Bordeaux injury, N. Y. Agr. Exp. Sta., Bull. 287 (1907). 



Lime-sulphur injury. Ore. Agr. Exp. Sta., Research Bull. 2 (1913). 



