452 SPECIAL PLANT PATHOLOGY 



Pear 



(Pirns communis, L.) 



Anthracnose (CoUelolrichum sp.). 



Occ, N. J. Agr. Exp. Sta., Rep. 15, 1894, p. 331 (iSqS)- 

 Hitter-rot {Glomerella rufomacidans (Berk.), Spauld. & v. Schr.). 

 Stevens & Hall, Diseases of Economic Plants, p. 107 (1910) 

 Black-rot {SphcBropsis malorum, Berk.). 

 Brown-blotch {Macros porium Sydowianum, Farneti) . 



Circ. 52, N. J. Agr. Exp. Sta. 

 Body-blight or Canker {Sphaeropsis malorum. Berk.). 



Occ, N. Y. Agr. Exp. Sta., Bull. 163, p. 203 (1899). 

 Dry-rot (Thelephora pedicellala, Schw.). 



Descr., Journ. Mycol., Vol. VI, pp. 113-114 (1891). 

 Treat, (pos.), Journ. Mycol., Vol. VT, p. 114 (1891). 

 Fire-blight (Bacillus amylovorus (Burr.), Trev.). 



Descr. lUus., N. Y. Agr. Exp. Sta., Rep. 5, 1886, pp. 275-289 (1887). 

 Descr., Conn. Agr. Exp. Sta., Rep. 18, 1894, pp. 113-116 (1895). 

 U. S. Dept. Agr., Year-book for 1895, pp. 295-298 (1896). 

 N. Y. (Corn. Univ.) Agr. Exp. Sta., Bull. 145, pp. 622-625,- 1898. 

 Utah Bull. 85, Nov., 1903, pp. 45-52. 

 Vt. Rep. 1902, pp. 231-239. 

 Ark. Bull. 113, 1913, pp. 493-505- 

 Treat, (pos.), Phytopath. 6, pp. 152-158, 288-292 (1916). 

 Fly-speck (Leptothyrium carpophilum. Pass.). 



N. J. Agr. Exp. Sta., Rep. 18, 1897, pp. 378-383 (1898). 

 Fruit Spot (Fabraa maculalum, (L6v.), Atk.). 



Leaf-blight (Fabraa maculalum (Lev.), Atk. and Cercospora minima, Tracy and 

 Earle). 

 Descr. lUus., U. S. Dep. Agr., Rep. for 18S8, pp. 357-362 (1889). 

 Del. Agr. Exp. Sta., Bull. 13, pp. 4-6 (1891). 

 N. Y. (Corn. Univ.) Agr. Exp. Sta., Bull. 145, p. 611 (1898). 

 Heald and Wolf, Plant Disease Survey, San Antonio, Texas, 

 (1912). 

 Treat (pos.), R. I. Agr. Exp. Sta., Bull. 31, pp. 5-9 (1895). 

 CJ. Quince (Leaf-spot). 

 Leaf-spot (Seploria piricola, Desm.). 



Descr. lUus., Treat, (pos.), N. Y. (Corn. Univ.) Agr. Exp. Sta., Bull. 145, pp. 

 S97-611 (1898). 

 Rust (Gymtwsporangium globosum, Farl.). 



Occ, Conn. Agr. Exp. Sta., Rep. 14, 1890, p. 98 (1891). 

 Scab (Fusicladium pirinum (Lib.), Fckl. = Vcnturia pirina, Aderh.). 



Descr. lUus., N. Y. (Corn. Univ.) Agr. Exp. Sta., Bull. 145, pp. 616-620 (1898). 

 Treat, (pos.), Vt. Agr. Exp. Sta., Bull. 44, pp. 85-90 (1895). - 

 Cf. Apple (Scab). 



