82 BULLETIN 1366, U. S. DEPARTMENT OF AGRICULTURE 



PETJNUS — Continued. 



Prunus sp., cherries (sweet and sour) — Continued. 



Cladosporium carpophilum Thuem., scab. Me., N. H., N. Y., Mich., 



Iowa, Oreg. 

 Clitocybe parasitica E. M. Wilcox, root-rot. Ark. 

 Coccomyces hiemalis Hig., leaf-spot. General. 

 Coryneum beijerinckii Oud., blight. Pacific coast, Idaho, Utah. 

 Exoascus cerasi (Fckl.) Sadeb., witches'-broom. North Atlantic Coast 



States; Tenn., Pacific coast. 

 E. pruni Fckl., pockets. Minn. 

 Fomes applanatus (Pers.) Wallr. (Ganoderma applanatum (Pers.) Pat.), 



white-streaked rot. N. Y. 

 Phyllosticta prunicola Sacc, leaf-spot. Wis., Minn. 

 Plowrightia morbosa (Schw.) Sacc, black-knot. East of Great Plains. 

 Podosphaera oxyacanthae (Ft.) D By., powdery mildew. General. 

 Polyporus sulphureus (Bull.) Fr., brown-checked wood-rot. 

 Schizophyllum commune Fr., sap-rot. Ohio, Minn., Nebr. 

 Sclerotinia fructicola (Wint.) Rehm (S. americana (Wormald) Norton and 



Ezekiel), brown-rot. General. 

 Stereum purpureum Fr., associated with silver-leaf. N. Y., Minn., Oreg. 

 Tranzschelia punctata (Pers.) Arth., rust. Miss., Mich., Nebr., Calif. 

 Valsa leucostoma (Pers.) Fr., die-back. Ohio, Mo. 

 Venturia cerasi Aderh., scab. Ind. 

 P. avium, sweet cherry. 



Alternaria sp., fruit-rot. Mich., Idaho. 



A. citri cerasi B. A. Rudolph, leaf-spot. Calif. 

 Armillaria mellea (Vahl) Quel., root-rot. Pacific coast. 



Bacillus amylovorus (Burr.) Trev. (Erwinia amylovora (Burr.) Corn. S. A. 



B.), blight. Wash. 

 Bacterium cerasi F. L. Griffin, bacterial gummosis. Oreg., Calif. 



B. pruni EFS. (Phytomonas pruni (EFS.) Com. S. A. B.), bacterial spot. 

 N. Y., Mich. 



Cercospora cerasella Sacc, leaf-spot. Ga., Ala. 



C. circumscissa Sacc, shot-hole. N. J., Pa., Ohio. 



Coccomyces hiemalis Hig., leaf-spot. N. Y., Pa., Md., Wash., Oreg. 



Coryneum beijerinckii Oud., blight. Pacific Northwest. 



Exoascus cerasi (Fckl.) Sadeb., witches'-broom. N. Y., Wash., Oreg., 



Alaska. 

 E. communis Sadeb., pockets. Iowa. 

 E. pruni Fckl., pockets. Okla. 

 Physalospora malorum (Pk.) Shear (P. cydoniae Am. Auct.) black-rot. East 



of Rocky Mts. 

 Plowrightia morbosa (Schw.) Sacc, black-knot. N. Y., Mich. 

 Podosphaera oxyacanthae (DC.) D Bv., powderv mildew. N. Y., Md., Iowa, 



Wash. 

 Polyporus lacteus Fr., heart-rot. Oreg. 

 Sclerotinia cinerea (Bon.) Schroet. (Monilia oregonensis Barss and Posey), 



blossom blight. Pacific coast. 

 S. fructicola (Wint.) Rehm (S. americana (Wormald) Norton and Ezekiel), 



brown-rot. General. 

 Tranzschelia punctata (Pers.) Arth., rust. Okla. 

 P. cerasus, sour cherry. 



Alternaria sp., fruit-rot. Mich. 



Bacterium pruni EFS. (Phytomonas pruni (EFS.) Com. S. A. B.), bacterial 



spot. IN. Y. 

 Cercospora cerasella Sacc, leaf-spot. Ala. 

 Coccomyces hiemalis Hig., leaf -spot. General east of Great Plains and north 



of Ky. and Va. 

 Exoascus cerasi (Fckl.) Sadeb., witches'-broom. Md., Wis. 

 E. communis Sadeb., pockets. Iowa. 

 Phyllosticta prunicola Sacc, leaf-spot. 



Podosphaera oxyacanthae (DC.) D By., powdery mildew. General. 

 Plowrightia morbosa (Schw.) Sacc, black-knot. N. Y., Pa., Md., Va., W. Va., 



N. C. 

 Sclerotinia fructicola (Wint.) Rehm (S. americana (Wormald) Norton and 



Ezekiel), brown-rot. N. J., Ind. 



