20 BULLETIN" 1366, TJ. S. DEPABTMENT OF AGEICULTUBE 



AMPEIOPSIS— Continued. 



A. quinquefolia, Virginia creeper. 



Cercospora ampelopsidis Pk., leaf -spot. General east of Great Plains. 



C. psedericola L. R. Tehon, leaf-spot. 111. 



C. pustula Cke., leaf -spot. Occurs in widely scattered States east of Great 



Plains. 

 Cladosporium herbarum Lk., die-back. N. J. 

 Guignardia bidwellii (Ell.) Viala and Ravaz, black-rot. General east of Great 



Plains. 

 Phyllosticta viticola (Berk, and Curt.) Thuem., leaf-spot. General. 

 Plasmopara viticola (Berk, and Curt.) Berl. and DeToni, downy mildew. 



Me., Ala., Wis., Iowa. 

 Septogloeum ampelopsidis (Ell. and Ev.) Sacc, leaf-spot. Ill , Wis., Iowa, 



Nebr. 

 Septoria ampelopsidis Ell., leaf-spot. Nebr. 

 Uncinula necator (Schw.) Burr., powdery mildew. General east of Great 



Plains. 

 A. tricuspidata, *Boston ivy, Japanese creeper. 

 Cladosporium sp., die-back. N. J. 

 Guignardia bidwellii (Ell.) Viala and Ravaz, black-rot. Atlantic Coast 



States; Tex. 



AMYGDALUS. 



A. communis, almond. 



Armillaria mellea (Vahl) Quel., root-rot. Calif. 



Bacillus amylovorus (Burr.) Trev. (Erwinia amylovora (Burr.) Com. S. A. B.), 



blight. Mass. 

 Bacterium tumefaciens EFS. and Town. (Phytomonas tumefaciens (EFS. and 



Town.) Com. S. A. B.), crown-gall. Ariz., Calif. 

 Cercospora circumscissa Sacc, shot-hole. Oreg., Calif. 

 Cladosporium carpophilum Thuem., scab. Calif. 

 Coryneum beijerinckii Oud., blight. Oreg., Calif. 

 Cyphella marginata McAlp., die-back. Oreg. 

 Gloeosporium sp., fruit-spot and twig-spot. Calif. 

 Heterodera radicicola (Greef) Muell., root-knot. Ariz. 



Pythiacystis citrophthora E. H. and R. E. Smith, brown-rot, die-back. Calif. 

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



Ezekiel), brown-rot. Calif. 

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

 A . persica, peach. 

 Armillaria mellea (Vahl) Quel., root-rot. Miss., Tex., Ark., Ind., Oreg., 



Calif., Alaska. 

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

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



General east of Rocky Mts. 



B. tumefaciens EFS. and Town. (Phytomonas tumefaciens (EFS. and 

 Town.) Com. S. A. B.), crown-gall. General. 



Botrytis cinerea Auct., fruit-rot. Calif. 

 Cephalothecium roseum Cda., pink-rot. Md., 111., Calif. 

 Cercospora circumscissa Sacc, shot-hole. General. 



C. consobrina Ell. and Ev., leaf -spot. La., 111. 

 Cercosporella persicae Sacc, frosty mildew. General. 

 Choanephora persicaria E. D. Eddy, fruit-rot. In storage. 

 Cladosporium carpophilum Thuem., scab. General. 



Clitocybe monadelpha (Morgan) Sacc, root-rot. Fla., Ark., Mo. 

 Comandra pallida DC, bastard toadflax. Wash. 



Coryneum beijerinckii Oud., blight. General, especially in Western States. 

 Cyphella marginata McAlp., die-back. Oreg. 

 Diplodia natalensis Ev., gumming. Fla. 

 Exoascus deformans (Berk.) Fckl., leaf-curl. General. 

 Fomes pinicola Fr v brown crumbly rot. Oreg. 

 F. roseus (Alb. and Schw.) Fr., brown pocket rot. Va. 

 Fusarium spp., fruit-rot. Calif. 

 F. gemmiperda Aderh., bud-rot. Ga. 



Glomerella cingulata (Ston.) Spauld. and Schrenk, bitter-rot. Fla., Ark., 

 Ohio. 



