

LIST OF DISEASES OF ECONOMIC PLANTS 105 



VACCTNIUM. 



Vaccinium spp., blueberry. 



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



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

 Calyptospora columnaris (Alb. and Schw.) Kuehn, stem-rust. Frequent in 



the Northern States and Pacific coast. 

 Exobasidium vaccinii (Fckl.) Wor., red leaf -spot. General. 

 Microsphaera alni vaccinii (Schw.) Salm., powdery mildew. North Atlantic 



States; Ohio, 111., Wash. 

 Pucciniastrum myrtilli (Schum.) Arth., leaf-rust. General, especially in 



Northern States. 

 Ramularia effusa Pk., leaf -spot. Wis. 

 Rhytisma vaccinii (Schw.) Fr., tar-spot. Widespread. 

 Sclerotinia vaccinii-corymbosi J. M. Reade, fruit-rot, twig-blight. North 



Atlantic States; Ind., Mich. 

 Septoria albopunctata Cke., leaf-spot. S. C. 

 S. difformis Cke. and Pk., leaf-spot. N. Y. 

 Venturia compactd Pk. Me., Mass., La., Wis. 

 V. macrocarpon, cranberry. 



Acanthorhyncus vaccinii Shear, blotch-rot. Me., Mass., N. J., W. Va., N. C, 



Mich., Wis., Wash. 

 Botrytis cinerea Auct., gray-mold rot. Wash. 

 Ceuthospora lunata Shear, black-rot. Mass., N. J., Wash. 

 Exobasidium oxycocci Rostr., rose-bloom. Mass., Wash., Oreg. 

 E. vaccinii (Fckl.) Wor., red leaf -spot. Atlantic Coast States; W. Va., Wis., 



Minn., Wash. 

 Fusicoccum putrefaciens Shear, end-rot. Me., Mass., N. J., N. C, Mich., 



Wis., Wash., Oreg. 

 Glomerella cingulaia vaccinii Shear, bitter-rot. Mass., N. J., N. C, Wis., 



Wash., Oreg. 

 Guignardia vaccinii Shear, early-rot. Mass., Conn., N. Y., N. J., Va., 



N. C, Wis., Wash. 

 Leptothyrium oxycocci Shear. Mass. 



Microsphaera alni vaccinii (Schw.) Salm., powdery mildew.. N. J., Ohio. 

 Phomopsis sp., fruit-rot. Wash. 

 Phyllosticta putrefaciens Shear, rot. N. J. 

 Pucciniastrum myrtilli (Schum.) Arth., rust. Wash. 

 Sclerotinia oxycocci Wor., hard-rot and tip-blight. Wis., Wash. 

 Synchytrium vaccinii F. Thomas, red-gall. N. J. 

 Venturia compacta Pk. Me., Mass., N. Y., N. J., Wis., Wash. 

 False-blossom, undet. Mass., N. J., Wis., Wash., Oreg. 



VIBURNUM. 



Viburnum spp., viburnum. 

 Botrytis sp., blight. Wash. 



Cercospora varia Pk., leaf-spot. Mass., N. Y., Ind., 111., Iowa, Colo. 

 Coleosporium viburni Arth., rust. Md., Wis., Iowa. 



Corticium stevensii Burt (Hypochnus ochroleucus F. Noack) , leaf -blight. N. C. 

 Helminthosporium beaumonti Sacc, leaf-spot. Ala. 

 Render sonia foliorum Fckl., leaf -spot. Tex. 

 Hymenochaete agglutinans Ell. Pa. 



Microsphaera alni (Wallr.) Wint., powdery mildew. Widespread. 

 Phyllosticta lantanoidis Pk., leaf-spot. N. Y. 

 P. punctata Ell. and Dearn., leaf -spot. Wis. 

 P. tineola Sacc, leaf -spot. Wis. 



Plasmopara viburni Pk., downy mildew. N. Y., W. Va., Ga., Ala., Minn. 

 Puccinia linkii J. F. Klotzsch, rust. Mich., Idaho, Mont., Wash. 



VICIA. 



V. faba, broadbean. 

 Ascochyta pisi Lib. (Mycosphaerella pinodes (Berk, and Blox.) R. E. Stone), 



leaf -spot. Calif. 

 Corticium vagum Berk, and Curt., stem-rot. Mich., Wash. 

 Fusarium culmorum W. G. Smith, root-rot. Utah. 

 F. trichothecioides Woll., root-rot. Utah. 

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

 Uromyces fabae (Pers.) D By., rust. Ala., La. 



