28 BULLETIN" 1366, U. S. DEPAKTMENT OF AGEICULTUKE 



BRASSICA— Continued. 



B. oleracea, cabbage — Continued. 



Bacterium campestre (,Pam.) EFS. (Phytomonas campestre (Pam.) Com. S. A„ 

 B.), black-rot. General. 



B. maculicolum McC. {Phytomonas maculicola (McC.) Com. S. A. B.),, 

 peppery leaf -spot. Conn., N. Y., Ala., Miss., La. 



Botrytis sp., gray-mold. N. Y., Calif., Alaska. 



Cercospora bloxami Berk, and Br., leaf-spot. Fla., Tex., 111. 



C. cruciferarum Ell. and Ev., leaf-spot. Ala. 

 Corticium vagum Berk, and Curt., wire-stem. General. 

 Erysiphe polygoni DC, powdery mildew. Md., Nebr,, Tex., Oreg. 

 Fusarium conglutinans Woll., yellows. General except New England. 

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

 Mycosphaerella brassicicola (Ft.) Lindau, ring-spot. Oreg., Wash., Calif. 

 Olpidium brassicae (Wor.) Dan., seedling blight. N. Y., Miss., Wis. 

 Ozonium omnivorum Shear (Phymatotrichum omnivorum (Shear) Dug.),.. 



root-rot. Tex. 

 Peronospora parasitica (Pers.) D By., downy mildew. General. 

 Phoma lingam (Tode) Desm., black-leg. General, especially in Eastern 



States. 

 Plasmodiophora brassicae Wor., clubroot. General. 

 Pythium debaryanum Hesse, damping-off . Conn., Pa. 

 Sclerotinia sclerotiorum (Lib.) Mass., drop, watery soft-rot. General. 

 Sclerotium rolfsii Sacc, stem-rot. Ala., Tex. 

 Malnutrition, nonpar. Southern States, Long Island, Mass. 

 Oedema, nonpar. N. Y. 

 Speck, undet. Frequent in stored cabbage. 

 Tipburn, nonpar. Ind. 

 B. oleracea acephala, kale, collards. 



Albugo Candida (Pers.) O. Kuntze, white-rust. Fla. 



Alternaria brassicae (Berk.) Sacc, black leaf-spot. Southern States. 



Bacterium campestre (Pam.) EFS. (Phytomonas campestre (Pam.) Com.. 



S. A. B.), black-rot. N. C, Ala. 

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

 Fusarium conglutinans Woll., yellows. N. Y., N. C, S. C, Ind., Calif. 

 Heterodera radicicola (Greef) Muell., root-knot. N. Y., S. C, Ala. 

 Mycosphaerella brassicicola (Fr.) Lindau, ring-spot. Wash., Calif. 

 Peronospora parasitica (Pers.) D By., downy mildew. South Atlantic 



States; Oreg. 

 Phoma lingam (Tode) Desm., black-leg. N. C, Ga. 

 Plasmodiophora brassicae Wor., clubroot. Conn., Va., N. C, Wash. 

 Sclerotium rolfsii Sacc, stem-rot. Miss. 

 B. oleracea botrytis, cauliflower. 



Alternaria brassicae (Berk.) Sacc, black leaf-spot. N. Y., Fla., La., Calif. 



A. herculea (Ell. and Mart.) J. A. Elliott, gray leaf-spot. Calif. 



Bacillus carotovorus L. R. Jones (Erwinia carotovora (Jones) Com. S. A. B.)^ 



soft-rot. Me., Mass., Va., Minn., Mo. 

 Bacterium, campestre (Pam.) EFS. {Phytomonas campestre (Pam.) Com.. 



S. A. B.), black-rot. General, especially in States east of Miss. River. 



B. maculicolum McC. (Phytomonas maculicola (McC.) Com. S. A. B.),. 

 peppery leaf-spot. Conn., N. Y., Va., Ky., Fla. 



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

 Fusarium conglutinans Woll., yellows. Del., Ind., Calif. 

 Mycosphaerella brassicicola (Fr.) Lindau, ring-spot. Mass., Oreg., Calif. 

 Peronospora parasitica (Pers.) D By., downy mildew. N. Y., Va., Mo.,. 



Calif. 

 Phoma lingam (Tode) Desm., black-leg. N. Y. 

 Plasmodiophora brassicae Wor., clubroot. East of Miss. River and north of 



Va. and Ky. 

 Pythium sp., damping-off. Ohio, Oreg. 

 Sclerotinia sclerotiorum (Lib.) Mass., drop, watery soft-rot. Va., Miss., 



La., Calif. 





