LIST OF DISEASES OF ECONOMIC PLANTS 57 



JUNIPERUS— Continued. 



/. virginiana, redcedar — Continued. 



G. germinate (Schw.) Kern, rust. General east of Great Plains. 



G. globosum Farl., rust. General east of Great Plains. 



G. juniperi-virginianae Schw., rust. General east of Great Plains. 



G. juvenescens Kern, rust. Wis., Nebr. 



G. nidus-avis Thax., rust. General east of Miss. River. 



G. trachysorum Kern, rust. S. C, Fla., Miss. 



Phomopsis juniperovora G. Hahn, nursery blight. N. Y. to Kans. 



Poria purpurea Fr., brown laminated rot. Iowa. 



KALMIA. 



K. latifolia, mountain-laurel. 



Cercospora kalmiae Ell. and Ev., leaf-spot. Conn., Pa., W. Va. 



C. sparsa Cke., leaf-spot. S. C, Miss. 



Mycosphaerella colorata (Pk.) Earle, leaf-spot. N. Y., Pa., Ala. 



Pestaiozzia kalmicola Ell. and Ev., leaf-spot. N. J., Del. 



Phomopsis kalmiae Enlows, leaf-blight. D. C. 



Phyllosticta kalmicola (Schw.) Ell. and Ev., leaf -spot. N. Y., N. J., Pa., 



Del., Md., Miss. 

 P. latifolia Ell. and Ev., leaf-spot. N. J., Del., Miss. 

 Septoria angustifolia Ell. and Ev., leaf -spot. Atlantic Coast States; Ohio. 

 Venturia kalmiae Pk., leaf -spot. N. Y. 



KERRIA. 



K. japonica, kerria. 



Coccomyces kerriae V. B. Stewart, twig and leaf blight. Conn., Del., Ala., Ky. 

 Cylindrosporium sp., leaf-spot. Md. 

 Septoria sp., leaf -spot. N. J., Md. 



LACTUCA. 



L. sativa, lettuce. 



Alternaria sp., leaf-spot. Ohio, Fla., La., Wash. 



Aplanobacter rhizoctonia R. C. Thomas, bacterial rosette. Ohio. 



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



soft-rot. General. 

 Bacterium marginale N. A. Brown {Phytomonas marginale (Brown) Com. S. 



A. B.), leaf -spot. N. J., Kans. 

 B. viridilividum N. A. Brown {Phytomonas viridilivida (Brown) Com. S. A, 



B.), lettuce rot. Va., La., Mich. 

 J5. vitians N. A. Brown {Phytomonas vitians (Brown) Com. S. A. B.), bacterial 



wilt. N. J., Va., S. C, N. Mex. 

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

 Bremia lactucae E. Regel, downy mildew. General. 

 Corticium vagum Berk, and Curt., bottom rot. General. 

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

 Macrosporium cladosporioides Desm., leaf-spot. Fla. 

 Marssonina panattoniana (Berl.) Magn., anthracnose. N. Y., N. C, Ohio, 



Mich., Kans., Utah, Oreg., Wash. 

 Ozonium omnivorum Shear {Phymatotrichum omnivorum (Shear) Dug.), root- 

 rot. Tex., Ariz. 

 Puccinia hieraciata (Schw.) Jack., rust. Minn., Ind. 

 Pythium debaryanum Hesse, damping-off. Conn., N. Y., Pa., Fla., Ohio, 



Mich. 

 Sclerotinia minor I. .C. Jagger, drop, pink-rot. Mass., N. Y., Pa., Fla. 

 S. sclerotiorum (Lib.) Mass., drop. General. 

 Sclerotium rolfsii Sacc, stem-rot. Fla. 

 Septoria lactucae Pass., leaf-spot. East of Great Plains. 

 Mosaic, undet. Conn., N. Y., Pa., S. C, Fla., Minn. 

 Rio Grande disease (rabbit-ear, white-heart), undet. N. Y., Miss., La., 



Tex., 111. 

 Tipburn, nonpar. Widespread. 



LAGERSTROEMIA. 



L. indica, crapemyrtle. 



Cercospora lythracearum Heald and Wolf, leaf -spot. Tex. 

 Phyllosticta lagerstroemiae Ell. and Ev., leaf-spot. La., Tex. 

 Powdery mildew, undet. S. C, Ga., Ala., La. 



