LIST OF DISEASES OF ECONOMIC PLANTS 21 



AMYGDALUS— Continued. 

 A. persica, peach — Continued. 



Helminthosporium carpophilum LeV., pustular spot. N. Y., Ohio, Mich., 



Utah. 

 Heterodera radicicola (Greef) Muell., root-knot. South Atlantic and Gulf 



States; Calif. 

 Lenzites saepiaria Fr., heart-rot. Oreg. 

 Monilia sp., western brown-rot. Oreg. 

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



root-rot. Tex., N. Mex., Ariz. 

 Phoma persicae Sacc, stem canker. Mass., Conn., Pa., Del., Md., Va., 



Ohio, Mich. 

 Phyllosticta circumscissa Cke., leaf-spot. N. Y., N. J., Wash. 

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



Del., Ind. 

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

 Polyporus lacteus Fr., sap-rot and heart-rot. 



Pythiacysiis citrophthora E. H. and R. E. Smith, die-back. Calif. 

 Rhizopus nigricans Ehr., black-mold rot. Conn., Del., Ga., Fla., Ark., 111., 



Ind., Kans. 

 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. 

 Sclerotium rolfsii Sacc, stem-rot (of seedlings). La. 

 Sphaerotheca pannosa (Wallr.) Lev., powdery mildew. General. 

 Stereum purpureum Pers., silver leaf. N. Y., Md. 

 Trametes carnea (Nees) Cke., wood-rot. Oreg. 

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

 Valsa leucostoma (Pers.) Fr., die-back. General. 

 Verticillium alboatrum Reinke and Berth., wilt. N. Y., N. J. 

 Chlorosis, nonpar. Southwest. 

 Gummosis, various causes. General. 



Little peach, undet. East of Miss. River, especially Middle Atlantic States. 

 Phoney peach, undet. Central and southern Ga. 

 Rosette, undet. Tenn., Fla., S. C, Ga., Ala., Miss., La., Okla., Ark., Mo., 



Kans. 

 Yellows, nonpar. East of Miss. River and north of Gulf States. 

 A. persica nectarina, nectarine. 



Cladosporium carpophilum Thuem., scab. Conn., N. Y., 111. 



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



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



brown-rot. Conn., N. Y. 



ANANAS. 



A. sativus, pineapple. 



Spegazzinia ornata Sacc. Fla. 



Thielaviopsis paradoxa (DeSeyn.) Hoehn., soft-rot. Fla. 



Red wilt, undet. Fla. 



ANCHUSA. 



A. capensis, Cape bugloss. 



Puccinia dispersa Eriks., rust. Ind. 

 A. officinalis, common bugloss. 



Puccinia dispersa Eriks., rust. Ind. 

 ANETHUM. 



A. graveolens, dill. 



Cercosporella anethi Sacc, leaf-spot. N. Dak. 

 ANNONA. 



A. cherimola, cherimoya. 

 Gloeosporium sp., anthracnose. Fla. 

 Uredo cherimoliae Lagh., rust. Fla. 

 A. squamosa, sugar-apple. 



Uredo cherimoliae Lagh., rust. Fla. 



