Host Plants - Westcott's Plant Disease - page 624

R UST . Aecidium subsimulans, AZ; Puccinia
ballotaeflorae (II, III), TX; 0, I unknown;
P. caulicola (0, I, II, III), IA to TX, NM;
P. farinacea (0, I, II, III), AL, AZ, KS, MS,
MO, NE, OK, TX; P. salviicola (0, I, II, III),
FL, TX; P. vertisepta (0, I, III), AZ, NM; P.
melliflora (I, III), CA.
S TEM

St. Andrews Cross, St. Peterswort
(Ascyrum)

L EAF S POT . Cladosporium gloeosporioides, AL.
R UST . Uromyces triquetrus (0, I, II, III), MS, NJ,
TX.

S POT , Lesion; Wilt. Sclerotinia

sclerotiorum, ND.
V IRUS . Tomato Spotted Wilt. St. Augustinegrass (Stenotaphrum)

R OT , Root. Gaeumannomyces graminis var.
graminis, FL, TX.
V IRUS . Panicum Mosaic, AR. Sage-Brush (Artemisia)

B LIGHT , Gray Mold. Botrytis cinerea, AK.
B LIGHT , Stem. Sclerotium sp., OR.
C ANKER , Stem Gall, Black Knot. Syncarpella
tumefaciens, CA, MT, NV.
D ODDER . Cuscuta sp., TX.
D OWNY M ILDEW . Peronospora leptosperma,
CA, IA, KS, ND, WI.
L EAF S POT . Cercospora ferruginea, WI; C.
olivacea, NY; Cylindrosporium artemisiae,
WA, WI; Heterosporium sp., AK;
Phyllosticta raui, MT; Ramularia
artemisiae, NY, WI; Septoria artemisiae,
WA.
N EMATODE , Root Knot. Meloidogyne sp., AL.
P OWDERY M ILDEW . Golovinomyces
cichoracearum, WI to NM, CA, WA.
R OT , Root. Phymatotrichum omnivorum, TX.
R UST . Puccinia atrofusca, IA to TX, CA, OR; II,
III on Carex ; P. millefolii (III), ND to TX, AK,
CA, WA; P. tanaceti (0, I, II, III), WI to TX,
CA, WA; 0, I, II, III on Tanacetum and II on
chrysanthemum;

St. Johnswort (Hypericum)

B LACK K NOT . Gibberidea heliopsidis, MD.
B LIGHT , Leaf. Rosellinia (Dematophora)
necatrix; Diploceras hypericum (stem and
leaf), OR.
B LIGHT , Southern. Sclerotium rolfsii, SC.
G ALL , Stem. Sphaeropsis tumefaciens, FL.
L EAF S POT . Cercospora hyperici, IL;
Cladosporium gloeosporioides, AL, NJ,
NY, WI.
N EMATODE , Root Knot. Meloidogyne spp.
P OWDERY M ILDEW . Golovinomyces

cichoracearum.
R UST . Melampsora hypericorum (II), MT;
Uromyces triquetrus (0, I, II, III), ME to
AL, and IA, TX, WI.

Salal (Gaultheria shallon)

Uromyces oblongisporus

(III), WY. A NTHRACNOSE . Colletotrichum acutatum,

British Columbia, Canada.
B LACK M ILDEW . Meliola sp.
L EAF S POT . Dasyscyphus gaultheriae,CA,OR,
WA; Mycosphaerella gaultheriae,P ific
Coast, AK; Pestalopezia brunneo-pruinosa,
CA, OR, WA; Phyllosticta gaultheriae, general.
L EAF , Stem Lesions. Phoma exigua, British
Columbia, Canada.
P OWDERY M ILDEW . Microsphaera alni, OR.
S POT A NTHRACNOSE . Elsino¨ ledi, OR, WA.

Sainfoin (Onobrychis)

D AMPING -O FF . Rhizoctonia solani, TX; Sclero-
tium rolfsii, TX.
N EMATODE , Root Knot. Meloidogyne hapla, WY.
R OT , Stem. Rhizoctonia solani, TX; Sclerotium
rolfsii, TX.