Host Plants - Westcott's Plant Disease - page 625

Salpiglossis (Painted-Tongue) Salt Bush (Atriplex)

B ACTERIAL Canker, Vascular. Clavibacter D OWNY M ILDEW . Peronospora farinosa,MT,TX.

G ALL , Leaf,

michiganense,WY.
B ACTERIAL , MLO. California Aster Yellows,
CA.
N EMATODE , Lesion. Pratylenchus pratensis, NY.
N EMATODE , Root Knot. Meloidogyne sp., NY.
W ILT . Fusarium sp., WA; Verticillium albo-
atrum, NY.

Stem. Urophlyctis pulposa,

ND, TX.
L EAF S POT . Cercospora dubia, widespread;
Stagonospora atriplicis, KS, NE, NJ, NY, PA.
N EMATODE , Root Knot. Meloidogyne sp., CA;
root gall, Heterodera schachtii, UT.
R UST . Puccinia aristidae (0, I); II, III on grasses;
Uromyces shearianus (0, I, III).
V IRUS . Beet Curly Top; Iris Yellow Spot, UT.

Salsify (Tragopogon)

Saltgrass (Distichlis)

B ACTERIAL , MLO. California Aster Yellows,
CA; Aster Yellows, MD, NY, PA, WI.
B ACTERIAL Soft Rot. Erwinia carotovora,
CT, TX.
B LIGHT , Leaf. Sporodesmium scorzonerae, AL,
MD, NY, PA, VA, WV.
B LIGHT , Southern. Sclerotium rolfsii, TX.
L EAF S POT . Cercospora tragopogonis, MT, OK;
Stemphylium botryosum, NY; Alternaria
tenuis.
N EMATODE , Leaf and Stem. Ditylenchus dipsaci,
CA.
N EMATODE , Root Knot. Meloidogyne sp., NY to
AL, TX, WA.
P OWDERY

B ROWN S TRIPE . Bipolaris heveae, CO.

Salvinia (Aquatic Fern)

L EAF S POT , Water-Soaked Lesions. Rhizoctonia
solani, FL.

Sanchezia

R OT , Mushroom Root. Clitocybe tabescens, FL.

M ILDEW . Golovinomyces

Sand-Myrtle (Leiophyllum)

cichoracearum, general.
R OT , Root. Phymatotrichum omnivorum, AZ,
TX; Rhizoctonia solani, TX, WA.
R OT , Stem, Crown. Sclerotinia intermedia, IL;
S. sclerotiorum, IL.
V IRUS . Beet Curly Top; Lettuce Mosaic,NY.
W HITE R UST . Albugo tragopogonis, CA.
W ILT . Verticillium albo-atrum, NY.

G ALL , Leaf. Exobasidium vaccinii, NJ, NC.

Sand-Verbena (Abronia)

D OWNY M ILDEW . Peronospora oxybaphi, TX.
L EAF S POT . Heterosporium abroniae, CA, TX.
R UST . Puccinia aristidae, AZ, CA, CO, NM; II,
III on grasses.

Salsify, Black (Scorzonera)

Sandvine (Ampelanus) B ACTERIAL , MLO. California Aster Yellows,

CA.
N EMATODE , Root Knot. Meloidogyne sp., FL.
W HITE R UST . Albugo tragopogonis, CA.

B LACK M ILDEW . Meliola bidentata, NC.
D OWNY M ILDEW . Plasmopara gonolobi, SC.