Host Plants - Westcott's Plant Disease - page 511

P OWDERY M ILDEW . Golovinomyces cynoglossi
( Erysiphe cynoglossi ), WA.
R OT , Crown. Sclerotinia sclerotiorum, IL, WA.
R UST . Puccinia eatoniae var. myosotidis (0, I),
IL, IN, MS, MO, NC, WI; II, III on
Sphenopholis ; P. mertensiae (III), CO.
V IRUS . Chlorosis, GA. Perhaps eastern strain of
Aster Yellows.

Fittonia

B LIGHT , Leaf. Rhizoctonia sp., OH.
L EAF S POT . Myrothecium roridum, FL.

Flax, Flowering (Linum)

D AMPING -O FF . Rhizoctonia solani, IL.
N EMATODE , Root Knot. Meloidogyne sp., CA.
R OT , Stem. Sclerotinia sclerotiorum, CA. Forsythia (Goldenbells)

A NTHRACNOSE . Gloeosporium sp., OK.
B ACTERIAL

Florida Pusley (Richardia scaba)

Grown Gall. Agrobacterium

tumefaciens, MS, NJ, TX.
B LIGHT , Cane. Botryosphaeria ribis.
B LIGHT , Southern. Sclerotium rolfsii, GA.
B LIGHT , Twig. Sclerotinia sclerotiorum, NC;
Phytophthora nicotianae, VA.
C ANKER , Stem Gall. Phomopsis sp., KY.
L EAF S POT . Alternaria sp.,

V IRUS . Tomato Spotted Wilt, GA.

Foam-Flower (Tiarella)

P OWDERY M ILDEW . Sphaerotheca macularis,
AK.
R UST . Puccinia heucherae (III), CT to NC, AK,
CA, CO, ID, MI, MT, OR, TN, WA, WI.

IA; Phyllosticta

discincola,MD.
N EMATODE , Lesion. Pratylenchus vulnus.
N EMATODE , Root Knot. Meloidogyne sp., TX;
M. hapla; M. incognitaacrita.
R OT , Root. Phymatotrichum omnivorum,TX.
V IRUS . Tobacco Ring Spot, MD.

Forestiera (Swamp-Privet)

M ISTLETOE . Phoradendron serotinum

(flavescens), TX.
P OWDERY M ILDEW . Microsphaera alni, IL, TX.
R OT , Root. Phymatotrichum omnivorum, TX.
R UST . Coleosporium minutum (II, III), FL, TX;
0, I on pine; Puccinia peridermiospora (0, I),
FL, TX; II, III on marsh grass.

Fouquieria (Ocotillo, Candlewood)

R OT , Root. Phymatotrichum omnivorum, TX.
R UST . Aecidium cannonii (0, I), AZ.

Forget-Me-Not (Myosotis) Four-O'Clock (Mirabilis)

B ACTERIAL , MLO. California Aster Yellows,
CA.
B LIGHT , Gray Mold.

B ACTERIAL , Blight. Xanthomonas campestris
pv. campestris, CA.
L EAF S POT . Cercospora mirabilis, TX.
N EMATODE , Root Knot. Meloidogyne sp., FL.
R OT , Root. Phymatotrichum omnivorum, TX.
R UST . Aecidium mirabilis

Botrytis cinerea,

cosmopolitan.
D OWNY M ILDEW . Peronospora myosotidis, IL,
MI, MS, WI.
L EAF S POT . Stemphylium sp., NY.

(0, I), AZ, NM;

Puccinia aristidae (0, I), AZ.