Host Plants - Westcott's Plant Disease - page 536

C ANKER , Stem and Branch. Kaskaskia gleditsiae,
IL; Tubercularia ulmea, ND; Nectria
cinnabarina,MN;Thyronectria austro-
americana, KS, NC.
C ANKER ; Wilt. Thyronectria austro-americana,
CA, MA; T. denigrata, MA to SC, CA, LA,
NE.
L EAF S POT . Cercospora condensata, IL to KS,
NE, WI.
L EAF S POT , Tar. Linospora gleditsiae, SC, NC to
NE, TX.
M ISTLETOE .

Leptothyrium periclymeni, widespread;
Marssonina lonicerae, CA; Mycosphaerella
clymenia, VA; Septoria sambucina, MT,
WI; S. xylostei, WI.
N EMATODE , Root Knot. Meloidogyne sp.
P OWDERY M ILDEW . Microsphaera alni, general;
Erysiphe polygoni, CA, WY.
R OT , Collar, Wood. Fomes spp.
R OT , Root. Armillaria mellea, NJ;

Phymatotrichum omnivorum, TX.
R UST . Puccinia festucae (I), IL, IA.
V IRUS . Mosaic, MD; Tobacco Streak,MD. Phoradendron serotinum

(flavescens), IN, TX.
P OWDERY M ILDEW . Microsphaera

alni,

Hop (Humulus)

widespread.
R OT ,Crown.Phytophthora citrophthora,CA.
R OT , Root. Phymatotrichum omnivorum, OK,
TX; Xylaria mali, VA.
R OT , Wood. Fomes spp., widespread; Daedalea
ambigua; D. elegans; Ganoderma curtisii
and G.

A NTHRACNOSE ; Leaf Spot. Colletotrichum sp.;
Glomerella cingulata, IN, KS, MD, NY,
OR, WA, WI.
B ACTERIAL Crown Gall. Agrobacterium
tumefaciens, CA, OK, OR, WA.
B LIGHT , Cone Tip. Fusarium sambucinum,
F. avenaceum, OR.
D OWNY M ILDEW . Pseudoperonospora humuli,
CA, NY, OR, WA,WI, Argentina.
L EAF S POT . Cercospora sp., NE;
Cylindrosporium humuli, NY to NC, IA, WI;
Phyllosticta decidua,IA,W ;P. humuli,
IA, MA, MI; Mycosphaerella erysiphina,
CA; Septoria humuli,NH;S. lupulina,KS.
N EMATODE , Root Knot. Meloidogyne sp., CA.
P OWDERY M ILDEW . Golovinomyces
cichoracearum; Sphaerotheca macularis,
general.
R OT , Root. Armillaria mellea, OR.
R UST . Aecidium sp., WA.
S OOTY M OLD . Fumago vagans, CA, OR, WA.
V IRUS . Hop Mosaic, NY, OR, WA; Hop Latent;
Hop American Latent,WA.
W ILT . Verticillium albo-atrum, ME, OH, OR, WI.

lucidum; Polyporus spp.;

Schizophyllum commune.
R UST . Ravenelia opaca (III), IL.
V IRUS . Robinia Brooming, KY, OH.

Honey Plant, Bitterbush (Picramnia)

S POT , Tar. Phyllachora domingensis, FL.

Honeysuckle (Lonicera)

B ACTERIAL Crown Gall. Agrobacterium

tumefaciens, CT.
B LIGHT , Gray Mold. Botrytis cinerea, AK, CT.
B ACTERIAL Hairy Root. Agrobacterium

rhizogenes, central states.
B LIGHT , Leaf. Herpobasidium deformans, CT,
IA, NY, WI.
B LIGHT , Sudden Oak Death. Phytophthora
ramorum, CA.
B LIGHT , Thread. Pellicularia koleroga, LA.
B LIGHT , Twig. Phoma mariae, CT, MA, NY.
L EAF S POT . Cercospora antipus, MI to MT, TX;
C. varia, TX; Guignardia lonicerae, CA;
Kabatia lonicerae, CA; Lasiobotrys affinis,
CA;

Hop-Hornbeam, Ironwood (Ostrya)

C ANKER . Nectria sp., NY; Strumella

coryneoidea, MD, PA, WV.
C ANKER , Bark Patch. Aleurodiscus spp.; Felt
Fungus, Septobasidium spp. L. lonicerae, Black Spot, OR;