Host Plants - Westcott's Plant Disease - page 577

C ANKER , Bark. Aleurodiscus oakesii, NY to IL,
CA, IA; A. candidus; A. acerinus; A. griseo-
canus; Dichaena quercina, NJ.
C ANKER , Basal. Cryphonectria parasitica, PA.
C ANKER , Bleeding. Phytophthora cactorum, FL,
MA, NY; P. cinnamomi, FL.
C ANKER , Branch. Endothia gyrosa, VA.
C ANKER , Branch; Decline; Dieback.
Botryodiplodia gallae, MI; Cephalosporium
sp.; Hyalodendron sp.
C ANKER , Bot. Diplodia corticola, CA.
C ANKER , Chestnut. Endothia parasitica, MS,
SC, VA.
C ANKER , Felt Fungus. Septobasidium spp., NC to
FL, LA.
C ANKER , Trunk. Nectria galligena; Strumella
coryneoides ( Urnula craterium ); Diplodia
corticola, CA.
C ANKER , Twig. Cytospora chrysosperma, NJ,
RI; Endothia parasitica, occasional;
Dothiorella quercina, MD, VA; Fusarium
solani; Physalospora glandicola, MD;
P. obtusa, MN, VA; P. rhodina, VA;
Pseudovalsa longipes; Pyrenochaete
venuta; Coryneum japonicum, FL.
D ECLINE . Hypoxylon atropunctatum,
H. punctulatum, H. mediterraneum, VA;
Phytophthora quercina, P. cambivora, MO.
D ODDER . Cuscuta spp., occasional

CA.; P. tomentosum, TX; Psittacanthus
macrantherus, Sinaloa, Mexico.
M OLD , Leaf. Cladosporium brevipes;

C. herbarum.
N EMATODE , Dagger. Xiphinema americanum,
Southeast.
N EMATODE , Ring. Criconemoides annulatum;
C. teres; Hemicriconemoides biformis.
N EMATODE , Root. Hoplolaimus coronatus;
Pratylenchus sp.; Meloidogyne sp.
N ONPARASITIC Chlorosis. Iron deficiency, espe-
cially in pin oaks.
P ARASITIC L ICHEN . Strigula elegans and

S. complanata, Southern U.S., LA.
P OWDERY M ILDEW . Erysiphe trina, witches'
broom, on live oak, CA; Microsphaera alni,
widespread; Phyllactinia corylea, wide-
spread; Sphaerotheca lanestris, “brown mil-
dew,” serious on coast live oak, AL, CA, MS,
NC; Saccardia quercina, AZ, GA.
R OT , Heart. Daedalea quercina, widespread,
other species; Fistulina hepatica; Fomes
spp.; Hericium erinaceous; Polyporus spp.;
Stereum spp.
R OT , Heart. Phlebia chrysocrea, eastern U.S.
(PA to FL) and WI to MS.
R OT , Root. Armillaria mellea, widespread;
Clitocybe tabescens, FL, MO, OK; C.
olearia, CA; Corticium galactinum and
other spp.; Phytophthora cinnamomi,of
seedlings.
R OT ,

in forest

nurseries.
L EAF B LISTER . Taphrina caerulescens, Northeast
to North central and Gulf states; also CA, CO,
GA, UT, WY.
L EAF S POT . Actinopelte dryina,o c iona;
Acantharia echinata, l , nli e
oak; Cercospora macrochaeta, ;
Cylindrosporium microspilum, C. kelloggii,
CA; Ciborinia ( Sclerotinia ) candolleana;
C. hirtella; Dothiorella phomiformis,wide-
spread; Gloeosporium septorioides;
Marssonina martini, general; Leptothyrella
californicum,onliveoak,CA;Monochaetia
desmazierii, widespread; Mycosphaerella sp;
Phyllosticta spp.; Septogloeum defolians,
CA; S. querceum,W;Septoria spp.;
Venturia orbicula, NY to VA, OH.
M ISTLETOE . Phoradendron serotinum
(flavescens), NC to FL, TX; P. villosum,

Root and Collar. Phytophthora

cinnamomi, CA.
R OT , Wood. Daldinia concentrica;
D. vernicosa; Hypoxylon atropunctatum;
Lentinus tigrinus; Linzites betulina and
other species; Schizophyllum commune;
Steccherinum ochraceum.
R UST . Cronartium quercuum ( C. cerebrum ) II,
III, widespread; 0, I on pines; C. fusiforme
(II, III), southern states; C. strobilinum (II),
AR, FL, IL, IA, KS, MS, MO; 0, I on long-leaf
pines; C. conigenum (II, III), AZ; 0, I on pine
cones.
R UST , Fusiform. Cronartium fusiforme, GA.
S POT A NTHRACNOSE . Elsino¨ quercus-falcatae,
on southern red oak, GA, NC; E. quercicola,
FL.