Host Plants - Westcott's Plant Disease - page 667

Water Shield (Brasenia) Wheat (Triticum) Cereal

L EAF S POT . Dichotomophthoropsis B LIGHT , Heat. Fusarium tricinctum,

nymphaearum, MN. Argentina.

B LIGHT , Seedling. Sclerotium rolfsii, OK.
L EAF S POT , Tan. Pyrenophora tritici-repentis,
KS, Pacific Northwest.
N EMATODE , Cereal Cyst. Heterodera filipjevi,
OR, Pacific Northwest.
P OWDERY M ILDEW . Blumeria graminis f. sp.
tritici, NC, WI; Erysiphe graminis, Septoria
tritici, Stagonospora, WI.
R OT , Damping-Off, Stunting. Pythium
abappressorium,WA;Arthrivium sacchari,
(Durum Wheat), Saskatchewan, Canada.
R OT , Root. Phoma sclerotioides,MN.
R UST . Puccinia triticina,

Watsonia

R OT , Root. Armillaria mellea, CA.
V IRUS . Iris Mosaic, CA.

Wax-Myrtle, Candleberry (Myrica
cerifera)

B LACK M ILDEW . Irene calostroma, Gulf
states; Irenina manca, MS; Meliola manca,
FL.
B LIGHT , Seedling. Rhizoctonia solani, NJ.
D ODDER . Cuscuta compacta, FL.
L EAF S POT . Cercospora dispersa, NJ;
Colletotrichum acutatum, FL; Phyllosticta
myricae, NJ to FL, TX; Septoria myricae,
NJ.
N EMATODE , Ring. Hemicriconemoides wessoni,
FL.
P ARASITIC

(Durum Wheat),

Mexico.
R UST , Stripe. Puccinia striiformis f. sp. tritici,
FL.
R UST , Wheat Leaf. Puccinia triticina,

(Red

Spring Wheat), MN, ND.
S TUNT ,

Leaf Stripe. Cephalosporium

gramineum, VA.
V IRUS . Triticum Mosaic, Southern Great Plains,
KS, OK, TX; Soilborne Wheat Mosaic,OR.

L ICHEN . Strigula elegans and

S. complanata, LA, Southern US.
R OT ,

Whipplea

Root. Clitocybe tabescens, FL;

Phymatotrichum omnivorum, TX.
R UST . Gymnosporangium ellisii (0, I), MA to
MD; III on Chamaecyparis .
S OOTY M OLD . Capnodium grandisporum,FL.

D OWNY M ILDEW . Peronospora whippleae, CA.

Whortleberry, Bilberry
(Vaccinium spp.)

Weigela

B LIGHT , Twig; Berry Rot. Monilinia ledi, NY.
G ALL , Leaf. Exobasidium vaccinii, occasional;
E. parvifolii, stem gall, OR, WA; E. vaccinii-
uliginosi, shoot gall, rose-bloom, OR.
L EAF S POT , Tar. Rhytisma vaccinii,AK.
P OWDERY M ILDEW . Microsphaera alni var.
vaccinii, AK, OR, WA, WY; Podosphaera
oxyacanthae, AK.
R OOT , Rot. Phytophthora cinnamomi, VA;
P. nicotianae,VA;P. palmivora, VA.

B ACTERIAL Crown Gall. Agrobacterium

tumefaciens, MD, MS.
B LIGHT , Twig. Phoma weigelae, WA.
L EAF S POT . Cercospora weigelae, MD, MS, NJ;
Ramularia diervillae, TN.
N EMATODE , Lesion. Pratylenchus pratensis.
N EMATODE , Root Knot. Meloidogyne sp., CA,
MD, MS, TX.
R OT ,Root.Phymatotrichum omnivorum,TX.