Biology Reference
In-Depth Information
B
LIGHT
, Twig. Phyllostictina hysterella
(
Physalospora gregaria
); Pestuloria sp., PA;
P.
Yaupon (Ilex vomitoria)
funerea,MA;Sphaeropsis
sp. NJ;
L
EAF
S
POT
; Tar Spot. Rhytisma ilicincola,VA.
R
OT
,Root.Phymatotrichum omnivorum,TX.
S
OOTY
M
OLD
. Capnodium spp., Gulf states.
Botryosphaeria ribis.
D
AMPING
-O
FF
. Rhizoctonia solani, CT.
R
OT
, Heart. Fomes hartigii OR; F. roseus,ID.
R
OT
, Root. Armillaria mellea, ID;
Phytophthora cinnamomi, OH; P. lateralis,
CA.
R
OT
, Wood. Polyporus schweinitzii, ID.
Yellow-Root (Xanthorhiza)
L
EAF
S
POT
. Phyllosticta xanthorhizae, NC, WV.
Yucca (Adams-Needle, Joshua-Tree,
Spanish Bayonet)
Yellowwood (Cladrastris)
B
LIGHT
,
Flower.
Cercospora
floricola
P
OWDERY
M
ILDEW
. Phyllactinia corylea, OK.
R
OT
, Wood. Polyporus spraguei, MD.
V
IRUS
. Bean Yellow Mosaic, NY.
W
ILT
. Verticillium albo-atrum, IL.
(
C concentrica
), TX.
B
LIGHT
, Leaf. Kellermannia anomala, second-
ary, general.
L
EAF
S
POT
, Cercospora concentrica, CT, GA,
IA, NJ, OK, TX; Coniothyrium
concentricum, general; Cylindrosporium
angustifolium, KS, MS, OK, TX; Diplodia
circinans, TX; Epicoccum asterinum, TX;
Gloeosporium yuccogenum, MO, TX;
Neottiospora yuccifolia, GA, WA;
Pestalozziella yuccae, secondary, TX;
Phyllosticta sp., TX; Stagonospora
gigantea, CA; Leptosphaeria obtusipora.
M
OLD
, Leaf. Torula maculans, AZ, CA, SC, TX;
Alternaria tenuis, leaf rot.
N
EMATODE
. Meloidogyne sp., OR.
P
HYTOPLASMA
. Yucca Phyllody Bud Prolifera-
tion; Aster Yellows, TX.
R
OT
, Stem. Sclerotium rolfsii,MD.
R
UST
. Puccinia amphigena (0, I), NE.
Many other fungi are found on dead leaves and
stems.
Yerba Buena (Micromeria)
R
UST
. Puccinia menthae (0, I, II, III), CA, ID,
OR, WA.
Yerba Santa (Eriodictyon)
B
LOTCH
, Sooty. Coniothecium eriodictyonis,CA.
Yew (Taxus)
B
LIGHT
, Needle. Herpotrichia nigra, ID;
Sphaerulina taxi, CA, ID, OR, WA;
S. taxicola, also twig blight, NY, PA;
Alternaria sp., CT, NY, RI; Phyllosticta
taxi, VA; Macrophoma taxi;
Mycosphaerella taxi; Neopeckia coulteri;
Cryptocline taxicola, eastern United States.
B
LIGHT
, Ramorum. Phytophthora ramorum,
PA.
B
LIGHT
, Seedling. Phytophthora cinnamomi,
IN, MD, VA, Pacific Northwest.
Zamia (Coontie)
A
LGAE
. Anabaena cycadeae, in coralloid roots,
FL.
N
EMATODE
. Meloidogyne sp., FL.
