Biology Reference
In-Depth Information
Pleurotus spp.; Polyporus spp.;
Schizophyllum commune, cosmopolitan.
R
UST
. Melampsora ableti-capraearum
(
M. epitea
) (II, III), general except far North;
0, I on fir; M. arctica (II, III), AK, CO, NH;
M. epitea,MN;M. paradoxa (
M. bigelowii
)
(II, III), ME to NC, AK, IA, NM; 0, I on larch;
M. ribesii-purpureae (II, III), MT to CO,
AK, CA; 0, I on
Ribes
.
S
CAB
, Gray; Blight. Fusicladium saliciperdum
(
Venturia chlorospora
), New England to NJ,
NC, PA.
S
OOTY
M
OLD
. Capnodium sp.
S
POT
B
LOTCH
, Sooty. Gloeodes pomigena, WI.
F
RUIT
S
POT
, Black Speck. Leptothyrium pomi,
WI.
L
EAF
S
POT
. Cercospora gaultheriae, NY, WI;
Pezizella oenotherae, VA; Discosia
maculicola, secondary; Mycosphaerella
gaultheriae, ME to MD, WV; Phyllosticta
gaultheriae, general; Schizothyrium
gaultheriae, ME to VA, WI; Venturia
arctostaphyli, MD, MA, NJ, NY, VA.
P
OWDERY
M
ILDEW
. Microsphaera alni, WI.
A
NTHRACNOSE
;
Scab.
Sphaceloma
Wintergreen, Waxflower
murrayae, CA, OR, WA, WI.
Willow scab, followed by black canker, forms
a very destructive blight, killing many trees in
New England.
Pipsissewa.
▶
Winterberry (Ilex verticillata)
Wisteria (Wistaria)
L
EAF
S
POT
. Physalospora ilicis,NY.
L
EAF
S
POT
, Tar. Rhytisma concavum, WI;
R. prini, ME to MS, IL, WI.
P
OWDERY
M
ILDEW
. Microsphaera alni, WI.
B
ACTERIAL
Crown
Gall.
Agrobacterium
tumefaciens, CT, MD, TX.
C
ANKER
, Stem. Nectria cinnabarina, CT.
L
EAF
S
POT
. Phyllosticta wistariae, MA, MO, NJ,
TX; Septoria wistariae, TX.
N
EMATODE
, Root Knot. Meloidogyne spp.
P
OWDERY
Winter Cress (Barbarea)
M
ILDEW
.
Golovinomyces
cichoracearum, TX.
R
OT
, Heart. Pleurotus sp., WV.
R
OT
,Root.Phymatotrichum omnivorum,TX.
V
IRUS
. Wisteria Vein Mosaic, MS, NY, TX;
Tobacco Mosaic, RI.
B
ACTERIAL
Black Rot. Xanthomonas barbareae,
NY.
B
ACTERIAL
, Yellows. Spiroplasma citri, IL.
D
ODDER
. Cuscuta gronovii, NY.
D
OWNY
M
ILDEW
. Peronospora parasitica, TX.
L
EAF
S
POT
. Cercospora barbarea, WI;
Ramularia barbareae, MA to NJ, OH, TX,
WI; Alternaria sp., PA.
R
OT
, Stem. Sclerotium rolfsii, TX.
V
IRUS
. Beet Curly Top; Potato Yellow Dwarf.
W
HITE
R
UST
. Albugo candida, CA, TX.
Witch-Hazel (Hamamelis)
B
ACTERIAL
Crown
Gall.
Agrobacterium
tumefaciens,MD.
L
EAF
S
POT
. Discosia artocreas, OK;
Gonatobotryum maculicola,NHtoWV,
FL, WI; Graphium hamamelidis, NY to IN,
TN; Monochaetia desmazierii, VA to GA,
TN; Mycosphaerella sp., WV; Phyllosticta
hamamelidis, CT to MS, TN, WI; Ramularia
hamamelidis, NY to WV, OK, WI.
Wintergreen, Checkerberry
(Gaultheria procumbens)
A
NTRACNOSE
. Colletotrichum gloeosporioides,
British Columbia, Canada.