Biology Reference
In-Depth Information
N
EMATODE
, Root Knot. Meloidogyne sp., CA.
R
UST
. Puccinia dichondrae
L
EAF
S
POT
; Stem Spot. Cercospora anethi, ND,
OR, TX; Phoma anethi, CT, IN, IA.
R
OT
, Root; Wilt. Fusarium sp., OH;
Phymatotrichum omnivorum, TX.
R
OT
, Stem. Sclerotinia sclerotiorum, TX.
(II, III), LA, MS,
NC, TX.
V
IRUS
. Cucumber Mosaic, CA.
Dieffenbachia
Diodia
A
NTHRACNOSE
. Glomerella cincta, NJ;
Gloeosporium sp., WA; Colletotrichum
sp., WA.
B
ACTERIAL
Stem and Leaf Rot. Erwinia
dieffenbachiae, FL.
L
EAF
S
POT
. Cephalosporium dieffenbachiae,
FL,
V
IRUS
. Diodia Vein Chlorosis, AR.
Dittany, Stonemint (Cunila)
NY;
Leptosphaeria
sp.,
FL;
L
EAF
S
POT
. Septoria cunilae, IL.
R
UST
. Puccinia menthae (0, I, II, III), NY to VA,
AR, IL.
Myrothecium roridum, FL.
R
OT
, Root. Pythium splendens, FL; Rhizoctonia
sp., FL.
R
OT
, Stem. Phytophthora palmivora, CA, FL.
R
OT
, Stem, Leaf, Cutting. Fusarium solani, FL.
Propagate from disease-free canes.
Dizygotheca
L
EAF
S
POT
. Alternaria panax, CA.
Diervilla (Bush Honeysuckle)
Dodder (Cuscuta)
L
EAF
S
POT
. Cercospora weigeliae (
C. diervillae
)
ME, TX; Phyllosticta diervillae, WI;
Ramularia diervillae, ME, NH, NY, WI;
Septoria diervillae, IA, MA, MN, WI.
N
EMATODE
, Root Knot. Meloidogyne sp.
P
OWDERY
M
ILDEW
. Microsphaera alni, NJ, WA.
R
OT
, Root. Phymatotrichum omnivorum, TX.
V
IRUS
. Tobacco Ringspot, MD.
P
HYTOPLASMA
. Citrus Greening, FL.
V
IRUS
. Tomato Ringspot, PA.
Dodecatheon (Shooting-Star)
L
EAF
S
POT
. Heterosporium sp., AK; Phyllosticta
dodecathei, TX, WI.
R
UST
. Puccinia melanconioides (0, I, III), CA,
OR; P. ortonii (0, I, II, III), AK, CA, OR, SD,
UT, WA; P. solheimi (III) WY; Uromyces
acuminatus var. steironematis (0, I), NE,
ND; II, III on marsh grasses.
Digitaria (Large Crabgrass)
R
OT
, Root. Pythium arrhenomanes, LA.
Dill (Anethum)
Dogbane (Apocynum)
B
ACTERIAL
, MLO. Aster Yellows, NY, TX.
B
LIGHT
. Itersonilia perplexans, CA.
D
AMPING
-O
FF
. Rhizoctonia solani,GA.
D
ODDER
. Cuscuta sp., GA.
L
EAF
S
POT
. Cercospora apocyni, north central
states, TX, VA; Phyllosticta apocyni, IA,
MS, NJ, NY, OR, PA, WI; Septoria littorea,
