Biology Reference
In-Depth Information
B
ACTERIAL
C
ANKER
. Xanthomonas campestris,
CA.
B
ACTERIAL
Astilbe
Crown
Gall.
Agrobacterium
P
OWDERY
M
ILDEW
. Erysiphe polygoni, MA.
R
OT
, Petiole. Sclerotium rolfsii var. delphinii,
IA.
V
IRUS
. Tobacco Ringspot, MN.
W
ILT
. Fusarium sp., WA.
tumefaciens, CA.
B
ACTERIAL
Fruit Blast. Pseudomonas syringae,
CA.
B
LACK
M
ILDEW
. Irene perseae, FL.
B
LACK
S
TREAK
. No causal agent has been identi-
fied, FL.
B
LIGHT
, Seedling. Sclerotium rolfsii, FL;
Phytophthora palmivora, FL.
B
LOTCH
, Fruit Spot. Cercospora perseae, FL; C.
purpurea.
C
ANKER
, Branch; Dothiorella Fruit Rot.
Botryosphaeria ribis var. chromogena, CA;
Neofusicoccum austral, N.
Astragalus
R
UST
. Uromyces punctatus, ID, OR.
Aubrietta
luteum, and
N. parvum, CA.
L
EAF
S
POT
. Phyllosticta micropuncta,AL,FL.
L
EAF
S
POT
; Algal; Green Scurf. Cephaleuros
virescens, FL.
L
EAF
S
POT
; Fruit Spot; Seedling Blight.
Pestalotia spp., general.
L
EAF
V
IRUS
. Tomato Spotted Wilt, PA.
Aucuba (Gold-Dust Tree)
A
NTHRACNOSE
; Leaf Spot. Gloeosporium sp.
(
Glomerella cingulata
), NJ, PA, SC, WA. Prob-
ably includes reports of
Colletotrichum pollaci
,
MS, NJ.
L
EAF
S
POT
. Pestalotia aucubae, secondary;
Phyllosticta aucubae, CA, MS, SC.
R
OT
,
S
POT
;
Smudgy
Spot
on
Twigs.
Helminthosporium sp., CA.
N
EMATODE
, Burrowing. Radopholus similis, FL.
N
EMATODE
, Dagger. Xiphinema americanum.
N
EMATODE
, Meadow. Pratylenchus brachyurus;
P. vulnus.
N
EMATODE
, Root Knot. Meloidogyne sp., resis-
tant to.
N
EMATODE
, Stubby Root. Trichodorus christiei.
N
ONPARASITIC
. Carapace Spot. Abrasion of
young fruits.
Dieback. Copper deficiency.
End Spot. Dessication
Root.
Phytophthora
cinnamomi,
P. citricola, NC.
V
IRUS
. Tobacco Mosaic, Aucuba strain.
W
ILT
. Verticillium albo-atrum, NJ.
Autumn Crocus (Colchicum)
of
young
fruits;
overmaturity.
Little Leaf; Rosette. Zinc deficiency.
Melanorhiza. Defective drainage and aeration.
Mottle Leaf. Nutritional deficiency.
Tipburn. Sometimes salt accumulation in poorly
drained soil.
R
OT
, Blue Mold. Penicillium expansum, CA.
R
OT
, Collar; Trunk Canker. Phytophthora
cactorum CA; P. parasitica FL; Sclerotinia
sclerotiorum, CA.
R
OT
,
B
LIGHT
; Leaf Spot. Botrytis elliptica,WA.
S
MUT
, Leaf. Urocystis colchici, DE, NY, OH,
PA, WA.
V
IRUS
. Tobacco Ring Spot Virus, MD.
Avocado (Persea americana)
A
NTHRACNOSE
; Leaf and Fruit Spot; Black Rot.
Glomerella cingulata, Mexico, general;
Colletotrichum gloeosporioides, Mexico.
Fruit.
Diplodia
theobromae,
FL;
Phomopsis
sp., FL, TX; Phytophthora
