Biology Reference
In-Depth Information
N
EMATODE
. Nacobbis batatiformis.
N
EMATODE
, Cabbage Cyst. Heterodera
cruciferae. Sugar-Beet, H. schachtii.
N
EMATODE
, Lesion. Pratylenchus pratensis.
Sting, Belonolaimus gracilis; B.
longicaudatus; Stubby Root, Trichodorus
christiei.
N
EMATODE
, Root Knot. Meloidogyne arenaria;
M. javanica.
N
ONPARASITIC
. Brown Heart. Probably boron
deficiency.
Chlorosis. Magnesium or manganese deficiency.
Oedema. Excessive water tension, or copper
sprays.
Pink Head. Probably genetic.
Tipburn. Potassium deficiency.
Whip-tail. Spindly growth, failure to head, due
to acid soil, mineral deficiencies.
P
OWDERY
M
ILDEW
. Erysiphe polygoni, AZ, CA,
CT, FL, MD, MA, OR; E. cruciferarum, CA.
R
OT
, Cottony; Drop. Sclerotinia sclerotiorum,
AZ, MA, NY, TX.
R
OT
, Firm Head. Sclerotinia sclerotiorum, CA,
NY; Phytophthora porri, WI.
R
OT
, Head. Fusarium avenaceum, NY.
R
OT
, Root. Macrophomina phaseoli, CA. on
Brassica campestris
; Phymatotrichum, TX;
Phytophthora megasperma, CA, OR;
P. drechsleri, KY.
R
OT
, Root and Crown. Sclerotinia minor,CA.
R
OT
, Root; Damping-off. Aphanomyces
raphani, WI. Also: Brassica alboglab-
ra-Chinese Kale; B. carinata-Abyssinian
Mustard; B. napus-; Rape;
B. perviridis-Spanish Mustard; B.
robertiana; Eruca sativa-Racuet Salad;
Raphanus raphanistruno-Wild Radish.
R
OT
, Soft; Black Mold. Rhizopus stolonifer,
occasional.
R
OT
, Sprout. Alternaria tenuis, Rhizoctonia
solani, and Fusarium sp. on brussels sprouts.
V
IRUS
. Cabbage Ring Necrosis; Cauliflower
Mosaic, GA; TurnipMosaic,GA;Beet
Curly Top; Tomato Spotted Wilt; Cabbage
Leaf Curl, GA.
W
HITE
R
UST
; Blister. Albugo candida, CA, ID,
KY, NE, NC, OH, TX.
W
ILT
, Vascular. Verticillium dahliae, CA.
Cabbage (Brassica oleracea) (Including
Broccoli, Brussels Sprouts,
Cauliflower, Kale, Kohl-rabi)
B
ACTERIAL
Black
Rot.
Xanthomonas
campestris, general.
B
ACTERIAL
Blight. Pseudomonas syringae, CA;
P. syringae pv. alisalensis, CA, SC;
P. cannabina pv. alisalensis, CA.
B
ACTERIAL
Leaf Spot. Pseudomonas maculicola,
widespread; P. cichorii, FL and inmarket;
Xanthomonas campestris pv. armoraciae,
FL, OH; X. campestris pv. campestris, SC;
Pseudomonas syringae pv. maculicola, CA,
OH, SC.
B
ACTERIAL
, MLO. Western Aster Yellows Phy-
toplasma, CA, TX.
B
ACTERIAL
Soft Rot; Stump Rot; Erwinia
carotovora, cosmopolitan.
B
LACKLEG
. Leptosphaeria biglobosa, Central
States, Mexico.
B
LACKLEG
; Leaf Spot. Phoma lingam, general
east of Rocky Mts., also OR, WA.
B
LIGHT
, Gray Mold. Botrytis cinerea, FL; Pacific
states, frequent.
B
LIGHT
, Southern. Sclerotium rolfsii, NC to FL,
TX, occasional.
C
ANKER
, Stem. Botrytis cinerea,WA.
C
LUB
R
OOT
. Plasmodiophora brassicae, general.
D
AMPING
-O
FF
; Bottom Rot. Pythium spp.;
P. polymastum, CA; Rhizoctonia solani,
general.
D
OWNY
M
ILDEW
. Peronospora parasitica, general.
L
EAF
S
POT
, Gray. Alternaria brassicae, general;
Black Spot, Head Browning, A. brassicicola,
general; A. oleraceae, occasional;
Cercospora brassicola, CA, DE, FL, IL,
MS, NC, OK; Phyllosticta brassicicola, CA;
Leptosphaeria maculans, WI.
L
EAF
S
POT
; White Spot. Cercosporella
brassicae, IN, OR, PA; Ring Spot,
Mycosphaerella brassicicola, AL, CA, IL,
NY, OR, TX, WA;
Pseudocercosporella
capsellae, CA.
M
OLD
, Leaf. Heterosporium variabile, MT, NY;
Seed, Curvularia geniculata; Stemphylium
botryosum.
