Biology Reference
In-Depth Information
A
NTHRACNOSE
, Scab. Elsino¨ australis, FL.
B
ACTERIAL
Blast; Blight; Black Pit. Pseudomo-
nas syringae, CA; after cold rains.
B
ACTERIAL
Brown Leaf Spot.
L
EAF
S
POT
, Algal; Red Rust. Cephaleuros
virescens, Gulf states.
M
ISTLETOE
. Phoradendron sp., Gulf states.
N
EMATODE
, Burrowing. Radopholus similis, FL.
N
EMATODE
, Citrus. Tylenchus semipenetrans,
CA, FL.
N
EMATODE
, Lance. Hoplolaimus coronatus.
N
EMATODE
, Lesion. Pratylenchus brachyurus;
P. vulnus.
N
EMATODE
,
Burkholderia
andropogonis, FL.
B
ACTERIAL
Canker. Xanthomonas campestris
pv. citri, FL.
B
ACTERIAL
Crown
Gall.
Agrobacterium
tumefaciens, AZ, CA.
B
ACTERIAL
Greening. Candidatus Liberibacter
asiaticus, Central America, Puerto Rico.
B
ACTERIAL
, MLO. Citrus Stubborn Disease.
B
LIGHT
, Brown Spot; Fruit and Young Shoots.
Alternaria citri, FL.
B
LIGHT
, Leaf and Stem. Phytophthora syringae,
CA.
B
LIGHT
, Seedling; Fruit Rot. Sclerotium rolfsii.
B
LIGHT
, Thread. Pellicularia koleroga, Gulf
states.
B
LIGHT
, Twig. Gibberella baccata (
Fusarium
lateritium
), CA; Tryblidiella rufula, TX.
B
LOTCH
, Sooty. Gloeodes pomigena, Gulf states.
C
ANKER
, Branch. Eutypella spp., CA;
Spencermartinsia viticola, Neofusicoccum
austral, and N. parvum, CA.
C
ANKER
,
Ring.
Criconema
civellae;
Criconemoides citri, FL.
N
EMATODE
, Stubby Root. Paratrichodorus
christiei.
N
ONPARASITIC
. Blight. Boron deficiency, CA, FL.
Bronzing. Magnesium deficiency, FL.
Cancroid Spot. Genetic abnormality.
Chlorosis. Iron deficiency, AZ, CA, FL; manga-
nese deficiency, FL.
Exanthema. Copper deficiency, augmented by
excessive nitrogen fertilization and bad drain-
age, CA, FL.
Greasy Spot. Black Melanose, Cause unknown,
CA, TX; chiefly grapefruit.
Gummosis. Gum Spot; Gummosis. Environmen-
tal injuries in part.
Leprosis. Florida Scaly Bark; Nailhead Rust.
Cause unknown, FL.
Mottle Leaf. Zinc deficiency, AZ, CA, FL.
Oleocellosis. Rind-oil Spot. Chemical
Branch
Knot.
Sphaeropsis
tumefaciens, FL.
C
ANKER
, Branch Wilt. Exosporina fawcettii,
CA.
C
ANKER
;D
IEBACK
. Aspergillus foetidus, CA.
C
ANKER
, Felt Fungus. Septobasidium spp., Gulf
states.
C
ANKER
, Trunk. Botryodiplodia theobromea,
TX.
C
ANKER
, Wound. Hendersonula toruloidea, CA.
D
AMPING
-O
FF
. Pythium spp.; Rhizoctonia
solani, cosmopolitan.
D
ODDER
. Cuscuta americana, CA, FL; Cassytha
filiformis, a dodderlike plant, FL.
G
REENING
D
ISEASE
. Huanglongbing, FL.
L
EAF
S
POT
. Cercospora aurantia, FL, TX;
Greasy Spot, C. citri-grisea, FL; Tar Spot,
C. gigantea, FL; Cladosporium oxysporum,
FL; Mycosphaerella lageniformis, CA;
M. citri, FL; Pleospora sp., CA; Alternaria
citri, on Rangpur lime; Fruit Spot, Septoria
citri, CA, TX; S. limonium, CA;
Xanthomonas fuscans, Brazil.
injury
from release of oil in rind.
Rumple. Rind network on lemon;
cause
unknown.
Silver Scurf. Thrips injury on fruit, widespread;
Silvering. Rust mite injury; Stigmonose.
Insect punctures.
Wilt; Blight; Leaf Curl. Irregular water supply,
FL.
P
HYTOPLASMA
,
Citrus
Huanglongbing.
Candidatus L. asiaticus, FL.
P
OWDERY
M
ILDEW
. Oidium sp., CA, FL;
O. tingitaninum.
R
OT
. Diplodia; Collar; Twig Blight. Diplodia
natalensis, general.
R
OT
, Black,
of
Fruit. Alternaria
citri,
widespread.
R
OT
, Brown; Gummosis. Phytophthora
citrophthora, AZ, CA, FL; P. parasitica,
“mal di gomma,” CA, FL.