Biology Reference
In-Depth Information
D
AMPING
-O
FF
. Rhizoctonia solani, AR, CT.
D
IEBACK
. Phomopsis sp., AL.
L
EAF
C
URL
. Taphrina deformans, general.
L
EAF
S
CORCH
, Stunting, Branch Dieback. Xylella
fastidiosa, NM.
L
EAF
S
POT
. Phyllosticta circumscissa, wide-
spread; P. persicae, MD, NE, OH;
Mycosphaerella persicae,
Diplodia natalensis, gumming disease;
D. persicae, GA; Fusarium spp., CA, IL,
NY, TX; Gibberella persicaria, CA;
Gilbertella persicaria, SC; Glomerella
cingulata, occasional, AL, GA; Rhizopus
nigricans, cosmopolitan; Phomopsis sp., NJ.
R
OT
, Pink Mold. Trichothecium roseum, CA.
R
OT
, Root. Armillaria mellea, cosmopolitan;
Clitocybe monadelpha, AR, FL, MO, OK;
C. parasitica, OK; C. tabescens, FL, GA;
Ganoderma curtisii, NC, VA;
Phymatotrichum omnivorum, AZ, TX;
Cylindrocladium floridanum, GA.
R
OT
, Root and Crown. Phytophthora
megasperma, NY, OH; P. cryptogea, NY,
OH; P. cactorum, NY, OH.
R
OT
, Seedling Stem. Sclerotium rolfsii, South;
wilt, Cylindrocladiu floridanum; Penicil-
lium sp.
R
OT
,
frosty mildew,
widespread.
L
EAF
S
POT
; Shot-Hole. Cercospora
circumscissa, general; C. consobrina, IL,
LA.
N
EMATODE
. Tylenchusus palustris, AL, AR, GA,
VA.
N
EMATODE
, Dagger. Xiphinema americanum;
X. pacificum,GA.
N
EMATODE
, Lesion.
Pratylenchus penetrans;
P. vulnus.
N
EMATODE
, Ring. Criconemoides
similis,
C. xenoplax, NJ.
N
EMATODE
, Root Knot. Meloidogyne incognita;
M. javanica, on “nematode-resistant” varie-
ties; M. arenaria.
N
EMATODE
, Sting. Belonolaimus gracilis.
N
ONPARASITIC
. Catface. Insect blemish on fruit,
often from plant bugs.
Chlorosis. Iron and magnesium deficiency in
alkaline soils, Southwest.
Gummosis. Winter injury, bad drainage.
Internal Bark Necrosis. Manganese toxicity, IL.
Little Leaf. Zinc deficiency, CA.
Stem Pitting. Cause unknown, WV.
Suture Spot. Cause unknown. Decline, PA.
P
HYTOPLASMA
. Peach Rosette. Ontario Canada.
P
OWDERY
M
ILDEW
. Podosphaera oxyacanthae,
general;
Silver Leaf.
Stereum purpureum,
occasional.
R
OT
, Sour. Geotrichum candidum, CA, SC;
Issatchenkia scutulata, CA; Kloeckera
apiculata, CA.
R
OT
, Wood. Fomes spp.; Lenzites saepiaria;
Polyporus hirsutus, P. lacteus and
P. versicolor, cosmopolitan; Stereum
hirsutum; Shizophyllum commune, wound
rot.
R
UST
. Tranzschelia discolor (II, III), general; 0,
I on anemone, hepatica.
S
CAB
. Cladosporium carpophilum, general.
S
OOTY
M
OLD
; Fruit Stain. Fumago vagans,
cosmopolitan.
V
IRUS
. Peach Asteroid Spot, OK and TX to
southern CA, OR, UT, WA; Peach Calico,
ID, WA; Peach Dwarf; Peach Golden Net,
CO; Peach Little Peach, eastern U. S., CT to
NC to MI, MO; Peach Mosaic, OK, TX to
CA, CO, UT; Peach Mottle, ID; Peach
Necrotic Leaf Spot, MI, Puebla, Mexico;
Peach Phony Disease, Southeast to MO,
TX; Peach Red Suture, IN, MD, MI; Peach
Ring Spot, CA, WA, Peach Rosette,SCto
FL, MS, TN, MI to AR, OK; Peach Rosette
Mosaic, MI, NY; Peach Stubby Twig; Peach
Wart, AZ, CA, ID, OR, WA; Peach Yellow
Bud Mosaic, CA, Peach Yellow Leaf Roll
Sphaerotheca
pannosa
var.
persicae, general.
R
OT
, Brown. Monilinia fructicola, general, SC.
R
OT
, Brown; Blossom and Twig Blight.
Monilinia laxa, Pacific states.
R
OT
, Bud and Twig Blight. Fusarium
lateritium, other spp., CA, GA, KS.
R
OT
, Fruit. Botryosphaeria obtusa, AL, GA;
B. dothidea, AL, GA, SC; Aspergillus
niger, black mold, cosmopolitan; Botrytis
cinerea, gray mold, cosmopolitan;
Cephalothecium roseum, pink mold, wide-
spread; Choanephora persicaria, in market;
