Biology Reference
In-Depth Information
N
EMATODE
, Dagger. Longidorus sp.
N
EMATODE
, Lesion. Pratylenchus safaenis, GA.
N
EMATODE
, Root Knot. Meloidogyne hapla; M.
javanica.
N
EMATODE
, Spiral. Helicotylenchus erythrinae;
H. nannus.
N
EMATODE
, Stem. Ditylenchus dipsaci, NY.
N
EMATODE
, Sting. Belonolaimus gracilis; B.
longicaudatus, DE.
N
ONPARASITIC
. Baldhead. Mechanical injury.
Chlorosis. Interveinal. Manganese deficiency,
AL, NC, TN.
Yellowing.
R
UST
. Phakopsora pachyrhizi, AL, AR, FL,
GA, HI, IL, IN, IA, KY, LA, MD, MS,
MO, NE, NC, SC, TN, TX, VA, Cuba,
Yucatan Peninsula, Mexico; P. packopsora,
VA, Mexico.
S
EED
I
NFECTION
. Phomopsis longicolla, IA.
S
UDDEN
D
EATH
S
YNDROME
. Fusarium solani f. sp.
glycines, AR, DE, IA, KY, MN, MO, NE, OH,
PA;
F.
tucumaniae,
Argentina;
F.
virguliforme, MI, WI;
Phoma
sp.;
Epicoccum
sp.;
Alternaria
sp.,
Trichoderma sp., MO.
V
IRUS
. Soybean Mosaic, ND; Tobacco Ring
Spot, causing bud blight, midwestern U.S.;
Beet Curly Top; Bean Pod Mottle, NE; Soy-
bean Yellow Mosaic, Midwest; Cowpea
Mosaic, IL; Tobacco Streak, OK; Soybean
Dwarf, CA, IL, WI; Tobacco Mosaic; Pep-
per Golden Mosaic, Mexico; Bean Pod Mot-
tle, AL, Ontario, Canada; Tomato Spotted
Wilt, AL, GA; Rhynchosia Golden Mosaic,
Mexico; Iris Yellow, Bunyaviridae, FL, GA;
Soybean Yellow Mottle Mosaic, MS; Soy-
bean Vein Necrosis, TN; Alfalfa Mosaic,
Alfamovirus, TN.
W
ILT
. Fusarium oxysporum f. sp.
tracheiphilum, PA to FL, NE, TX; also CA.
Edible soybeans are well-suited to home
garden culture and usually produce a good
crop without control measures beyond dusting
seed with a protectant before planting. Com-
mercial growers find a number of diseases of
economic importance; bacterial pustule, the
various blights, leaf spots, downy mildew,
wildfire, virus diseases. Some areas are now
under
Potassium
deficiency,
iron
deficiency.
P
HYTOPLASMA
, Stunting, Small Leaves, Aborted
Seed Pods, Costa Rica.
P
OWDERY
M
ILDEW
. Erysiphe polygoni, DE, IA,
NC, SC; Microsphaera diffusa, DE, MN,
NC.
R
OOT
D
EATH
, Yellowing
and
Stunting.
Phytophthora sansomeana, OR.
R
OT
, Charcoal. Macrophomina phaseolina, IA,
MN, ND.
R
OT
, Red Crown. Cylindrocladium crotalariae,
Telemorph, Calonectria crotalariae, MS.
R
OT
, Root. Corynespora cassiicola, WI;
Phymatotrichum omnivorum, TX; Pythium
aphanidermatum, AZ; P. dissotocum, AZ;
Stachybotrys chartarum, IL; Fusarium
oxysporum, F. solani, F. acuminatum,
F. proliferatum, IA, MN; F. redolens, MN;
F. tricinctum, MN.
R
OT
, Root Black. Thielaviopsis basicola, AR.
R
OT
, Root and Stem. Fusarium virguliforme,
MN; Phytophthora megasperma f. sp.
glycinea, DE, Northeast, MN, SD; P. sojae,
AR, IL, MN, ND.
R
OT
, Seed. Fusarium scirpi, NE;
F. graminearum, IL; Nematospora coryli,
NC, OK,
quarantine
for
the
soybean
cyst
nematode.
Spanish Moss (Tillandsia)
SC, VA; Aspergillus
spp;
Phomopsis sojae,NY.
R
OT
, Stem. Cephalosporium gregatum, brown
stem, IL, IN, IA, KY, MN, MO, NC, OH, VA;
Pellicularia filamentosa, also root rot, can-
ker, general; Sclerotinia sclerotiorum, AZ,
IA, MD,
B
LIGHT
, Stem and Leaf. Fusarium solani. South-
east, U.S.
Sparaxis (Wandflower)
NY,
VA;
Phytophthora
megasperma var.
sojae; Neocosmospora
vasinfecta, AL.
V
IRUS
. Iris Mosaic, CA, OR.
