Biology Reference
In-Depth Information
Rhizoctonia solani, FL; Penicillium
oxalicum, NC; Pithomyces chartarum, KY.
B LIGHT , Melting Out. Curvularia geniculata; C.
inaequalis;
L EAF S POT , Black, Tar. Phyllachora graminis,
widespread; P. sylvatica, Northwest.
L EAF S POT , Brown Stripe. Scolecotrichum
graminis, widespread, except on ryegrass.
L EAF
C.
lunata;
Sclerotinia
homoeocarpa,MS.
B LIGHT , Rapid. Labyrinthula terrestris, CO.
B LIGHT , Southern. Sclerotium rolfsii, FL, IL, NJ.
B LIGHT (Zonate Leaf Spot). Drechslera gigantea
( Helminthosporium gigantea ), RI; Bipolaris
sorokiniana, Southeast, U.S.
B LOTCH , Purple leaf. Septoria macropoda;
S. agropyrina, brown; S. elymi, northern U.S.
C HOKE . Epichloe typhina, OR.
D AMPING -O FF . Cladochytrium graminis,on
bentgrass.
D EAD S POT . Ophiosphaerella agrostis, MD,
Ontario, Canada;
S POT ,
Copper.
Ramulispora
( Gloeocercospora )
sorghi, CA, LA, PA, RI,
on bentgrass.
L EAF S POT , Frog-eye. Selenophoma donacis,
northern states; S. everhartii; S. obtusa.
L EAF S POT , Gray. Pyricularia grisea, blast dis-
ease, CA, CT, IL, IN, ME, MA, NH, PA, RI;
P. Perenne (on ryegrass), NV.
L EAF S POT , Gray Leaf Speckle. Septoria triseti,
OR, WA on redtop, bent; S. calamagrostidis,
AK, OR, WY; S. loligena, CA; S. nodorum;
S. oudemansii, northern U.S.; S. secalis,
white leaf spot; S. tenella, northern plains;
S. tritici var. lolicola.
L EAF S POT , Melting-out. Helminthosporium
vagans, on bluegrass; H. sativum;
H. giganteum, Zonate eye-spot, general;
H. dictyoides, fescue netblotch; H. siccans,
brown blight; H. stenacrum, leaf mold;
H. triseptatum, gray leaf mold; H. cynodontis,
Bermuda grass leaf blotch; H. erythrospilum;
H. rostratum; H. stenophilum.
L EAF S POT , Red Eye-Spot. Mastigosporium
rubricosum, ME, OR, WA, WY.
L EAF S POT , Yellow Ring. Trechispora alnicola,
IL.
M OLD . Cladosporium herbarum; Fusarium
heterosporum.
N EMATODE . Longidorus breviannulatus, Que-
bec, Canada; L. elongates, Canada.
N EMATODE , Barley Root Knot, Meloidogyne
naasi, Quebec, Canada.
N EMATODE , Cyst. Punctodera punctata, NJ;
Heterodera iri, CT, ME, MA, NH, NY, RI.
N EMATODE , Dagger. Xiphinema americanum.
N EMATODE , Gall. Anguina agrostis.
N EMATODE , Lance. Hoplolaimus coronatus.
N EMATODE , Lesion. Pratylenchus brachyurus;
P. pratensis; P. subpenetrans; P. thornei;
P. fallax.
N EMATODE , Pin. Paratylenchus projectus.
N EMATODE , Pseudo Root Knot. Hypsoperine
graminis, AL, MD, TN.
(Spring Dead
Spot)
O. herpotricha, MS.
D IEBACK , Wetland. Fusarium aestuarinus, CT.
D ODDER . Cuscuta sp., MO.
D OLLAR S POT . Sclerotinia homoeocarpa,
IL,
NY, PA, WA.
D OWNY M ILDEW . Sclerophthora macrospora,
IL, LA, MS, TX, on St. Augustine grass and
Kentucky bluegrass; Sclerospora farlowii,
OK, on Bermuda grass.
E RGOT . Claviceps purpurea, NY to KY, MT,
ND, TX, OK, OR, WI; C. microcephala,
MD, MI, OH; C. cynodontis, OK.
F AIRY R ING . Marasmius oreades; Psalliota
campestris; Lepiota morgani; Cyathus
stercoreus (birds nest fungus), MN.
H ONEYDEW . Claviceps purpurea, OK.
L EAF S POT . Ascochyta agropyrina, Northwest;
A. desmazieri; CA, OR, WA; A. elymi;
A. graminae on Bermuda grass; A. hordei;
A. sorghi; A. graminicola; A. utahensis;
Cercospora seminalis, TX;
C. fuscomaculans; C. poagena;
Cylindrosporium glyceriae, NY;
Leptosphaeria korrae, ringspot, MD, PA,
WI; Macrophoma sp., OR; Ovularia
pulchella, OR, UT; Phaeoseptoria sp., OR;
Placosphaeria graminis; Septogloeum
oxysporum, char spot, widespread;
Stagonospora intermixta; Pithomyces
chartarum, NE; Bipolaris hawaiiensis, MS.
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