Biology Reference
In-Depth Information
L EAF S POT . Septoria lavandulae, OH, OK.
N EMATODE , Root Knot. Meloidogyne sp.
R OT , Root. Armillaria mellea, TX.
S POT A NTHRACNOSE . Elsino¨ ledi, CA, ME, MI,
MN, NY, OR, PA, WA, WI.
Leek
Lawns
Shallot.
Grasses.
Lemon
Layia (Tidy-Tips)
Citrus Fruits.
P OWDERY
M ILDEW .
Golovinomyces
cichoracearum, CA.
V IRUS . Tomato Spotted Wilt, CA.
Lemon Grass, Citronella Grass
(Cymbopogon)
Leadtree (Leucaena)
L EAF S POT , Eye-spot. Helminthosporium
sacchari, FL.
R UST . Puccinia nakanishikii, CA.
T ANGLE -T OP . Myriogenospora paspali, FL.
R OT , Root. Ganoderma sulcatum, TX.
R UST . Ravenelia leucaenae (II, III), TX.
Leatherwood (Dirca)
Lentil (Lens)
R UST . Puccinia dioicae (I), ME to MN, MO, AL;
II, III on Carex .
A NTHRACNOSE .
Colletotrichum truncatum,
ND.
B ACTERIAL , Pink Seed. Erwinia rhapontici, Sas-
katchewan, Canada.
N EMATODE , Lesion. Pratylenchus neglectus,
P. thornei, ID.
P OWDERY M ILDEW . Erysiphe trifolii,WA.
R OT , Root. Thielaviopsis basicola, ID, WA;
Pythium irregulare, WA; Aphanomyces
euteiches, ID.
V IRUS . Red Clover Vein Mosaic, OR; Virus
epidemic,WA.
Lebbek (Albizzia lebbek)
L EAF S POT , Algal. Cephaleuros virescens, FL.
R UST . Sphaerophragmium acaciae, FL.
Ledum (Labrador-Tea)
G ALL , Leaf. Exobasidium vaccinii, AK,
OR, WA; Synchytrium vaccinii, red spot,
ME.
L EAF S POT . Ascochyta ledi, WI; Cryptostictis
arbuti, CA, OR; Rhytisma andromedae, tar
spot, ID.
P OWDERY M ILDEW . Microsphaera alni, WA.
R UST . Chrysomyxa ledi (II, III), CA, CT, ID, MI,
MT, NV, NH, NY, WI, WY; C. ledicola (II,
III), AK, ME, NH, NY, WA, WI; 0, I on
spruce.
Leptospermum
R OT , Root. Armillaria mellea, CA.
Lespedeza
L EAF A ND S TEM D ISEASE . Cercospora zebrina
(clover isolate), NC.
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