Biology Reference
In-Depth Information
P OWDERY
M ILDEW .
Golovinomyces
L EAF S POT . Cercospora tortipes, WI;
Gloeosporium veronicae, NY; Ramularia
veronicae, OK, TX, WI; Septoria veronicae,
CA, FL, IA, MI, OH, WI.
N EMATODE , Root Knot. Meloidogyne spp., FL.
P OWDERY M ILDEW . Sphaerotheca macularis, CT,
IA, OR, WI.
R OT , Root and Stem. Fusarium sp., NJ;
Rhizoctonia
cichoracearum, general.
R OT , Root. Phymatotrichum omnivorum, TX.
R UST . Puccinia aristidae (0, I), AZ; II, III on
grasses; P. vilfae (0, I), IN to OK, SD; II, III
on Sporobolus .
V IRUS . Bean Yellow Mosaic, CA; Bidens Mot-
tle, FL; Clover Yellow Mosaic, FL; Tomato
Spotted Wilt, GA; Nemesia Ring Necrosis
Tymovirus, CA; Angelonia Flower Break
Carmovirus.
solani,
IL,
MD;
Phymatotrichum omnivorum, TX.
R OT , Stem. Sclerotium rolfsii, CT, NJ, OH.
R UST . Puccinia albulensis (III), CO, MT, OR,
UT, WA, WY; P. probabilis (II, III), NM;
P. rhaetica (III), WA; P. veronicarum (III),
IA, WI.
S MUT , Leaf. Entyloma veronicae, CO, CT, IL,
IA, KS, MS, MO, NY, TX, WI; Urocystis
kmetiana, GA.
V IRUS . CucumberMosaic, AR; Tomato Spotted
Wilt, PA.
Verbena (Nemisia diascia)
N EMESIA R ING N ECROSIS . Tymovirus, CA;
Angelonia Flower Break Carmovirus.
Verbesina (Crownbeard)
D OWNY M ILDEW . Plasmopara halstedii,NM,
TX.
L EAF
Vetch (Vicia)
S POT .
Cercospora
fulvella,
TX;
Colletotrichum sp.,
also
stem spot;
B LIGHT , LEAF . Ascochyta fabae f. sp. vicia, CT.
L EAF S POT . Ramularia sphaeroidea (also stem),
CA.
L EAF S POT , Chocolate. Botrytis fabae, CT.
N EMATODE , Ring. Mesocriconema (formerly
Criconemella), SC.
V IRUS . Broad Bean Severe Chlorosis, MI;
Broad Bean Wilt.
Phyllosticta verbesinae, TX.
N EMATODE , Root Knot. Meloidogyne sp., AL.
P OWDERY M ILDEW . Golovinomyces
cichoracearum, SC, TX, VA.
R OT , Root. Helicobasidium purpureum, TX;
Phymatotrichum omnivorum, TX.
R UST . Coleosporium viguierae (II, III), AZ, FL,
NC, TX; 0, I unknown; Puccinia abrupta
(II, III), CA, TX; P. cognata (0, I, II, III), AR,
LA, TN, TX; P. verbesinae (0, I, II, III), MD to
AL, LA.
Viburnum
B ACTERIAL
Crown
Gall.
Agrobacterium
tumefaciens, PA, WA.
B ACTERIAL Leaf Spot. Pseudomonas viburni, IL,
IA, NJ.
B LIGHT . Phytophthora ramorum, OR, WA.
B LIGHT , Gray Mold; Shoot. Botrytis cinerea,
MA, WA.
B LIGHT , Sudden Oak Death. Phytophthora
ramorum, CA.
B LIGHT , Thread. Pellicularia koleroga, FL, NC.
Veronica (Speedwell)
B ACTERIAL , Proliferation. Rhodococcus fascians,
OR.
D OWNY M ILDEW . Peronospora grisea, CA, GA,
KS, IL, IN, MO, NY, TX, WI.
G ALL , Leaf. Synchytrium globosum, LA;
Sorosphaera veronicae, CO, MS.
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