Biology Reference
In-Depth Information
D IEBACK . Colletotrichum hibisci, NJ, NY, TX.
L EAF S POT . Ascochyta abelmoschi, NY;
Cercospora kellermanii, IN; Phyllosticta
hibiscina, CT, FL, LA, MD, NJ, NY;
Septoria sp., NJ.
R OT , Root. Phymatotrichum omnivorum, TX.
R UST . Puccinia schedonnardi (0, I), CT to AL,
NE, TX; II, III on grasses.
roberti, Gulf states, MD, NY; Stemphylium
elasticae, secondary; Trabutia ( Phyllachora )
ficuum, black spot, FL.
N EMATODE , Leaf. Aphelenchoides besseyi, FL.
N EMATODE , Root Knot. Meloidogyne
spp.;
M. incognita.
N EMATODE , Spiral. Helicotylenchus nannus.
Rudbeckia (Golden-Glow, Coneflower,
Black-Eyed Susan)
Rosemary (Rosmarinus)
B LIGHT ,A ERIAL ,R OT R OOT . Rhizoctonia solani,
LA, OK.
R OT , Root. Phymatotrichum omnivorum, TX.
B ACTERIAL , MLO. Aster Yellows, NY, and Cali-
fornia Aster Yellows, CA.
B LIGHT , Southern. Sclerotium rolfsii, FL, NJ.
D OWNY M ILDEW . Plasmopara halstedii IA, NE,
NY, NC, ND, VA, WI.
G ALL , Leaf. Synchytrium aureum, IL, WI.
L EAF S POT . Cercospora rudbeckiae, NY;
C. tabacina, IL, NY, WI; Phyllosticta
rudbeckiae, IA, NY, WI; Ramularia
rudbeckiae, VT to MS, CO, ID, MT, VA,
VT, WV; Septoria rudbeckiae, DE, KS,
NE, WA, WI.
P OWDERY
Rose-of-Sharon, Shrub-Althaea
(Hibiscus syriacus)
L EAF S POT . Cercospora malayensis, GA;
Phyllosticta hibiscina, OK; P. syriaca, NY.
N EMATODE , Root Knot. Meloidogyne
sp.,
MS, TX.
R OT , Root. Phymatotrichum omnivorum, TX.
R UST . Kuehneola malvicola (II, III), Gulf states.
M ILDEW .
Golovinomyces
cichoracearum, general.
R OT , Root. Phymatotrichum omnivorum, TX.
R OT , Stem. Sclerotinia sclerotiorum, CT.
R UST . Aecidium batesii (0, I), NE; Puccinia
dioicae (0, I), MD, SD; P. rudbeckiae (III)
TX; Uromyces perigynius (0, I), MD to MT;
II, III on Carex ; U. rudbeckiae (III), MT, MD
to MS, NM, TX.
S MUT , White. Entyloma compositarum,
Rouge-Plant (Rivina)
L EAF S POT . Cercospora flagellaris, FL, TX;
Septoria rivinae, TX.
R OT , Root. Helicobasidium purpureum, TX;
Phymatotrichum omnivorum, TX.
R UST . Puccinia raunkaerii (0, I, II, III), FL, TX.
IA,
MO, OH, WI.
V IRUS . Potato Yellow Dwarf, NY; Mosaic,
unidentified, IL, IN; Bidens Mottle, FL;
Tomato Spotted Wilt, TX.
V IRUS , Phyllody. Flower Distortion, MN.
W ILT . Verticillium albo-atrum, NY.
Rubber-Plant (Ficus elastica)
A NTHRACNOSE . Glomerella cingulata, general;
Gloeosporium sp., WA.
B ACTERIAL
Crown
Gall.
Agrobacterium
Rue Anemone (Anemonella)
tumefaciens, CA, TX.
C ANKER ;D IEBACK . Physalospora rhodina,GA.
L EAF S POT . Alternaria sp., IN, OH, TX;
Leptostromella elastica, NY, Northeastern
states; Mycosphaerella
L EAF S POT . Cercospora caulophylli, MO.
P OWDERY M ILDEW . Erysiphe polygoni, IA.
R UST . Puccinia recondita (0, I), IN, IA, MO.
S MUT , Leaf and Stem. Urocystis anemones, NY.
bolleana, GA;
Phyllosticta
sp., MD, NY;
Phyllosticta
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