Host Plants - Westcott's Plant Disease - page 479

R OT , Charcoal. Macrophomina phaseoli, AZ,
CA.
R OT , Cottony Fruit; Twig Blight. Sclerotinia
sclerotiorum, CA, FL, TX.
R OT , Dothiorella; Bark Canker. Botryosphaeria
ribis, widespread.
R OT , Fruit. Aspergillus spp.; Fusarium spp.;
Mucor spp.; Oospora citri aurantii, sour
rot, Nematospora coryli, dry rot; Candida
krusei; Gloeosporium foliicolum
( Glomerella cingulata ), FL; Penicillium
italicum, Mexico.
R OT , Gray Mold; Twig Blight. Botrytis cinerea,
CA.
R OT , Green Mold. Penicillium digitatum; Blue
Mold, CA; P. italicum; Pink Mold,
P. roseum, cosmopolitan; Black Mold,
Rhizopus stolonifer; Trichothecium viride,
occasional.
R OT . Melanose; Phomopsis; Decorticosis; Shell
Bark. Diaporthe citri, general.
R OT , Mushroom Root. Armillaria mellea, CA;
Clitocybe tabescens, FL.
R OT , Root. Fusarium solani; Phymatotrichum
omnivorum, TX; Poria vaporaria, CA;
Thielaviopsis basicola.
R OT , Sour. Geotrichum citri-aurantii, Mexico.
R OT , Wood. Daldinia concentrica, occasional;
Ganoderma lucidum, FL; Polyporus spp.;
Schizophyllum

flowering for melanose. Citrus trees in the
burrowing nematode area are being pulled and
the soil treated. Consult the California and
Florida Agricultural Experiment Stations for
the latest information on specific Citrus

problems.

Clarkia

A NTHRACNOSE , Colletotrichum sp., PA.
B ACTERIAL , MLO. Aster Yellows, NY, and Cali-
fornia Aster Yellows, CA.
B LIGHT , Gray Mold; Canker. Botrytis cinerea,
CA, NY.
D AMPING -O FF . Pythium debaryanum, CA; Rhi-
zoctonia solani, CT.
D OWNY M ILDEW . Peronospora arthuri, CA.
G ALL , Leaf. Synchytrium fulgens, CA.
L EAF S POT . Alternaria tenuis, secondary.
R OT , Stem. Fusarium sp., CA; Phytophthora
cactorum, NY.
R UST . Puccinia oenotherae (0, I, II, III), CA, ID,
NV, OR, WA; Puccini astrum pustulatum
(II, III), AK, NY.
W ILT . Verticillium albo-atrum, CA.

Clausena (Wampi)

commune; Trametes

hydnoides; T. hispida.
S OOTY M OLD , Capnodium citri; C. citricola.
Gulf states.
S POT A NTHRACNOSE ; Citrus Scab. Elsino¨
fawcettii, AL, CA, FL, LA, MS.
V IRUS . Algerian Navel Orange, FL;
Citrus Ringspot, CA, FL; Citrus Exocortis
(viroid); Citrus Psorosis, Scaly Bark; Citrus
Tatter Leaf; Citrus Tristeza, Quick Decline;
Citrus Vein Enation; Citrus Xyloporosis,
Cachexia; Citrus Yellow Vein; Citrus Leaf
Rugose, CA; Citrus Tristeza, LA; Citrus
Variegation; Citrus Leprosis; Citrus Ena-
tion-Woody Gall, CA.
In the home garden oil sprays for scale help
to get rid of sooty mold. A neutral copper spray
just before growth starts is recommended in
Florida for citrus scab and one just after

L EAF S POT . Glomerella cingulata,MD.
N EMATODE , Citrus. Tylenchulus semipenetrans,
FL.
S POT A NTHRACNOSE ; Citrus

Scab. Elsino¨

fawcettii, FL.

Claytonia (Spring Beauty)

D OWNY M ILDEW . Peronospora claytoniae, CA,
IA, MD, TX, WA.
G ALL , Leaf. Physoderma claytoniana; MI, WI.
L EAF S POT . Ramularia claytoniae, CA.
R OT , Root. Phymatotrichum omnivorum, TX.
R UST . Puccinia marie-wilsoniae (0, I, III), NH to
VA, CO, MO, UT, WA, WI; P. agnita (0, III);
Uromyces claytoniae (0, I, III), NY.
V IRUS . Spring Beauty Latent, AR.