Host Plants - Westcott's Plant Disease - page 481

Clover Red Leaf, CA; White Clover
Mosaic; Alfalfa Mosaic, WI; Bean Yellow
Mosaic, AK.

Cocoyam (Xanthosoma)

B ACTERIAL Leaf Spot. Xanthomonas campestris
pv. dieffenbachiae, FL.

Coccoloba (Sea-Grape, Dove-Plum)

Codonanthe

B LACK M ILDEW . Lembosia coccolobae;
L. philodendri; L. portoricense; L. tenella,
FL.
L EAF S POT . Pestalotia coccolobae, FL.
R UST . Puccinia canaliculata,GA;Uredo
coccolobae; U. uviferae (II), FL.

V IRUS . Tobacco Mosaic, CA, CT, DC, FL,
OH, WA.

Coffee-Berry (Rhamnus californicus)

Cocklebur (Xanthium) B LIGHT , Sudden Oak Death. Phytophthora

ramorum, CA.
L EAF S POT . Phaeosphaerella rhamni, CA.
R UST . Puccinia mesneriana (III), CA.
S OOTY M OLD . Capnodium sp., CA.

D OWNY M ILDEW . Plasmopara halstedii,ND.
N EMATODE , Root Knot. Meloidogyne hapla.
R OT , Stem. Sclerotinia trifoliorum, MD;
S. sclerotiorum, MD; S. minor,MD.
R UST .

Puccinia canaliculata, KS;

Coleus P. xanthii, KS.

B ROOMRAPE . Orobanche ramosa, NY.
D AMPING -O FF ; Cutting Rot. Pythium
spp., CA, MD; Rhizoctonia solani, FL, IL,
NY, TX.
D OWNY M ILDEW . Peronospora lamii, LA, NY.
L EAF S POT . Alternaria sp., NJ; Phyllosticta sp.,
NJ.
N EMATODE , Leaf. Aphelenchoides fragariae, NJ.
N EMATODE , Root Knot. Meloidogyne spp., AL,
CA, CT, MD, MO, NJ, NY, OK.
N ONPARASITIC . Crinkle. Genetic leaf deformity.
R OT , Gray Mold; Leaf Blight. Botrytis cinerea,
AK, MO.
S LIME M OLD . Badhamia panicea, KS.
V IRUS . Coleus Mosaic; Coleus Vein Necrosis,
Tobacco Etch Virus, MN, MO.
W ILT . Verticullium sp., CT.

Cockscomb (Celosia argentia)

D AMPING -O FF . Rhizoctonia solani, CT.
L EAF S POT . Cercospora celosiae, AL, OK;
Phyllosticta sp., NJ; Alternaria sp., NJ.
N EMATODE , Root Knot. Meloidogyne sp., KS,
OH, TX.
R OT , Charcoal. Macrophomina phaseoli, TX.
V IRUS . Beet Curly Top, CA, TX; Cucumber
Mosaic, NY.

Cocoa (Theobroma cacas)

G ALL . Agrobacterium tumefaciens, FL.
R OT , Pod. Phytophthora palmivora,PuertoRico.

Cocoa-Plum (Chrysobalanus) Collards

L EAF S POT . Cercospora chrysobalani, FL.
L EAF S POT , Algal. Cephaleuros virescens, FL.

Cabbage.
Subject to downy mildew and Sclerotinia rot.

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