Group Title: CFREC-Apopka research report
Title: Diseases of potted foliage plants
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 Material Information
Title: Diseases of potted foliage plants 1990 listing
Series Title: CFREC-Apopka research report
Physical Description: 12 p. : ; 28 cm.
Language: English
Creator: Chase, A. R ( Ann Renee )
Central Florida Research and Education Center--Apopka
Publisher: University of Florida, Central Florida Research and Education Center-Apopka
Place of Publication: Apopka FL
Publication Date: 1990
 Subjects
Subject: Foliage plants -- Diseases and pests -- Florida   ( lcsh )
Genre: government publication (state, provincial, terriorial, dependent)   ( marcgt )
bibliography   ( marcgt )
non-fiction   ( marcgt )
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Bibliography: Includes bibliographical references (p. 1).
Statement of Responsibility: A.R. Chase.
General Note: Caption title.
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Bibliographic ID: UF00065323
Volume ID: VID00001
Source Institution: University of Florida
Holding Location: University of Florida
Rights Management: All rights reserved by the source institution and holding location.
Resource Identifier: oclc - 70153187

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A. R. Chase'

University of Florida, IFAS,
Central Florida Research and Education Center Apopka
CFREC-Apopka, Research Report, RH-90-14

Foliage plants are subject to problems caused by insects, mites, environmental
stresses and pathogens. The following list includes the pathogens which cause diseases on
most potted foliage plants. Production of new crops can be aided if diseases of that crop
are known and control measles elected prior to an outbreak. Further information on a
disease can usually be obtained by consulting one or more of the references listed below.
Unfortunately not all diseases listed have been adequately described. In either case, the
most current source of information :i a general reference can be found in reference #2.
Specific information on pesticide efiicaty. and phytotoxicity can be found in references #3
and #4.

b general References

1. Alfieri, S.A., Jr., Langdlon,K.R., Wehlburg, C., and Kimbrough, J.W. 1984. Index
of plant diseases in Florida, Fla. Dep. Agric. Consumer Serv. Div. Plant Ind., Bull.
11 (rev. 1984). 389 pp.
2. Chase, A.R. 1987. Compendium of Ornamental Foliage Plant Diseases. American
Phytopathological Society Press, St. Paul. 92 pp.
3. Chase, A. R. 1989. Index for fungicide-bactericide research at CFREC-Apopka,
1981-1989. Nursery Digest 24(4):54-56.
4. Chase, A. R. 1990. Phytotoxicity of bactericides and fungicides on some ornamentals
1990 update. Nursery Digest
5. Fletcher, J. T. 1984. Diseases of Greenhouse Plants. Longman Group Limited,
Essex, England, 351 pp.
6. Forsberg, J.L. 1975. Diseases of Ornamental Plants. 2nd ed. University of Illinois
Press, Urbana. 219 pp.
7. Pirone, P.P. 1978. Diseases and Pests of Ornamental Plants. 5th ed. John Wiley &
Sons, New York. 566 pp.
8. Strider, D.L., ed. 1985. Diseases of Floral Crops, Vol. 2. Praeger
Scientific, New York. 638 pp.
9. Westcott, C. 1971. Plant Disease Handbook. 3rd ed. Van Nostrand Reinhold, New
York, 843 pp.









Table 1. Listing of diseases of foliage plants by host.

Plant Disease Pathogen (s)

Aechmea fasciata Anthracnose Colletotrichum sp.
(Urn plant, Bromeliad) Bacterial leaf spot Erwinia carotovora subsp. carotovora
Exserohilum leaf spot Exserohilum rostratum
Rhizoctonia leaf spot Rhizoctonia solani

Aeschynanthus pulcher Botrytis blight Botrytis cinerea
(Lipstick vine) Corynespora leaf spot Corynespora cassiicola
Myrothecium leaf spot Myrothecium roridum
Phytophthora stem rot Phytophthora parasitica
Tobacco mosaic Tobacco mosaic virus

Aglaonema spp. Bacterial leaf spot Erwinia chrysanthemi
(Chinese evergreen Pseudomonas cichorii
and others) Xanthomonas campestris pv. dieffenbachiae
Colletotrichum leaf Colletotrichum sp.
spot anthracnosee)
Dasheen mosaic Dasheen mosaic virus
Fusarium stem rot Fusarium solani
Myrothecium leaf spot Myrothecium roridum
Phytophthora stem rot Phytophthora sp.
Pythium root rot Pythium spp.
Rhizoctonia stem and Rhizoctonia (binucleate)
root rot
Soft rot Erwinia carotovora subsp. carotovora
Southern blight Sclerotium rolfsii

Anthurium spp. Anthracnose and Colletotrichum gloeosporioides
(Tailflower) spadix blight
Bacterial leaf spot Pseudomonas cichorii
Bacterial blight Xanthomonas campestris pv. dieffenbachiae
Burrowing nematode Radopholus similis
Dasheen mosaic Dasheen mosaic virus
Foliar nematode Aphelenchoides spp.
Pythium root rot Pythium spp.
Rhizoctonia aerial blight Rhizoctonia solani
Soft rot Erwinia carotovora subsp. carotovora









Aphelandra squarrosa Aphelandra stem gall Nectriella pironii (Kutilakesa)
(Zebra plant)
Bacterial leaf spot Xanthomonas campestris pv. unnamed
Botrytis blight Botrytis cinerea
Corynespora leaf spot Corynespora cassiicola
Mosaic Cucumber mosaic virus
Myrothecium leaf spot Myrothecium roridum
Phytophthora stem rot Phytophthora parasitica
Rhizoctonia stem rot Rhizoctonia solani
Southern blight Sclerotium rolfsii
Tomato spotted wilt Tomato spotted wilt virus

Araucaria heterophylla Bleeding canker Dothiorella sp.
(Norfolk Island pine) Colletotrichum needle Colletotrichum derridis
blight
Cylindrocladium root rot Cylindrocladium sp.
Pythium root rot Pythium spp.
Rhizoctonia root rot or Rhizoctonia (binucleate)
needle blight

*Asplenium nidus Bacterial leaf spot Pseudomonas asplenii
(Bird's-nest fern) Pseudomonas gladioli
Foliar nematode Aphelenchoides fragariae
Rhizoctonia aerial blight Rhizoctonia solani AG1

Begonia spp. Bacterial blight Xanthomonas campestris pv. begoniae
Myrothecium blight Myrothecium roridum
Pythium root rot Pythium sp.
Rhizoctonia stem and Rhizoctonia solani AG4
root rot

Brassaia actinophylla Alternaria leaf spot Alternaria panax
(Schefflera, Umbrella Bacterial leaf spot Pseudomonas cichorii
tree) Erwinia chrysanthemi
Cercospora leaf spot Cercospora spp.
Colletotrichum leaf spot Colletotrichum sp.
anthracnosee)
Phytophthora leaf spot Phytophthora parasitica var. nicotianae
Pythium root rot Pythium splendens









Plant Disease Pathogen (s)

Rhizoctonia aerial blight Rhizoctonia solani
Root knot nematode Meloidogyne spp.
Seedling blight Pythium splendens
Southern blight Sclerotium rolfsii
Tomato spotted wilt Tomato spotted wilt virus
Xanthomonas leaf spot Xanthomonas campestris pv. hederae

Cacti Cactus cyst nematode Cactodera cacti
Colletotrichum stem rot Colletotrichum gloeosporioides
Drechslera stem rot Drechslera cactivora
Erwinia stem rot Erwinia spp.
Virus Cactus virus X

Caladium x hortulanum Bacterial leaf spot and Enrwinia carotovora subsp. carotovora
(Fancy-leaved caladium) soft rot
Dasheen mosaic Dasheen mosaic virus
Fusarium corm rot Fusarium solani
Lesion nematode Pratylenchus spp.
Pythium root rot Pythium myriotylum
Rhizoctonia aerial blight Rhizoctonia (binucleate)
Southern blight Sclerotium rolfsii
Xanthomonas leaf spot Xanthomonas campestris pv. dieffenbachiae

Calathea spp. Alternaria leaf spot Altemaria altemata
Burrowing nematode Radopholus similis
Cucumber mosaic Cucumber mosaic virus
Drechslera leaf spot Drechslera setariae
Fusarium root rot Fusarium oxysporum
Pseudomonas leaf spot Pseudomonas cichorii

Caryota mitis Bacterial leaf blight Pseudomonas avenae (= P. alboprecipitans)
(Fish-tail palm) Damping off Fusarium spp.
Pythium spp.
Drechslera leaf spot Drechslera setariae
Exserohilum leaf spot Exserohilum rostratum
Lethal yellows Mycoplasma-like organism

Chamaedorea spp. Burrowing nematode Radopholus similis
(Parlor palm, Florida Drechslera leaf spot Drechslera setariae
hybrid palm) Exserohilum leaf spot Exserohilum rostratum









Pathogen (h


Gliocladium blight Gliocladium vermosceni
Lesion nematode Pratylenchus spp.
Phytophthora blight Phytophthora sp.
Seedling root rot Fusarium spp.
Pythium spp.

Chrysalidocarpus lutescens Damping off Fusarium spp.
(Areca palm) Drechslera leaf spot Drechslera setariae
Exserohilum leaf spot Exserohilum rostratum
rlinfl-dilim stpm rnt Glinrldadium vermosceni


Phaeotrichoconis leaf sy
Sclerotinia blight

Anthracnose
Botrytis blight
Downy mildew
Powdery mildew
Rhizoctonia aerial bligl
and root rot
Root rot
Southern blight

Anthracnose
Bacterial leaf spot
Crown gall
I pcinn nipmntntd.


it Phaeotrichoconis crotalariae
Sclerotinia homeocarpa

Colletotrichum sp. (Glomerella cingulata)
Botrytis cinerea
Plasmopara sp.
Oidium sp.
Rhizoctonia (binucleate)

Pythium spp.
Sclerotium rolfsii

Glomerella cingulata
Xanthomonas campestris pv. poinsettiicola
Agrobacterium tumefaciens
Prntvlpnh'huv rnffpan


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Stem gall and canker Nectriella pironii (Kutilakesa)

Cordyline terminals Anthracnose Glomerella cingulata
(Ti plant) Cercospora leaf spot Cercospora sp.
or false rust
Erwinia stem and root rot Erwinia carotovora subsp. carotovora
Enrwinia chrysanthemi
Lesion nematode Pratylenchus spp.
Phyllosticta leaf spot Phyllosticta draconis
Phytophthora leaf spot Phytophthora parasitica
Southern blight Sclerotium rolfsii


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Plant Disease Pathogen (s)

Cryptanthus sp. Colletotrichum leaf spot Colletotrichum sp.
(Bromeliad, Earth star)

Dieffenbachia spp. Bacterial leaf spot Pseudomonas cichorii
(Dumb cane) Xanthomonas campestris pv. dieffenbachiae
Brown leaf spot Leptosphaeria sp.
Cephalosporium leaf spot Cephalosporium cinnamomeum
Dasheen mosaic Dasheen mosaic virus
Erwinia blight and Erwinia carotovora subsp. carotovora
leaf spot Erwinia chrysanthemi
Fusarium stem rot Fusarium oxysporum
Fusarium solani
Glomerella leaf spot Glomerella cingulata (Colletotrichum spp.)
Lesion nematode Pratylenchus spp.
Myrothecium leaf spot Myrothecium roridum
Phytophthora leaf spot Phytophthora parasitica var.nicotianae
Pythium root rot Pythium spp.
Southern blight Sclerotium rolfsii
Tomato spotted wilt Tomato spotted wilt virus

Dracaena spp. Bacterial leaf spot Erwinia carotovora subsp. carotovora
Erwinia chrysanthemi
Erwinia herbicola
Pseudomonas sp.
Botrytis blight Botrytis cinerea
Colletotrichum leaf spot Colletotrichum sp.
Fusarium leaf spot and Fusarium moniliforme
stem rot
Lesion nematode Pratylenchus spp.
Phyllosticta leaf spot Phyllosticta draconis
Phytophthora leaf spot Phytophthora parasitica
Rhizoctonia leaf spot Rhizoctonia (binucleate)
Soft rot Erwinia carotovora subsp. carotovora
Southern blight Sclerotium rolfsii
Stem rot Aspergillus niger

Epipremnum aureum Bacterial leaf spot Erwinia spp.
(Pothos) Pseudomonas cichorii
Foot rot Rhizoctonia solani AG4









Want Disease Pathogen (s)

Pythium root rot Pythium splendens
Rapid decay (soft rot) Erwinia carotovora subsp. carotovora
Root knot nematode Meloidogyne spp.
Southern blight Sclerotium rolfsii

Fatsia japonica Alternaria leaf spot Altemaria panax
(Japanese aralia) Bacterial leaf spot Pseudomonas cichorii
Xanthomonas campestris pv. hederae
Pythium root rot Pythium splendens
Phytophthora stem rot Phytophthora sp.
Rhizoctonia aerial blight Rhizoctonia solani
Southern blight Sclerotium rolfsii

Ficus benjamin Corynespora leaf spot Corynespora cassiicola
(Weeping fig) Crown gall Agrobacterium tumefaciens
Lesion nematode Pratylenchus spp.
Phomopsis dieback Diplodia sp.
Phomopsis sp.
Southern blight Sclerotium rolfsii
Verticillium wilt Verticillium albo-atrum
Xanthomonas leaf spot Xanthomonas campestris pv. fici

Ficus elastica Cercospora leaf spot Cercospora sp.
(India Rubber tree) Colletotrichum leaf spot Colletotrichum gloeosporioides
Crown gall Agrobacterium tumefaciens
Foliar nematode Aphelenchoides besseyi
Gray mold Botrytis cinerea
Lesion nematode Pratylenchus spp.
Southern blight Sclerotium rolfsii

Fittonia verschaffeltii Biden's mottle Biden's mottle virus
(Nerve plant) Rhizoctonia aerial blight Rhizoctonia solani AG4
Southern blight Sclerotium rolfsii
Xanthomonas leaf spot Xanthomonas campestris pv. unnamed

Gynura aurantiaca White mold Sclerotinia sp.
(Purple velvet plant) Pythium root rot Pythium sp.










ledera helix Bacterial leaf spot Xanthomonas campestris pv. hederae
(English ivy) Botrytis blight Botrytis cinerea
Colletotrichum leaf spot Colletotrichum trichellum
Phyllosticta leaf spot Phyllosticta concentrica
Phytophthora leaf spot Phytophthora palmivora
Phytophthora root rot Phytophthora spp.
Rhizoctonia aerial blight Rhizoctonia solani AG4
Southern blight Sclerotium rolfsii

lowea sp. Cylindrocladium leaf spot Cylindrocladium sp.
(Kentia palm) Damping off Fusarium spp.
Pythium spp.
Drechslera leaf spot Drechslera setariae
Exserohilum leaf spot Exserohilum rostratum

Ioya camosa Botrytis blight Botrytis cinerea
"N', .... ",t) Cercospora leaf spot Cercospora sp.
Rhizoctonia aerial blight Rhizoctonia solani











Myrothecium leaf spot Myrothecium roridum
Phyllosticta leaf spot Phyllosticta sp.
Phytophthora stem and Phytophthora parasitica
root rot
Pythium root rot Pythium splendens
Rhizoctonia aerial blight Rhizoctonia spp.
Ring spot unidentified virus
Southern blight Sclerotium rolfsii
Verticillium wilt Verticillium dahliae

Wilodendron spp. Bacterial leaf spot Pseudomonas cichorii
Botrytis blight Botrytis cinerea
Cercospora leaf spot Cercospora sp.
Colletotrichum leaf spot Colletotrichum sp.
Dasheen mosaic Dasheen mosaic virus
Dactylaria leaf spot Dactylaria humicola
Erwinia blight Erwinia carotovora subsp. carotovora
Erwinia chrysanthemi
Myrothecium leaf spot Myrothecium roridum
Phytophthora leaf spot Phytophthora parasitica var. nicotianae
Pythium root rot Pythium spp.
Red edge Xanthomonas campestris pv. dieffenbac
Rhizoctonia aerial blight Rhizoctonia (binucleate)
Root knot nematode Meloidogyne spp.
Soft rot Erwinia carotovora subsp. carotovora
Southern blight Sclerotium rolfsii

lea spp. Bacterial leaf spot Xanthomonas campestris.pv. unnamed
,Aluminum plant Colletotrichum blight Colletotrichum capisci
and others) Myrothecium leaf spot Myrothecium roridum
Phytophthora blight Phytophthora parasitica
Rhizoctonia aerial blight Rhizoctonia solani AG1 and AG4
Southern blight Sclerotium rolfsii

atycerium bifurcatum Bacterial leaf spot Pseudomonas cichorii
(Staghorn fern) Pseudomonas gladioli
Rhizoctonia aerial blight Rhizoctonia (binucleate)









'lant Disease


'olyscias spp. Alternaria leaf spot Alternaria panax
(Aralia) Anthracnose Colletotrichum spp.
Bacterial leaf spot Pseudomonas cichorii
Xanthomonas campestris pv. hederae
Rhizoctonia aerial blight Rhizoctonia (binucleate)
Southern blight Sclerotium rolfsii

'adermachera sinica Corynespora leaf spot Corynespora cassiicola
(China-doll) Myrothecium leaf spot Myrothecium roridum
Phytopshtora stem rot Phytophthora parasitica
Rhizoctonia stem and Rhizoctonia solani AG4
root rot

Jhapis sp. Brown leaf spot or Pseudocercospora rhapisicola
(Lady finger palm) Cercospora leaf spot
Damping off Fusarium spp.
Pythium spp.
Drechslera leaf spot Drechslera setariae
Exserohilum leaf spot Exserohilum rostratum

'hoeo spathacea Commelina mosaic Commelina mosaic virus
(Oyster plant) Pythium root rot Pythium spp.
Tan leaf spot Curvularia eragrostidis
Tobacco mosaic Tobacco mosaic virus
Tradescantia mosaic Tradescantia virus

aintpaulia ionantha Botrytis blight Botrytis cinerea
(African violet) Corynespora leaf spot Corynespora cassiicola
Erwinia blight Erwinia chrysanthemi
Foliar nematode Aphelenchoides spp.
Phytophthora blight Phytophthora parasitica
Powdery mildew Oidium sp.
Tomato spotted wilt Tomato spotted wilt virus

ansevieria trifasciata Red leaf spot Fusarium moniliforme
(Mother-in-law tongue) Root knot nematode Meloidogyne incognita
Soft rot Erwinia carotovora subsp. carotovora
Southern blight Sclerotium rolfsii
Stem rot Aspergillus niger










Disease

Alternaria leaf spot
Bacterial leaf spot


Cercospora leaf spot
Rhizoctonia aerial blig
Southern blight

Cactus cyst nematode


Pathogen (s)

Altemaria panax
Erwinia chrysanthemi
Pseudomonas cichorii
Xanthomonas campestris pv. hederae
Cercospora sp.
Rhizoctonia solani
Sclerotium rolfsii

Cactodera cacti


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Christmas cacti)
Christmas cacti)


Fusarium stem rot
Phytophthora stem rot
Soft rot
Virus

Colletotrichum leaf
and ctnm rmt


Fusarium oxysporum
Phytophthora sp.
Erwinia carotovora subsj
Cactus virus X

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Cylindrocladium root an(
petiole rot
Dasheen mosaic


Cylindrocladium spathipl


TI JLVI I ~ ,JLULI 1 J ..I JL AY yI L&r &&LLII r IIj r&I I4 r&
Phytophthora leaf spot Phytophthora sp.
Pythium root rot Pythium sp.
Rhizoctonia aerial blight Rhizoctonia solani AG4
Rhizoctonia root rot Rhizoctonia (binucleate)
Southern blight Sclerotium rolfsii

Syngonium podophyllum Bacterial leaf spot Erwinia carotovora subsp. carotovora
(Nephthytis) Erwinia chrysanthemi
Pseudomonas cichorii
Bacterial blight Xanthomonas campestris pv. dieffenbachiae
Black cane rot or Ceratocystis fimbriata
Ceratocystis blight
Burrowing nematode Radopholus similis
Cephalosporium leaf spot Acremonium crotocinigenum


Vwant


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Plant Disease Pathogen (s)

Colletotrichum leaf spot Colletotrichum sp.
Erwinia blight Erwinia chrysanthemi
Myrothecium leaf spot Myrothecium roridum
Pythium root rot Pythium spp.
Rhizoctonia aerial blight Rhizoctonia solani
Soft rot Erwinia carotovora subsp. carotovora
Southern blight Sclerotium rolfsii

Tradescantia spp. Tradescantia mosaic Tradescantia virus
(Spiderwort)

Yucca spp. Brown leaf spot Coniothyrium concentricum
(Soft-tip Yucca and Gray leaf spot Cytosporina sp.
Spanish bayonet) Southern blight Sclerotium rolfsii

Zebrina pendula Tobacco mosaic Tobacco mosaic virus
(Wandering Jew) Tradescantia mosaic Tradescantia virus




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