Floriculture Disease Links

Compiled by Marcia Stefani, Ag. Research Specialist, Hampton Roads AREC

View Links By:

View by Crop

View by Disease

General Plant/Disease

Annual Vinca, Madagascar periwinkle (Catharanthus)

Control Strategies for Phytophthora Shoot Blight on Bedding Plants, A. K. Hagan, B. Behe, and J. R. Akridge, Auburn University
http://www.aces.edu/department/ipm/PP400.htm

Diseases of Annual Vinca in the Greenhouse and Landscape, Austin Hagan, Extension Plant Pathologist, Auburn University
http://www.aces.edu/department/ipm/test.htm

Aster

Aster Yellows, Kansas State University Commercial Specialty Cut Flower Production
http://www.oznet.ksu.edu/library/hort2/Samplers/mf1086.htm

Aster Leafhopper and Aster Yellows, Ontario Ministry of Agriculture Factsheet
http://www.gov.on.ca/OMAFRA/english/crops/facts/98-057.htm

Chrysanthemum

Bacterial Blights of Chrysanthemum, Diseases of Floral Crops, University of Massachusetts Extension. Dr. Robert L. Wick, Department of Microbiology
http://www.umass.edu/umext/programs/agro/floriculture/floral_facts/mumbac.htm

Fuchsia

Fuchsia Rust, Diseases of Floral Crops, University of Massachusetts Extension. Dr. Robert L. Wick, Department of Microbiology
http://www.umass.edu/umext/programs/agro/floriculture/floral_facts/fuchsi~1.htm

Geranium (Pelargonium)

Bacterial Blight of Geranium, Margery Daughtrey, Cornell University
http://www.agdia.com/testing/pathogen.leaflets/bacterial_blight-daughtrey.html

Bacterial Blight of Geranium, Diseases of Floral Crops, University of Massachusetts Extension. Dr. Robert L. Wick, Department of Microbiology
http://www.umass.edu/umext/programs/agro/floriculture/floral_facts/geranx~1.htm

Bacterial Diseases on Geranium, University of Connecticut IPM
http://www.hort.uconn.edu/ipm/greenhs/htms/gerbacdis.htm

Edema of Geraniums, Dr. Gary W. Moorman, Dept. of Plant Pathology.The Pennsylvania State University Extension
http://www.cas.psu.edu/docs/CASDEPT/PLANT/ext/fact.html

Leaf Spot and Stem Rot (Bacterial Blight) of Geranium (Pelargonium spp.), North Dakota State University Extension
http://www.ext.nodak.edu/extpubs/plantsci/landscap/pp739w.htm

Minimizing Edema on Ivy Geraniums, George Wulster, Rutgers Cooperative Extension
http://AESOP.RUTGERS.EDU/~Floriculture/publications/edema.htm

Gladiolus

Gladiolus Diseases, F.L. Pfleger, J.D. Pokorny, and S.L. Gould, University of Minnesota Extension
http://www.extension.umn.edu/distribution/horticulture/DG1154.html

Hollyhock (Alcea)

Hollyhock Rust, Mary Ann Hansen, Extension Plant Pathologist, Virginia Tech
http://www.ext.vt.edu/pubs/plantdiseasefs/450-613/450-613.html

Impatiens

Diseases of Impatiens, (Impatiens wallerana) and New Guinea impatiens (Impatiens hybrids), Margery Daughtrey
http://www.scisoc.org/resource/common/names/impatien.htm

Iris

Culture of Iris, Donald H. Steinegger, University of Nebraska Extension
http://www.ianr.unl.edu/pubs/horticulture/g833.htm

Iris Leaf Spot, Mary Ann Hansen, Extension Plant Pathologist, Virginia Tech http://www.ext.vt.edu/pubs/plantdiseasefs/450-600/450-600.html

Kalanchoe

Kalanchoe disorders and diseases, A guide to the identification of problems in Kalanchoe production, Balfour Greenhouses
http://www.ont.net/balfour/page7.htm

Narcissus

Narcissus Pests and Diseases, Clemson University
http://virtual.clemson.edu/groups/hort/sctop/geophyte/daffpest.htm

Pansy (Viola x wittrockiana)

Black Root Rot of Pansy, Auburn University Extension
http://www.aces.edu/department/ipm/brrpansy.htm

Peony

Botrytis Blight of Peony, Mary Ann Hansen, Extension Plant Pathologist, Virginia Tech
http://www.ext.vt.edu/pubs/plantdiseasefs/450-602/450-602.html

Paeonia Diseases, Michigan State University Extension
http://www.msue.msu.edu/msue/imp/mod03/01700661.html

Poinsettia

Early Season Poinsettia Diseases and Management, Chuck Powell, Plant Health Advisory Services
http://www.ofa.org/bulletins/1995%20Bulletins/June%2095/0695powell.htm

Poinsettia Disease Control Outlines, University of California
http://www.ipm.ucdavis.edu/PMG/r280112511.html

Poinsettias: Disease Prevention and Control, Dr. Sharon M. Douglas, Department of Plant Pathology and Ecology, The Connecticut Agricultural Experiment Station
http://www.state.ct.us/caes/FactSheetFiles/PlantPathology/fspp043s.htm

Poinsettia Diseases, Ohio State University
http://melissa560.tripod.com/index.htm

Poinsettia Scab (Spot Anthracnose), Margery Daughtrey, Cornell University
http://AESOP.RUTGERS.EDU/~floriculture/grower/pscabmdgw.htm

Tulip

Fire or Botrytis Blight of Tulip, Mary Ann Hansen, Extension Plant Pathologist, Virginia Tech
http://www.ext.vt.edu/pubs/plantdiseasefs/450-607/450-607.html

Back to Top

Botrytis (see Gray Mold)

Cottony Rot

UC Pest Management Guidelines
http://www.ipm.ucdavis.edu/PMG/r280100611.html

Crown Gall

UC Pest Management Guidelines
http://www.ipm.ucdavis.edu/PMG/r280101311.html

Of Ornamentals, Jacqueline Mullen & Austin Hagan, Auburn University
http://www.aces.edu/department/ipm/cgo.htm

Damping-Off

University of Connecticut IPM
http://www.hort.uconn.edu/ipm/greenhs/htms/dampofgh.htm

UC Pest Management Guidelines Floriculture and Ornamental Nurseries
http://www.ipm.ucdavis.edu/PMG/r280100111.html

Diseases of Floral Crops, University of Massachusetts Extension. Dr. Robert L. Wick, Department of Microbiology
http://www.umass.edu/umext/programs/agro/floriculture/floral_facts/dampoff.htm

Downy Mildew

Downy Mildew, UC Pest Management Guidelines Floriculture and Ornamental Nurseries
http://www.ipm.ucdavis.edu/PMG/r280101111.html

Fusarium Wilt

UC Pest Management Guidelines Floriculture and Ornamental Nurseries
http://www.ipm.ucdavis.edu/PMG/r280100811.html

**Gray Mold (Botrytis)**

http://www.umass.edu/umext/programs/agro/floriculture/floral_facts/botrytis.htm

Diseases of Floral Crops, University of Massachusetts Extension. Dr. Robert L. Wick, Department of Microbiology
http://www.umass.edu/umext/programs/agro/floriculture/floral_facts/botrytis.htm

Identification and Control of Botrytis Blight on Floral Crops and Woody Ornamentals, Austin Hagan, Extension Plant Pathologist, Auburn University,
http://www.aces.edu/department/ipm/anr753.htm

UC Pest Management Guidelines Floriculture and Ornamental Nurseries
http://www.ipm.ucdavis.edu/PMG/r280100511.html

Gray Mold, University of Connecticut IPM
http://www.hort.uconn.edu/ipm/greenhs/htms/graymold.htm

Oedema

Cornell University
http://plantclinic.cornell.edu/greenhouse/oedema/oedema.htm

Phytopthora Root and Crown Rots

Phytophthora Root and Crown Rots, UC Pest Management Guidelines Floriculture and Ornamental Nurseries
http://www.ipm.ucdavis.edu/PMG/r280100311.html

Phytoplasmas and Spiroplasmas, UC Pest Management Guidelines Floriculture and Ornamental Nurseries
http://www.ipm.ucdavis.edu/PMG/r280101511.html

Powdery Mildew

UC Pest Management Guidelines Floriculture and Ornamental Nurseries
http://www.ipm.ucdavis.edu/PMG/r280101011.html

Powdery Mildew in Greenhouses, University of Connecticut Integrated Pest Management Program
http://www.canr.uconn.edu/ces/ipm/greenhs/htms/powdmlgh.htm

Pythium Root Rot

UC Pest Management Guidelines Floriculture and Ornamental Nurseries
http://www.ipm.ucdavis.edu/PMG/r280100211.html

Pythium Root Rot, Dr. Gary W. Moorman, Penn State University Extension
http://www.cas.psu.edu/docs/CASDEPT/PLANT/ext/pythrrot.html

Thielaviopsis Root Rot (Black Root Rot)

Thielaviopsis Root Rot, UC Pest Management Guidelines Floriculture and Ornamental Nurseries
http://www.ipm.ucdavis.edu/PMG/r280100411.html

Black Root Rot of Greenhouse Floral Crops (Thielaviopsis), Stephen Nameth, Ohio State University Extension
http://ohioline.osu.edu/hyg-fact/3000/3066.html

Rust

UC Pest Management Guidelines Floriculture and Ornamental Nurseries
http://www.ipm.ucdavis.edu/PMG/r280101211.html

Southern Blight

UC Pest Management Guidelines Floriculture and Ornamental Nurseries
http://www.ipm.ucdavis.edu/PMG/r280100711.html

Verticillium Wilt

UC Pest Management Guidelines Floriculture and Ornamental Nurseries
http://www.ipm.ucdavis.edu/PMG/r280100911.html

Viruses and Viroids

Impatiens Necrotic Spot Virus
http://www.umass.edu/umext/programs/agro/floriculture/floral_facts/insvtswv.htm

Virus Diseases of Greenhouse Floral Crops, Stephen Nameth, Ohio State University Extension
http://ohioline.osu.edu/hyg-fact/3000/3065.html

Viruses and Viroid Diseases, UC Pest Management Guidelines Floriculture and Ornamental Nurseries
http://www.ipm.ucdavis.edu/PMG/r280100911.html

Bedding Plants:

Bedding Plant Diseases, Dr. Gary W. Moorman, The Pennsylvania State University Extension
http://www.cas.psu.edu/docs/CASDEPT/PLANT/ext/bedding.html

Common Diseases of Bedding Plants, Dr. Sharon M. Douglas, Department of Plant Pathology and Ecology, The Connecticut Agricultural Experiment Station
http://www.state.ct.us/caes/FactSheetFiles/PlantPathology/fspp009s.htm

Greenhouse Crops:

Common Diseases of Greenhouse Floriculture Crops, Dr. A.B. Gould, Rutgers Cooperative Extension
http://AESOP.RUTGERS.EDU/~Floriculture/publications/abgcghdi.htm

Preventing Seedling Diseases in the Greenhouse, Daniel S. Egel, Extension Plant Pathologist, Purdue
http://www.agcom.purdue.edu/AgCom/Pubs/BP/BP-61/BP-61.html

Diseases of Greenhouse Floriculture Crops, A. B. Gould, Ph. D., Rutgers Cooperative Extension
http://www.cook.rutgers.edu/~floriculture/publications/abgcghdi.htm

Diseases of Greenhouse Ornamental Crops, Texas A&M University
http://hortipm.tamu.edu/ipmguide/cont.html?

Management of Greenhouse Diseases, NDSU Extension Service, NDSU
http://www.ag.ndsu.nodak.edu/aginfo/pesticid/publications/GreenH/gpm-9.htm

Root Diseases of Greenhouse Crops, Diseases of Floral Crops, University of Massachusetts Extension http://www.umass.edu/umext/programs/agro/floriculture/floral_facts/greenh~1.htm

Diseases of Floriculture and Ornamental Nurseries, University of California Pest Management Guidelines
http://www.ipm.ucdavis.edu/PMG/r280190111.html

Bacterial Leaf Diseases of Foliage Plants, F.L. Pfleger and S.L. Gould, University of Minnesota Extension
http://www.extension.umn.edu/distribution/horticulture/DG1170.html

Controlling Insects and Diseases on Azaleas and Rhododendrons, Patricia P. Cobb, Extension Entomologist; Austin K. Hagan, Extension Plant Pathologist
http://www.aces.edu/department/ipm/Azalea.htm

General Plant/Disease:

Betrock’s hortworld.com: Common Diseases and Disorders of Foliage Plants, A.R.Chase

http://www.hortworld.com/foliageresearch.htm

An Online Guide to Plant Disease Control, Oregon State University Extension

http://plant-disease.orst.edu

Disease Management, NCSU Floriculture Information Center
http://www.ces.ncsu.edu/depts/hort/floriculture/crop/crop_disease.htm

Drip Chemigation: Injecting Fertilizer, Acid and Chlorine
http://www.ces.uga.edu/pubcd/b1130-w.html

Effect of a Novel P Fertilizer on Production on Florist Azalea and Pythium Resistance, Jonathan Lynch, Department of Horticulture, Pennsylvania State University
http://www.endowment.org/pt97_03.htm

Foliar Fungicides, UC Pest Management Guidelines Floriculture and Ornamental Nurseries
http://www.ipm.ucdavis.edu/PMG/r280190311.html

IPM for Bedding Plants, Scouting Methods, Cornell University
http://www.nysaes.cornell.edu/ipmnet/ny/ornamentals/bp.guide98/scout.html

IPM Scouting and Decision Making
http://www.umass.edu/umext/programs/agro/floriculture/floral_facts/ipmscout.htm

Management of Soil Pathogens, UC Pest Management Guidelines Floriculture and Ornamental Nurseries
http://www.ipm.ucdavis.edu/PMG/r280190211.html

Northeast Greenhouse IPM Notes
http://www.rce.rutgers.edu/pubs/

Ohio State University Factsheet Databasehttp://plantfacts.ohio-state.edu/

Penn State University Plant Disease Fact Sheets
http://www.cas.psu.edu/docs/CASDEPT/PLANT/ext/fact.html

Problem Identification Aids: Flowers, Michigan State University Extension http://www.msue.msu.edu/msue/imp/flowlist.html

Rutgers University Greenhouse IPM Notes http://www.rce.rutgers.edu/pubs/greenhouseipmnotes/index.html

The Flower Fields Disease Control Chart
http://www.ecke.com/html/fastfax/pdfs/FF%20disease.pdf

Suggestions For Management Of Tomato Spotted Wilt (TSWV) AndImpatiens Necrotic Spot Tospoviruses (INSV) In The Greenhouse, Margery Daughtrey, John Sanderson, Dan Gilrein, Cornell University
http://www.agdia.com/testing/pathogen.leaflets/tswv_sheet_4=99.html

Using Indicator Plants to Detect Tospoviruses, University of Connecticut IPM
http://www.hort.uconn.edu/ipm/greenhs/htms/gerbacdis.htm

Virus Indicator Plants
http://www.umass.edu/umext/programs/agro/floriculture/floral_facts/virusind.htm

Back to Top