Penn State College of Agricultural Sciences Department of Plant Pathology





Plant Management Network




For more infp

Gary W. Moorman
111A Buckhout Laboratory
University Park, PA 16802
Phone: 814-863-7401
Email: gmoorman@psu.edu



The Pennsylvania State University
Cooperative Extension

Gary W. Moorman
Professor of Plant Pathology


This is a listing of fact sheets available on common diseases of plants frequently grown in greenhouses, interiorscapes, and in outdoor landscapes and nurseries in the northeastern U.S. Since many other diseases and disorders are known to occur and new diseases are recorded frequently, this compilation should not be considered complete. The main purpose of this publication is to provide information helpful in the diagnosis of diseases and to give some indication of what measures must be taken to manage the problem. All files are in PDF format, unless otherwise noted.

Notas sobre Enfermedades de Plantas en español

General Information Floral and Foliage Plants Woody Ornamental


General Information

Assessing the Threat of Disease in Greenhouses
Assessing the Threat of Disease in Nurseries
Bacterial Diseases of Ornamental Plants
Bacterial Wilt (Ralstonia solanacearum)
Bedding Plant Diseases
Biological Control of Plant Diseases in the Greenhouse
Black Root Rot (Thielaviopsis)
Botrytis
Cucumber Mosaic Virus
Cylindrocladium
Damping-Off
Diagnosing Poor Plant Health
Disinfesting Tools and Equipment
Downy Mildew
Fungal Root Rot and Fungicide Use
Fungicide Resistance
Heat Treatments to Control Soil-borne Pests
Inspecting Trees for Hazards
Key Plants and Key Diseases (Indoors)
Key Plants and Key Diseases
Over-fertilization of Potted Plants
Phytotoxicity
Powdery Mildew
Powdery Mildew by Host Plant Cross-List (New)
Pythium
Reference Material for Floricultural Crop Diseases
References for Arborists, Nurserymen, and Landscape Maintenance Workers
Rhizoctonia
Sources of Plant Disease (Greenhouse Production)
Sources of Plant Pathogens (Nursery Production)
Tobacco Mosaic Virus (TMV)
Virus Diseases
Weigh it Before You Spray It
What is Growing in My Landscape Mulch?


Floral and Foliage Plants

African Violet Diseases
Aglaonema Diseases
Aster Diseases
Bacterial Blight of Geraniums
Baptisia Diseases (New)
Begonia Diseases
Calceolaria
Carnation (Dianthus) Diseases
Catharanthus (Vinca)
Christmas Cactus Diseases
Chrysanthemum Diseases
Cineraria Diseases
Cordyline (Ti Plant) Diseases
Crassula (Jade Plant) Diseases
Cyclamen Diseases
Dahlia Diseases
Delphinium Diseases
Dieffenbachia Diseases
Dracaena Diseases
Easter Lily Diseases
Edema of Geraniums
English Ivy (Hedera)
Exacum Diseases
Fern Diseases
Ficus Diseases
Foliar Nematodes
Fuchsia Diseases
Gaillardia Diseases (New)
Gazania
Geranium Diseases
Gerbera Diseases
Gladiolus Diseases
Gloxinia Diseases
Goldenrod (Solidago) Diseases (New)
Grape Ivy (Cissus)
Gypsophila
Hemerocallis (Daylily) Diseases

Hydrangea Diseases
Impatiens Diseases
Impatiens Necrotic Spot Virus
Iris Diseases
Kalenchöe Diseases
Lily of the Valley (Convallaria) Diseases (New)
Maranta Diseases
Marigold Diseases
Narcissus Diseases
Norfolk Island Pine Diseases
Palm Diseases
Pansy Diseases
Petunia Diseases
Philodendron Diseases
Poinsettia Diseases
Pothos Diseases
Primula Diseases
Rudbeckia Diseases (New)
Schefflera (Brassaia) Diseases
Snapdragon (Antirrhinum) Diseases
Spathiphyllum Diseases
Statice Diseases
Syngonium Diseases
Tulip Diseases
Verbena Diseases
Zinnia Diseases


Woody Ornamental

Abiotic Diseases of Woody Ornamentals
Amelanchier (Shadbush, Serviceberry)
Anthracnose on Shade Trees
Arborvitae Diseases
Armillaria Root Rot
Ash Diseases
Azalea and Rhododendron Diseases
Bacterial Leaf Scorch
Bacterial Wetwood or Slime Flux
Beech Diseases
Black Knot
Boston Ivy (Parthenocissus) Disease
Boston Ivy Leaf Spot
Botryosphaeria Canker
Boxwood Diseases
Canker Stain in Sycamore and London Plane Tree
Cankers of Hardwood Deciduous Trees
Catalpa Diseases
Cedar-Apple and Related Rusts on Ornamentals
Cherry Diseases
Chestnut
Cotoneaster Diseases
Crabapple Diseases
Crown Gall
Cytospora Canker on Spruce
Dogwood
Douglas-Fir Diseases
Elm Diseases
English Ivy (Hedera) Diseases
Euonymus Diseases
Eutypella Canker on Maple
Fire Blight
Forsythia Diseases
Hackberry Disease
Hawthorn Diseases
Hemlock Diseases
Hickory Diseases
Holly Diseases
Honeysuckle Disease
Horsechestnut Disease
Insect-vectored Pathogens of Woody Ornamentals
Juniper Diseases
Juniper Twig Blight
Leucothoe Diseases
Lilac Diseases
Maple Diseases
Mountain Ash
Mountain Laurel Disease
Nectria Canker
Needlecast Diseases
Nematode-caused Diseases on Woody Ornamentals
Oak Diseases
Oak Leaf Blister
Oak Wilt
Pachysandra Disease
Phytophthora Root Rot on Woody Ornamentals
Pieris Disease
Pine Diseases
Plum Pox Virus in Ornamentals
Poplar Diseases
Privet Diseases
Pseudomonas Syringae
Pyracantha Diseases
Redbud Disease
Diagnosing Root Death on Woody Ornamentals
Rose Black Spot
Rose Diseases (Outdoors)
Scheduling Woody Ornamental Plant Disease Management Practices
Sphaeropsis (Diplodia) Tip Blight
Spruce Diseases
Sycamore
Taxus Diseases
Tree Diseases That Create Hazards
Tulip Poplar
Verticillium Wilt of Woody Ornamentals
Viburnum Diseases
Vinca
Walnut Anthracnose
Willow Diseases


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Last modified Tuesday, November 17, 2009

 

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