Plant Disease Factsheets

Contact: Mary Ann Hansen, Extension Plant Pathologist, Department of Plant Pathology, Physiology and Weed Science, Virginia Tech

Updated December 2000

*Note: It is recommended that the PDF version of the factsheets be used to print from. A link to the PDF version of each factsheet is included at the bottom the factsheet file.

Listed By Type of Plant Listed By Title Search all Factsheets
  • Field Crops
  • Vegetables
  • Herbaceous Ornamentals
  • Woody Shrubs and Trees
  • Angular Leaf Spot of Cucumber
  • Anthracnose--A Fungal Disease of Shade Trees
  • Anthracnose on Snap Beans
  • Azalea Leaf and Flower Gall
  • Bacterial Spot of Pepper
  • Black Root Rot of Japanese Holly
  • Blossom End Rot of Tomato
  • Botrytis Blight of Peony
  • Brown Rot on Peach and Other Stone Fruits
  • Buckeye Rot of Tomato
  • Clubroot of Crucifers
  • Corn Smut
  • Crown Gall of Woody Ornamentals
  • Downy Mildew of Cucurbits
  • Early Blight of Tomatoes
  • Entomosporium Leaf Spot of Photinia
  • Fire or Botrytis Blight of Tulip
  • Fire Blight of Ornamentals
  • Foliar Diseases of Dogwood
  • Gray Leaf Spot Disease of Corn
  • Hollyhock Rust
  • Iris Leaf Spot
  • Juniper Tip Blights
  • Major Diseases of Boxwood
  • Phytophthora Root Rot of Rhododendron and Azalea
  • Plectosporium Blight of Cucurbits
  • Powdery Mildew of Cucurbits
  • Powdery Mildew of Ornamental Plants
  • Powdery Mildew-Resistant Woody Ornamentals
  • Problem-free Shrubs for Virginia Landscapes
  • Problem-free Trees for Virginia Landscapes
  • Reducing Pesticide Use in the Home Garden
  • Rose Black Spot
  • Rose Rosette Disease
  • Septoria Leaf Spot of Tomato
  • Sooty Mold of Conifers and Hardwoods
  • Timber Rot of Tomato
  • Verticillium Wilt of Shade Trees
  • Wire Stem and Bottom Rot of Cabbage
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    Photographs appearing in Plant Disease Factsheets are the property of Virginia Cooperative Extension or have been used by permission from others. Photographs may not be reproduced without permission of their owner.