Chapter 23

Greenhouse Disease Management

(draft book excerpts)

Diseases are a major concern for greenhouse growers and can be a key limitation to profitable crop production. Disease management in greenhouses is critical because of the limited air circulation encouraged by tight spacing and constant irrigation. Furthermore, high humidity provides optimal conditions for reproduction of many fungal and bacterial pathogens. When disease management is neglected, pathogen populations build up and continue to increase as long as there is susceptible plant tissue available for infection and disease development. Successful crop production requires that crop diseases be managed so that the effects of diseases on the plants are minimized. The management of crop diseases is directed at preventing the establishment of diseases and minimizing the development and spread of any diseases that become established in the crop. The presence of diseases in greenhouses is a fact of crop production and growers must use all available options and strategies to avoid serious pest and disease problems.

Click on the following topics for more information on greenhouse disease management.

Topics Within This Chapter:

  • Types of Greenhouse Plant Diseases
  • Fungi
  • Bacteria
  • Viruses
  • Typical Plant Disease Symptoms
  • Leaf Spots
  • Rusts
  • Canker
  • Root Rots
  • Viral Diseases
  • Other Diseases
  • Fungal Diseases of Greenhouse Plants
  • Botrytis Blight
  • Disease Cycle
  • Symptoms
  • Cultural Management Strategies
  • Chemical Management Strategies
  • Downy Mildew
  • Disease Cycle
  • Symptoms
  • Cultural Management Strategies
  • Chemical Management Strategies
  • Fungal Leaf Spots
  • Disease Cycle
  • Symptoms
  • Cultural Management Strategies
  • Chemical Management Strategies
  • Fusarium Root and Stem Rot
  • Disease Cycle
  • Symptoms
  • Cultural Management Strategies
  • Chemical Management Strategies
  • Powdery Mildew
  • Disease Cycle
  • Symptoms
  • Cultural Management Strategies
  • Chemical Management Strategies
  • Pythium and Phytophthora Root Rot and Blight
  • Disease Cycle
  • Symptoms
  • Cultural Management Strategies
  • Chemical Management Strategies
  • Rhizoctonia Root and Crown Rot
  • Disease Cycle
  • Symptoms
  • Cultural Management Strategies
  • Chemical Management Strategies
  • Rusts
  • Disease Cycle
  • Symptoms
  • Cultural Management Strategies
  • Chemical Management Strategies
  • Sclerotinia Blight and Crown Rot
  • Disease Cycle
  • Symptoms
  • Cultural Management Strategies
  • Chemical Management Strategies
  • Thielaviopsis Root Rot
  • Disease Cycle
  • Symptoms
  • Cultural Management Strategies
  • Chemical Management Strategies
  • Bacterial Diseases of Greenhouse Plants
  • Bacterial Leaf Spots
  • Disease Cycle
  • Symptoms
  • Cultural Management Strategies
  • Viral Diseases of Greenhouse Plants
  • Symptoms
  • Cultural Management Strategies
  • Impatiens Necrotic Spot Virus (INSV)
  • Cucumber Mosaic Virus (CMV)
  • Tobacco Mosaic Virus (TMV)
  • Tomato Spotted Wilt Virus (TSWV)
  • References