B5.10 More about Plant Diseases

• What is Stunted Growth a sign of?

  Nitrate Deficiency
• What are spots on leaves a sign of?

  Black spot fungus (Found in roses)
• What is an example of decay in plants?

  Blights on potatoes
• What are growths a sign of?

  A bacterial infection
• What are Malformed Stems a sign of?

  Aphid infestation
• What is Discolouration a sign of?

  Magnesium deficiency, resulting in a lack of photosynthesis
• How do you identify a plant disease?

  • Looking it up in a manual or online
  • Taking infected plant to a laboratory to identify pathogen
  • Use a testing kit containing Monoclonal Antibodies