TOFG-all

Managing Plant Pathogens

Part 1 – 382 | Unit 1.9
Instructor’s Demonstration 1 Outline

DEMONSTRATION OUTLINE

Proceed through as many samples as you have time for. Encourage student questions.

A. Diagnosis

1. Host


2. Type and extent of symptoms


3. How relatively useful the symptoms are for diagnosis


4. The importance of professional help, and lab analysis in accurate diagnosis


5. Discuss the danger of guessing

B. Provide illustrations of Pathogens or Characteristic Symptoms

C. Give a Synopsis of the Disease and Management Practices

1. The relative importance of actively managing the pathogen (i.e., potential agricultural
   and economic consequences of unchecked growth)


2. Biology: Life cycle and timing for intervention


3. Review of ecological disease management practices accepted under certified organic
   farming standards, using the disease triangle

a) Environmental manipulations

b) Host manipulations

c) Pathogen manipulations