The disease triangle
The Disease Triangle was developed by the University of Florida's School of Forest Resources & Conservation (SFRC) Extension Programs.
This activity introduces students to an important forest health concept—the disease triangle. Students participate in an outdoor game where they act as pathogenic organisms infecting “trees” in a model forest. Through this simulation of the dynamics of infection they learn about the importance of pathogen, host, and environmental specificity—the three prerequisites necessary for disease occurrence in an organism.
The disease triangle is an important tool for understanding the dynamics of infectious disease in populations, as much for trees in a forest as for people in a city. Management of disease is effectively carried out by manipulating at least one side of the triangle to reduce the likelihood of infection.
Please note all credits go to the University of Florida's School of Forest Resources & Conservation (SFRC) Extension Programs. Plant Heroes did not create any of the materials shared here.