Disease triangle

Question 1

true or false; disease results from an interaction between host, pathogen and environment

Answer 1

true

Question 2

Define host

Answer 2

plant population

Question 3

host interaction with the pathogen

Answer 3

important factors that affects the success of the infection are:

• plant host resistance
• susceptibility and the stage of development of the plant

Question 4

pathogen and its success

Answer 4

virulence of pathogen (relative capacity to cause disease)

and the type of life cycle

Question 5

what are the environmental factors

Answer 5

biotic antagonists:

• competitors
• hyperparasites
• antibiotic producers

Abiotic factors:

• soil
• water
• temp
• pH