disease triangle

What is the disease triangle?

• A model used to explain the relationships between the host, pathogen, and environment in plant disease development
• A model used to explain the relationships between plants, animals, and the environment in disease development
• A triangle used to treat diseases
• A triangle used to diagnose diseases

What is the role of the host in the disease triangle?

• To provide food for the pathogen
• To provide a suitable environment for the pathogen to grow
• To spread the disease
• To weaken the pathogen

What is the role of the pathogen in the disease triangle?

• To provide food for the host
• To weaken the host
• To provide a suitable environment for the host to grow
• To spread the disease

What is the role of the environment in the disease triangle?

• To weaken the host
• To provide a suitable environment for the host and pathogen to interact
• To provide food for the host and pathogen
• To spread the disease

Which of the following is an example of a biotic factor in the disease triangle?

• Pathogen
• Humidity
• Soil pH
• Temperature

Which of the following is an example of an abiotic factor in the disease triangle?

• Weeds
• Bacteria
• Fungi
• Temperature

Which of the following is an example of a cultural control method for plant diseases?

• Using crop rotation
• Planting resistant varieties
• Using biological control
• Using pesticides

Which of the following is an example of a chemical control method for plant diseases?

• Using pesticides
• Using biological control
• Planting resistant varieties
• Using crop rotation

Which of the following is an example of a biological control method for plant diseases?

• Using crop rotation
• Using pesticides
• Using biological control
• Planting resistant varieties

Which of the following is an example of a physical control method for plant diseases?

• Using hot water treatment
• Using pesticides
• Using biological control
• Planting resistant varieties