Podcast
Questions and Answers
Which of the following best defines plant disease?
Which of the following best defines plant disease?
- Any malfunctioning of host cells and tissues that results from continuous irritation by a pathogenic agent or environmental factor and leads to development of symptoms. (correct)
- Visible or invisible responses to a pathogen and/or an environmental factor.
- A dynamic and continuous process that involves interactions among the host, pathogen, and environment over time.
- A condition that occurs when a virulent pathogen, susceptible host, and favorable environment exist at the same time.
What is the disease triangle?
What is the disease triangle?
- A diagram that represents the interactions among the host, pathogen, and environment in the development of plant disease. (correct)
- A condition that occurs when a virulent pathogen, susceptible host, and favorable environment exist at the same time.
- A concept that describes the visible or invisible responses of plants to a pathogen and/or an environmental factor.
- A management strategy that involves integrating multiple approaches to control plant diseases.
What is the key requirement for disease to occur according to the disease triangle?
What is the key requirement for disease to occur according to the disease triangle?
- A virulent pathogen.
- A susceptible host.
- A favorable environment.
- All of the above. (correct)
What is integrative disease management?
What is integrative disease management?
How can the disease triangle be exploited in the management of plant diseases?
How can the disease triangle be exploited in the management of plant diseases?
Flashcards
Plant Disease
Plant Disease
A malfunctioning of host cells and tissues caused by continuous irritation from a pathogen or environmental factor, resulting in symptoms.
Disease Triangle
Disease Triangle
A model illustrating the relationship between the host plant, the pathogen, and the environment in disease development.
Key Requirement for Disease
Key Requirement for Disease
All three components of the disease triangle (host, pathogen, environment) must be present and favorable for disease to occur.
Integrative Disease Management
Integrative Disease Management
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Disease Triangle Management
Disease Triangle Management
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Study Notes
Plant Disease and Management
- Plant disease is best defined as the impairment of normal plant function, leading to adverse effects on plant growth, development, and productivity.
The Disease Triangle
- The disease triangle is a concept that describes the three essential components necessary for disease to occur: a susceptible host, a virulent pathogen, and a favorable environment.
Key Requirement for Disease to Occur
- The key requirement for disease to occur, according to the disease triangle, is the simultaneous presence of these three components.
Integrative Disease Management
- Integrative disease management involves the use of multiple approaches, including cultural, biological, genetic, and chemical controls, to manage plant diseases in a holistic and environmentally friendly manner.
Exploiting the Disease Triangle in Management
- The disease triangle can be exploited in the management of plant diseases by disrupting one or more of the three components, making it difficult for disease to occur.
- This can be achieved through strategies such as crop rotation, sanitation, biological control, and resistant cultivars.
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