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Questions and Answers
What does the term 'localized disease' refer to?
What does the term 'localized disease' refer to?
How can plant diseases be classified based on their occurrence?
How can plant diseases be classified based on their occurrence?
What does the term 'endemic' mean in the context of plant diseases?
What does the term 'endemic' mean in the context of plant diseases?
How are plant diseases classified based on the host plant?
How are plant diseases classified based on the host plant?
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How can plant diseases be classified based on the plant part affected?
How can plant diseases be classified based on the plant part affected?
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Which term refers to a plant disease based on symptoms such as rusts, smuts, wilts, and blights?
Which term refers to a plant disease based on symptoms such as rusts, smuts, wilts, and blights?
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What is an example of a classification of plant diseases based on the host plant?
What is an example of a classification of plant diseases based on the host plant?
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Study Notes
Localized Disease
- Refers to a disease confined to a specific area or part of the plant.
Classification by Occurrence
- Endemic: A disease that is constantly present in a particular region or population.
- Epidemic: A disease that spreads rapidly and affects a large number of plants in a short period.
- Pandemic: A disease that spreads worldwide.
Endemic Disease
- A disease that is constantly present in a specific region or population.
Classification by Host Plant
- Monocyclic: Diseases that infect only one host plant species during their life cycle.
- Polycyclic: Diseases that can infect multiple host plant species during their life cycle.
Classification by Plant Part Affected
- Root diseases: Diseases that affect the roots of plants
- Stem diseases: Diseases that affect the stems of plants
- Leaf diseases: Diseases that affect the leaves of plants
- Fruit diseases: Diseases that affect the fruits of plants
Classification by Symptoms
- Rusts: Diseases characterized by reddish-brown pustules on the plant surface.
- Smuts: Diseases characterized by black, dusty spores on the plant surface.
- Wilts: Diseases that cause the plant to wilt and lose its turgor.
- Blights: Diseases that cause rapid death and decay of plant parts.
Example of Classification by Host Plant
- Citrus greening disease: Affects citrus trees.
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Description
Test your knowledge of how plant diseases are classified based on the affected plant part, symptoms, host plant, and occurrence. Learn about localized and systemic diseases, as well as various symptoms such as rusts, smuts, wilts, and rots.
