Plant Diseases
Biology ⇒ Plant Biology
Plant Diseases starts at 7 and continues till grade 12.
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See sample questions for grade 12
Describe how environmental factors can influence the development of plant diseases.
Describe the impact of plant diseases on global agriculture.
Describe the main differences between symptoms and signs of plant diseases.
Describe the role of sanitation in plant disease prevention.
Describe two methods used to control plant diseases.
Explain the concept of integrated disease management (IDM) in plant pathology.
Explain the difference between systemic and localized plant infections.
Explain the importance of early detection in plant disease management.
Explain the role of vectors in the spread of plant viral diseases.
Explain why monoculture can increase the risk of plant disease outbreaks.
Name one example of a plant disease caused by a fungus.
Name one plant disease caused by a nematode.
Name the three components of the disease triangle in plant pathology.
Name the three main types of plant pathogens.
A farmer notices that a previously healthy field of wheat is suddenly showing widespread yellowing and stunted growth. Laboratory analysis reveals the presence of a new strain of rust fungus. Discuss the possible reasons for the rapid spread of this disease and suggest integrated management strategies.
Describe how the use of molecular diagnostic tools has improved the detection and management of plant diseases.
Describe the process of gene-for-gene interaction in plant disease resistance and explain its significance in breeding disease-resistant crops.
Discuss how climate change can alter the epidemiology of plant diseases, providing at least two examples of mechanisms by which this occurs.
Explain how horizontal (polygenic) and vertical (monogenic) resistance differ in plants, and discuss the advantages and disadvantages of each in plant disease management.
Explain the concept of induced systemic resistance (ISR) and compare it with systemic acquired resistance (SAR) in plants.
