Ahs2303:Plant Pathology Question Paper
Ahs2303:Plant Pathology
Course:Bachelor Of Horticulture
Institution: Meru University Of Science And Technology question papers
Exam Year:2013
QUESTION ONE (30 MARKS)
a) State the contribution of Barry in the history of plant pathology. (3 Marks) b) Explain how pathogens cause plant disease. (4 Marks) c) Describe the strategies that could be used in the management of plant nematodes. (5 Marks) d) Explain the chemical defense mechanisms in plant with appropriate examples. (5 Marks) e) Write explanatory notes on the cause and symptoms of bacterial soft rot. (5 Marks) f) Explain the control measures of soil fungal pathogens. (4 Marks) g) Describe four specific environmental manipulations that farmers may use to manage or prevent plant pathogens ecologically. (4 Marks)
QUESTION TWO (20 MARKS)
Write an essay on transmission of plant diseases
QUESTION THREE (20 MARKS)
Describe the principles of plant disease control.
QUESTION FOUR (20 MARKS)
Discuss environmental factors affecting disease development.
QUESTION FIVE (20 MARKS)
Describe inoculation and penetration stage of a disease cycle.
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