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Hort 041:Horticultural Crops Protection Question Paper

Hort 041:Horticultural Crops Protection

Course:Agriculture

Institution: Kenya Methodist University question papers

Exam Year:2013

KENYA METHODIST UNIVERSITY

DEPARTMENT OF AGRICULTURE AND NATURAL RESOURCES

END OF SECOND TRIMESTER 2013 (DAY) EXAMINATION
COURSE CODE : HORT 041
COURSE TITLE : HORTICULTURAL CROPS PROTECTION

TIME:2 HOURS

INSTRUCTIONS:

Read the questions carefully.
Answer ALL Question in Section A (Compulsory) and any Other TWO Questions in Section B

SECTION A (30marks)

Question One
a) Define the following:
i) Pathogen (2marks)
ii) Insecticide (2marks)
iii) Biopesticides (2marks)
iv) Herbicides (2marks)
v) Plant growth regulators. (2marks)
b) What are the effects of weeds on ornamental plants? (10marks)
c) i) What is the magnitude of agricultural produce losses caused by
pests in the tropics? (2marks)
ii) Name the methods you would use to prevent the spread of
pathogens to areas where they do not exist. (4marks)
iii) What are the two important classes of insects? (4marks)

SECTION B

Question Two
a) Name the control measures you would use to fight fungal diseases in
your vegetables. (8marks)
b) i) Explain how the soil type and soil fertility affect the development
and spread of plant pathogens. (10marks)
ii) Name any FOUR types of pathogens. (2marks)

Question Three
a) What are the general characteristics of the following classes of weeds?
i) Perenial weeds (6marks)
ii) Annual weeds (6marks)
b) Crop protection encompases FIVE broad approaches namely. (8marks)

Question Four
a) Name the pesticides you would use to control the following plant pests: Plants, Algae, Birds, Bacterial, fungi, insects, mites, snails, Nematodes and Rodents. (5marks)
b) With respect to the importance of pesticide use, explain briefly the following:
i) primary benefits (any 8) (8marks)
ii) Secondary benefits (any 7) (7marks)

Hort 041:Horticultural Crops Protection Question Paper

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