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Vector And Rodent Control Question Paper

Vector And Rodent Control

Course:Bachelor Of Science In Environmental Health

Institution: Kenyatta University question papers

Exam Year:2009

KENYATTA UNIVERSITY
UNIVERSITY EXAMINATIONS 2008/2009
SECOND SEMESTER EXAMINATION FOR THE DEGREE OF BACHELOR
OF SCIENCE IN ENVIRONMENTAL HEALTH
HEH 212: VECTOR AND RODENT CONTROL

DATE: Friday 3rd April, 2009
TIME: 8.00 a.m. – 10.00 a.m.

INSTRUCTIONS
1. Answer ALL questions in Section ONE. In Section TWO, answer question
ONE and any other TWO.
2. Please write your answer LEGIBLY.
3. Exam duration is 2 hours.

SECTION ONE
1.
Giving examples, briefly define the following:

a)
Pest

[1 mark]

b)
Vermin

[1 mark]

c)
Vector

[1 mark]

d)
Rodent

[1 mark]

e)
Larvicide

[1 mark]

2.
List five signs of rodent infestation.

[5 marks]

3.
State four common characteristics arthropods exhibit.

[4 marks]

4.
Discuss why rodents and vectors should be controlled.

[6 marks]

Page 1 of 2

SECTION TWO
1.
a)
Giving examples, differentiate between complete and incomplete
metamorphosis. [5
marks]
b)
Using relevant examples, briefly explain the following modes of disease
transmission by insect vectors. [15
marks]
i. Biological
transmission
ii.
Mechanical
transmission
2.
a)
Compare and contrast the characteristics of mice and rats. [5 marks]
b)
Briefly discuss the most appropriate methods that can be used to control
rodents.

[5 marks]
c)
State five main features that an ideal rodenticide should meet.

[5 marks]
3.
Describe the bionomics of THREE of the following vectors and state ways in
which
they
can
be
controlled.
[15
marks]
a)
Mosquito
b)
Cockroach
c)
Tsetse
fly
d)
Housefly
e)
Ticks
4.
“Integrated Pest Management (IPM) is a sustainable approach in managing pests
by combining biological, chemical, cultural and physical tools in a way that
minimizes economic, health and environmental risks”. Discuss this statement.

[15 marks]

…………………….

Page 2 of 2

Vector And Rodent Control Question Paper

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