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National Open University Exam Past Question – ACP305 JUNE/JULY EXAMINATION

NATIONAL OPEN UNIVERSITY OF NIGERIA ACP305 PRINCIPLES OF CROP PROTECTION

14/16 AHMADU BELLO WAY, VICTORIA ISLAND, LAGOS

SCHOOL OF SCIENCE AND TECHNOLOGY JUNE/JULY EXAMINATION

 

COURSE CODE:    ACP305

COURSE TITLE:   PRINCIPLES OF CROP PROTECTION (2 Units) TIME ALLOWED: 2 Hours

INSTRUCTION:    ANSWER ANY 4 QUESTIONS

 

1 (a) (b) (c) (d) (e) Define a crop pest with some examples

Discuss the importance of pests in agriculture

Discuss the conditions that promote pests development

List the categories of crop pests

List the general control measures of crop pests

(5 marks) (5 marks) (5 marks) (5marks) (5 marks)
 

2

 

(a) (b)

 

(c)

 

Discuss the damage caused by insect pests.

Name and describe the insect pests of important Nigerian cereal,

tuber crops

Discuss the control measures of insect pests.

 

(10 marks)

legume, root and

(5 marks) (10 marks)

 

3

 

(a)

 

List the difference types of animal pests other than insects

 

(5 marks)

(b)       Discuss the damages caused by rodents, nematodes and birds to agricultural
 

 

 

4

(c) (a) products

Discuss the control measures of rodents, nematodes and birds.

 

Define weeds and the effects of weeds in crop production

(10 marks)

(10 marks)

 

(5 marks)

  (b)

(c)

Discuss the principles of weed management

Discuss the methods of weed management

(10 marks)

(10 marks)

 

5

 

(a) (b) (c)

 

Define a disease and what the causes of plant diseases

Discuss the categories of plant diseases

Explain briefly the general method of plant disease control

 

(5 marks) (10 marks) (10 marks)

 

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