(a)(i) Define vegetative  propagation. [2 marks] 
(ii) Give three advantages and three  disadvantages of vegetative propagation. [6 marks]
                    
                    
                    
                      (b) State four cultural  methods used for controlling crop pests in the field. [4 marks] 
                        (c) Enumerate four harmful  effects of chemical pest control. [4 marks]