Observation

This question was also well attempted by the candidates. In 3(a)(i-ii), majority of the candidates could classify specimens G (Grasshopper) and H (Bean beetle) according to their feeding habits as well as name the parts of crops damaged by specimens G (Grasshopper) and H (Bean beetle) but most of them could not state the ways in which specimen H (Bean beetle) is economically important as required in 3 (a)(iii). However, in 3(b), most of the candidates were able to state the ways of controlling specimens  I (Bird) and J (Rat)
 The expected answers include:
3 (a)(iii)           Ways in which specimen H (Bean beetle) is economically important
                -           Destroys viability of seeds /destroys cotyledon
                -           Reduces market value of crop/quality of crop.
     (ii) Name one part of crops damaged by each of specimens G and H.     [ 2 marks ]

 

                 -           Increases farmer’s cost of production.

                     -          Reduces the quantity of stored produce (seed)