(a) Define an insecticide (b) List four groups of insecticides. (c) For each of the following pests, name the class of pesticide used for their control: (i) grasshoppers (ii) rats (iii) weaver birds (iv) eelworms (d) Enumerate two effects of each of the following pest control measures on the environment: (i) chemical (ii) cultural (iii) biological 

(a) Explain the term candling in chicks production. (b) Write notes on the intensive method of managing poultry under the following headings: (i) sanitation (ii) feeding (c) List six breeds of pigs.

 (a) With the aid of an annotated diagram, describe the life cycle of the liver-fluke (Fasciola hepatica). Explain how you will prevent the liver-fluke from completing its life cycle in the field. (c) List three effects of lice on animal production. 

(a) State five reasons why farm accounts are kept. (b) Using the following information, prepare a profit and loss account for UNITY FARM, for the year ending December, 2005.

 (i) Cost of maize seeds  - -D1,400.00

 (ii) Cost of fertilizers - D1,200.00

(iii) Cost of insecticides - D1,900.00

(iv) Tractor hiring - D2,000.00

(v) Cost of herbicides - D1,100.00

(vi) Cost of cassava stems - D1,200.00

(vii) Sales of maize - D29,000.00

(viii) Sales of yam - D7,000.00

(ix) Sales of cassava tubers - D5,500.00

(x) Cost of processing cassava tubers - D1,500.00

(xi) Wages of workers - D6,000.00

(xii) Miscellaneous expenses - D4,400.00

(xiii) Maize consumed - D300.00

(xiv) Potato gift to visitors - D1,000.00 )

(a) Mention four target groups of the extension agent. (b) Discuss five important qualities of a good extension worker (c) State four functions of an extension worker.