(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

One of the factors that influence supply is:

• A) Income
• B) prices of other products
• C) social capital
• D) level of technology

The growth of both trees and arable crops on the same piece of land is?

• A. ley farming
• B. mixed farming
• C. forestry
• D. taungya system

Silos ensure good storage because

• A. they are made of stainless steel
• B. of the air-tight environment created
• C. a lot of produce can be stored at a time
• D. they have high relative humidity

Which of the following is not a reason why planting a mixture of grass and legume on a pasture is economical to the farmer? The

• A. mixture can harbour pests
• B. mixture helps in preventing soil erosion
• C. farmer will save on fertilizer
• D. mixture provides a balanced feed for livestock

Tabacco belongs to the group of crops called

• A. Fibres
• B. Beverages
• C. Stimulants
• D. Cereals

The most important factor that determines the rate of agricultural development is

• A. adoption of viable agricultural research findings
• B. quantity of herbicides used
• C. number of machinery available
• D. number of people involved in agriculture

Farm surveying can be defined as the

• A. leveling of land during road construction
• B. sighting of structures through a theodolite
• C. making measurements on land from which maps are drawn
• D. estimation of the type and properties of soil on a farm

To reduce rural-urban migration, the government should

• A. establish commodity boards
• B. provide social infrastructure
• C. establish tractor-hiring units
• D. provide extension services to farmers

Which of the following is not a characteristic of a good pasture?

• A. Ability to withstand extremes of climate and soil conditions
• B. Ability to withstand competition from weeds or other forage crops
• C. Ability to produce high quality fresh leaves
• D. Ability to provide mainly high quality carbohydrates.