(ai) Explain the term selective exploitation as used in forest management
(aii) State four advantage of selective exploitation of forest trees
(b) Distinguish between field pest and storage pest of crops
(ci) Name three examples each of storage insect pest of crop
(cii) Name three examples each of field insect pest of crops
(d) Mention four ways of conserving water in the soil
(ai) selective exploration is the process of cutting or harvesting only matured trees in a forest. it is a way of concentrating
certain selected species of timber in a forest reserve. the system allows for the harvesting of older trees while younger
ones remains as cover to the surface of the forest
(aii) - It ensure the continuous supply of timber
It protect the soil from erosion
- it ensure the concentration of selected species of timber in a forest
- It prevents indiscriminate falling of timber by giving licenses to saw millers by state forestry division
(b) Field pest of crops can be described as an organism which causes damage to crops when still in the field, while storage
pest of crops are organism that damage to crops when still in the field.
While storage est of crops are organisms that damages or destroys stored crops.
(ci) - Beetle
- moths
- Rodents
(cii) -Grasshopper
- caterpillar insect
- Locusts
(d) - By Mulching
- By planting of cover crops
- use of drought tolerant crops
- By rotational Grazing.
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