Question

Biological method of control of pests and disease relies on

• A. Introduced chemicals
  
• B. Interspecific competition
  
• C. Natural predation
• D. Intraspecific competition
  

Answer 1

The correct option is C Natural predation

Biological control

Biological control is a method of control of the pathogenic population and the pests present in the environment by utilising biological means. One of the common methods involves the use of the natural predators of the pest population to control the latter.

For example, dragonflies are used in certain areas to get rid of mosquitoes. This is because dragonflies feed on the mosquitoes and help reduce the latter’s population.