What is the concept of 'biological control' in pest management?

The concept of 'biological control' in pest management refers to the use of natural enemies, such as predators, parasites, or pathogens, to manage pest populations. This approach leverages the natural ecosystem's balance, where certain organisms keep pest populations in check, thereby reducing the need for chemical pesticides. By introducing or enhancing these natural enemies, pest management can be performed in an environmentally friendly way that promotes biodiversity and sustainability.

This method of pest control is particularly valuable because it can provide long-term pest management solutions, often requiring less ongoing intervention compared to chemical methods. In contrast, the other options involve direct human intervention through chemicals, genetic modification, or mechanical means rather than utilizing biological interactions within ecosystems. Hence, the focus on natural enemies distinguishes biological control as a method aimed at harnessing nature to mitigate pest problems effectively.