What is the definition of biological control?

Biological control is defined as the intentional release of natural enemies, such as predators, parasites, or pathogens, to manage and reduce pest populations. This method leverages the existing ecological relationships in nature, aiming to use these natural antagonists to keep pest populations in check without the need for synthetic chemicals.

This approach is sustainable and environmentally friendly, often leading to long-term pest management, as it promotes an ecological balance. It also reduces the risk of pest resistance that can occur with chemical treatments. Biological control methods can include introducing specific species that prey on or parasitize the pests, thus helping maintain a more balanced ecosystem.

In contrast to the other options, which involve synthetic chemicals, physical methods, or preventative measures, biological control focuses on utilizing the natural interactions present in the ecosystem to manage pest populations effectively.