What is the key advantage of biological control in pest management?

The key advantage of biological control in pest management lies in its ability to promote biodiversity and maintain ecological balance. This method utilizes natural predators, parasites, or pathogens to manage pest populations, which can lead to a self-sustaining system where the natural enemies keep pests in check without the need for synthetic chemicals. This approach supports a balanced ecosystem, encouraging healthy plant growth and improving soil health by allowing various species to thrive together.

In contrast, options that suggest immediate pest elimination, continuous human intervention, or reliance on chemical treatments overlook the essence of biological control. Biological methods aim for sustainability and long-term effectiveness rather than quick fixes or dependency on human oversight and synthetic chemicals, which can have detrimental environmental impacts.