What is an example of a biological control method?

Introducing natural predators to manage pests is a classic example of a biological control method. This method involves utilizing the natural food chain to control pest populations without relying on synthetic chemicals. By introducing or promoting species that naturally prey on pests, the balance of the ecosystem can be better maintained, reducing the need for chemical interventions and minimizing environmental impact.

Biological control methods are important in sustainable agriculture and pest management as they can lead to long-term solutions for pest problems. For instance, ladybugs are often released in gardens to control aphid populations since they feed on these pests. This approach leverages nature’s own mechanisms for pest regulation, making it effective and environmentally friendly.

In contrast, other options involve synthetic materials or chemical approaches that can have adverse effects on the environment and non-target species. Enhancing nutrient levels in the soil focuses more on promoting plant health than directly controlling pests, while utilizing chemical repellents falls under the category of synthetic pest management strategies rather than biological ones.