Natural enemies are organisms that prey on or compete with other species, helping to control their populations. These can include predators, parasites, and pathogens. For example, ladybugs feed on aphids, which are harmful to plants, thus benefiting the ecosystem by keeping pest numbers in check. In agriculture, natural enemies are often used in biological control to manage pests without harmful chemicals. By introducing or conserving these natural enemies, farmers can promote a healthier environment and reduce reliance on synthetic pesticides. This approach supports sustainable farming practices and enhances biodiversity.