Which of the following is an example of an ecological approach in IPM?

Releasing predators to control pest populations is an example of an ecological approach in Integrated Pest Management (IPM) because it focuses on harnessing natural biological processes to manage pests rather than relying solely on chemical controls. This strategy promotes biodiversity and can help maintain ecological balance within the ecosystem. By introducing or enhancing the presence of natural predators, such as ladybugs, lacewings, or parasitic wasps, the population of pests can be kept in check without the need for synthetic pesticides. This not only helps in reducing the pest population effectively but also supports the overall health of the environment by fostering beneficial species. Such approaches are crucial in IPM as they aim for sustainable pest management that minimizes the negative impact on the ecosystem.