The vast majority of invertebrates serve vitally important roles in a healthy environment, including pest control, pollination, and providing food for other wildlife. Only a very small number of invertebrates are pests. Yet pesticides rarely distinguish between beneficial invertebrates and those which cause harm, and their use can have a variety of unintended negative consequences.
Ecological pest management focuses on preventive rather than reactive approaches to pest management. By increasing biodiversity and creating habitat for natural enemies, land managers can boost natural pest control services and reduce reliance on pesticides. The restoration of plant diversity in and around crop fields, combined with a variety of cultural, biological, and mechanical pest management practices, can keep pest populations below damaging thresholds without the use of chemical interventions.