Name a non-chemical method of pest control.

Biological control is recognized as a non-chemical method of pest management because it utilizes living organisms to manage pest populations. This approach may involve the introduction of natural predators or parasites of the pest species, or it could entail enhancing existing populations of beneficial organisms that can suppress pest numbers. For instance, introducing ladybugs to control aphid populations is a practical application of biological control.

In contrast, insecticide application and herbicide use involve the application of chemicals designed to kill pests or inhibit plant growth. These methods are chemical strategies, which do not fall under the category of non-chemical pest control. Fumigation also relies on chemical agents to eradicate pests within a structure or environment, further distinguishing it from non-chemical approaches. Therefore, biological control stands out as a method that aligns with non-chemical strategies in pest management practices.