What is an example of biological pest control?

Biological pest control involves the use of living organisms to manage pest populations in a way that is more environmentally friendly and sustainable than synthetic chemicals. Trap cropping is a prime example of this method. In trap cropping, a specific plant that is more attractive to pests is planted among the main crop. This strategy lures pests away from the primary plants, concentrating them in one area where they can be managed more effectively, often with minimal impact on the environment. This technique inherently leverages the natural behaviors and preferences of pests, exploiting them for the benefit of crop protection.

In contrast, chemical pesticides rely on synthetic substances to kill or repel pests, which can lead to environmental harm and negative impacts on non-target organisms. Crop monitoring is important for pest management but does not involve the use of biological agents. Soil fumigation involves applying chemicals to the soil to eliminate pests, diseases, or weeds, again focusing on synthetic methods rather than biological solutions. Therefore, trap cropping stands out as a clear example of biological pest control.