Which environmental modification can help suppress pest populations?

Enhancing natural habitats for beneficial organisms is a strategic environmental modification that can significantly help suppress pest populations. By creating and maintaining environments that support the presence of beneficial organisms, such as predators, parasitoids, and pollinators, the natural balance of the ecosystem can be restored or enhanced. These beneficial organisms often prey on or parasitize pest species, thereby reducing their populations naturally without the need for chemical interventions.

For example, planting diverse flora can attract beneficial insects that prey on pests, leading to a decrease in pest numbers. This approach aligns with integrated pest management principles, promoting ecological balance and sustainability in pest control efforts. In contrast, other options may not effectively manage pest populations or could even exacerbate the problem, such as increasing humidity which might favor some pest species or intensifying chemical treatments that can lead to resistance in pests. Furthermore, removing all organic matter could destroy habitats for beneficial organisms, making it counterproductive in pest suppression strategies.