What is the role of biological control agents in vector management?

Biological control agents play a crucial role in vector management by naturally regulating vector populations. This approach leverages the natural enemies of the vectors—such as predators, parasitoids, and pathogens—that help keep vector populations in check without the need for chemical pesticides. For example, certain species of fish can consume mosquito larvae, and other insects can parasitize or predate on adult mosquitoes.

This method of control is beneficial as it can lead to more sustainable management of vector populations, reducing the reliance on chemical insecticides which can have harmful environmental impacts. By promoting the natural balance within the ecosystem, biological control supports long-term vector management strategies that can be more environmentally friendly and effective in maintaining low vector densities.

Other methods mentioned, like applying chemical insecticides, intentionally increasing temperatures, or creating artificial habitats, do not align with the fundamental concept of biological control, which emphasizes the use of natural processes and organisms to manage pests.