Which biological agents may be used for termite control?

The use of biological agents for termite control includes a variety of organisms that can effectively target and eliminate termite populations. Fungi, bacteria, and nematodes each play a unique role in pest management through biological control methods.

Fungi that are pathogenic to termites, such as certain species of Beauveria and Metarhizium, can infect and kill termites by entering their bodies and proliferating inside. This method can help reduce termite numbers significantly over time.

Bacteria, particularly species like Bacillus thuringiensis (Bt), produce toxins that can harm termites when ingested. These bacteria are often formulated into baits or sprays to target termites specifically, providing an eco-friendly alternative to chemical pesticides.

Nematodes, which are microscopic roundworms, can be effective biological control agents when applied to infested areas. They enter the termite’s body and release bacteria that ultimately kill the host. This method is particularly appealing because nematodes are beneficial to the environment and can target termites without adversely affecting non-target organisms.

Since all three agents—fungi, bacteria, and nematodes—are recognized and utilized in various pest control strategies for managing termite populations, the most comprehensive and accurate answer encompasses all of them. Thus, the correct choice acknowledges