Which of the following mosquitoes is primarily addressed by BTI granules?

The correct response pertains to how Bacillus thuringiensis israelensis (BTI) granules function specifically to target mosquito larvae in water bodies. BTI is a naturally occurring bacterium that produces toxins lethal to certain insects, particularly those in the larval stages of mosquitoes.

Aedes vexans is a species that breeds in a variety of habitats, often in temporary standing water. BTI granules are most effective against larvae in such environments, making them suitable for controlling Aedes vexans populations. Since this species can proliferate quickly in environments where BTI is applied, the use of these granules helps manage its population effectively.

In contrast, the other species mentioned, such as Culex pipiens, Ochlerotatus sollicitans, and Anopheles quadrimaculatus, while also susceptible to control measures, may not be the primary targets for BTI. Culex pipiens typically breeds in more polluted water, and while BTI can still affect its larvae, it is often less effective in those conditions compared to clean water environments preferred by Aedes vexans. Similarly, while Ochlerotatus sollicitans and Anopheles quadrimaculatus are of concern in mosquito control, the specific targeting capability and habitat suitability