Which practice helps reduce the risk of watering that can lead to mosquito breeding?

Habitat modification is the practice that helps reduce the risk of watering that can lead to mosquito breeding. This approach involves altering the environment to eliminate standing water or damp conditions where mosquitoes can breed. By modifying habitats, such as removing containers that collect water, improving drainage, and maintaining landscaping that minimizes water accumulation, the potential for mosquito populations to thrive is significantly reduced.

In contrast, while site selection can influence where breeding occurs, it doesn't directly address the conditions that lead to water accumulation in existing locations. Soil tillage primarily relates to agricultural practices and doesn’t specifically target mosquito breeding habitats. Cultural control refers to techniques that alter pest behavior or habitat but is broader and may not directly impact standing water issues as effectively as habitat modification does. Therefore, focusing on modifying habitats is the most effective strategy to control mosquito breeding by reducing opportunities for water accumulation.