Which nuisance organism can be controlled by disturbing the water surface?

Disturbing the water surface is an effective method for controlling mosquito populations. This technique disrupts the breeding and resting habitats that mosquitoes prefer. Mosquitoes typically lay their eggs on still or stagnant water, where the larvae can develop without disturbance. By creating ripples or movement on the surface of the water, the environment becomes less suitable for mosquito larvae, as they are less likely to thrive in disturbed water conditions.

This method leverages the biological behavior of mosquitoes, as they are attracted to calm water for reproduction but tend to avoid more turbulent water. Although other options like flies, worms, and beetles have their own control methods, they do not primarily rely on still water for their life cycles in the same way that mosquitoes do. For instance, flies can be controlled through sanitation measures, while worms and beetles have different environmental needs and are not significantly impacted by surface disturbance in water bodies. Therefore, this method specifically targets the breeding habits of mosquitoes, making it the most effective choice among the options provided.