SPCB Applicator Practice Exam

The house fly is known for breeding in feces and garbage because it thrives in decaying organic matter. These flies prefer environments rich in nutrients for their larvae, making feces and rotting food ideal conditions for them to lay their eggs. When female house flies locate suitable breeding grounds, they can produce hundreds of eggs in a single batch, which hatch quickly in these nutrient-laden environments. This reproductive strategy is particularly effective in urban settings, where human waste and refuse provide abundant food sources for developing larvae.

In contrast, although the flesh fly also breeds in decaying organic material, it more specifically prefers carrion or decomposing animals. The fruit fly primarily breeds in overripe or rotting fruits and vegetables, and the cluster fly is known for its association with soil and occasionally breeding in earthworms, rather than directly in human waste or garbage. Each of these other flies has more specialized breeding preferences, making the house fly the clear choice when it comes to breeding in feces and garbage.