Which flies are generally much larger than house flies and are commonly found in dog runs?

Flesh flies are indeed generally larger than house flies and are often associated with areas where there is decaying organic material, making them a common sight in dog runs. These flies are part of the family Sarcophagidae, and they are known for their role in decomposition. They are usually characterized by their grayish coloration and are often seen where there is a presence of animal waste, which can serve as a breeding ground for them.

Their life cycle involves laying live larvae instead of eggs, which distinguishes them from many other fly species, including house flies, which lay eggs in organic material. This reproduction method allows flesh flies to exploit food resources quickly, contributing to their presence in environments like dog runs where waste is abundant.

Understanding the characteristics and behaviors of flesh flies can help pest control operators identify and manage these pests effectively in both residential and commercial settings, especially in areas populated by pets.