What must be identified first in a facility experiencing a filth fly problem?

Identifying the source of the problem is the crucial first step when dealing with a facility experiencing a filth fly issue. Understanding where the flies are breeding and the specific conditions that are attracting them allows for targeted interventions. Filth flies typically breed in decaying organic matter, waste, or unsanitary conditions, making it essential to pinpoint these sources to develop a practical and effective control strategy.

Once the source is identified, it becomes easier to determine other factors, such as the type of fly species, their breeding season, and appropriate extermination methods. Focusing on the source will lead to improved sanitation practices, eliminate breeding sites, and prevent future infestations, making it a foundational step in managing the problem effectively.