What is the economic impact of fly infestation on a commercial brown egg farm?

Fly populations (primarily Musca domestica) can multiply exponentially on commercial poultry farms, fueled by warm temperatures and wet manure under cages. Flies are not just a nuisance; they are biological vectors for dangerous pathogens like Salmonella, E. coli, Pasteurella, and tapeworms. Furthermore, flies feed on wet eggshells and leave dark fecal and regurgitation spots ("fly specks") on the brown shells. These spotted shells cannot be sold to high-end supermarkets or packing houses, forcing farmers to sell them as downgraded eggs at severe discounts. Implementing integrated pest management (IPM) using biological controls, larvicides, and adulticides is essential. Farmers can read fly IPM protocols in the Poultry Encyclopedia, source larvicides on Poultry Plaza, monitor daily wholesale rates on Poultry Rates, and trade clean batches on Murghi Mandi.