content.ces.ncsu.edu › poultry-broilers-layers-andPoultry (Broilers, Layers, and Turkeys) | NC State Extension ... Dec 27, 2022 · Formulated as an insecticidal strip and used for fly control, nithiazine strips (1 percent) are hung in poultry buildings. The recommended placement density of 1 strip per 100 to 300 square feet is seldom used due to the size of production houses (12,000 to 36,000 square feet) and the cost per strip.