The first aspect of the treatment phase should be sanitation. If chemicals are being used, they should be applied in and around roach harborages. Spot treat known roach harborages and pathways, but do not treat entire floors, walls or ceilings. Buildings with multiple dwellings usually require the treatment of each unit. Baits can also be used to treat for roaches.
Baits are advantageous because of their low toxicity and they offer effective control.
However, they are costly, and precise placement of the device near known harborages is required. Residual dust formulations are particularly effective, but should not be used in areas that are affected by the homeowner's everyday activities. Contributed by Ashley Ledford Foreman, who graduated from the University of Georgia, Athens, Ga., with a degree in Wildlife Biology. She is currently a lab technician working for Dr. Brian Forschler.