Indoors, place bait packets under or behind appliances, along wall borders, and in cabinets. Baits can also be placed next to fecal specks and droppings of cockroaches, which contain a natural attractant or aggregation pheromone. Look for these fecal specks and droppings under kitchen counters, behind kitchen drawers, and in the back of cabinets.
Insecticidal dusts can be an important part of an IPM program when applied in enclosed, out of the way locations where cockroaches hide. The most common active ingredient is boric acid powder. Boric acid powder is a contact poison and can be used preventively or when treating existing infestations. Boric acid powder is the least repellent of all the insecticides for cockroach control, and if it remains dry and undisturbed, it provides control for a very long time.
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