If roaches keep reappearing no matter how much you clean or spray, you're almost certainly dealing with German cockroaches — the small, fast-breeding species that lives exclusively indoors.
They breed faster than you can spray
A single female German cockroach can produce up to eight egg cases in her life, each holding 30–40 eggs. By the time you see a few on the bench, dozens more are hidden in warm, dark crevices near food and moisture.
Surface sprays miss the harbourage
Aerosols kill the roaches you hit, but they don't reach the cracks, motor housings and voids where the colony actually lives. Worse, repellent sprays can scatter a population into neighbouring rooms.
What actually works
Professional control uses precise gel baiting placed directly into harbourage points, combined with a residual treatment and, where needed, an insect growth regulator that stops eggs developing.
Pair that with simple hygiene — reducing food and water access and sealing gaps — and the colony collapses instead of bouncing back.
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