Cockroaches

Cockroach control works best with bait, not spray. A contact spray only kills what it touches, but a gel or paste bait gets carried back to the harbourage and shared through the colony – including the roaches you never see.

German cockroaches (small, tan, found in kitchens) breed fastest and need a gel bait placed in cracks, hinges and under appliances. American and Oriental cockroaches (larger, found in drains, subfloors and garages) usually respond well to the same gel baits plus a residual barrier spray outside.

Products here are the professional brands (Advion, Optigard) technicians use – not the supermarket spray you've probably already tried.