Peppermint oil can repel cockroaches under controlled conditions, but that finding needs a boundary around it. Laboratory research has found strong avoidance of mint-oil-treated areas by German and American cockroaches. […]

Cockroaches can be repelled by certain plant-derived odors, but the evidence is uneven. Catnip compounds, some essential oils, and several isolated plant chemicals have produced measurable avoidance in laboratory experiments. […]

Both extreme heat and sustained freezing can kill cockroaches. For German cockroaches, laboratory data show complete adult mortality after 120 minutes at 44°C (111°F), with much faster mortality as temperatures […]

The best cockroach killer depends on where the insects are hiding and which species you have, but for established indoor German cockroach infestations, gel baits with active ingredients such as […]

Bleach is harsh enough that sufficiently intense direct exposure can injure or kill many small organisms, but that does not make ordinary household bleach a dependable cockroach treatment. A cockroach […]

The safest cockroach-control setup around pets is usually one that minimizes the animal’s access to the pesticide. Secure bait stations and carefully placed gel bait can provide low-exposure options when […]

Bug bombs can kill cockroaches that receive enough insecticide exposure, but they are a poor choice for controlling an established German cockroach infestation. In occupied apartments, total-release foggers failed to […]

Cockroach bait works by combining food ingredients with a small amount of insecticide. A cockroach finds the bait, feeds on it, and ingests the active ingredient. Gel makes that bait […]