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Last night I caught a cockroach in a plastic box with small hole (for breath). I cut the garlic into small pieces and dropped-in the box. Today morning I found that cockroach was dead. So I think, Garlic kills the cockroach.

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βˆ™ 12y ago
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βˆ™ 9y ago

An Osage orange can kill cockroaches. They hate the smell of this plant but if it is crushed, it will still attract them and kill them eventually. The pyrethrum plant is also effective. Crushing the flowers will produce pyrethrum which is found in commercial insecticides. Catnip can also kill them because it contains nepetalactone which is deadly to roaches.

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Q: Medicinal plants that can kill cockroaches?
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