Roaches hate a variety of smells, including:
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Lavender: Roaches are known to hate the smell of lavender, which is good news for homeowners who grow lavender plants or keep lavender essential oil.
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Garlic: Garlic has a strong smell that repels cockroaches. You can place whole cloves around the kitchen or sprinkle garlic powder in corners.
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Essential oils: Roaches dislike the smell of essential oils like peppermint, spearmint, and citrus. You can use these oils to make a natural cockroach repellent spray.
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Chrysanthemums: These flowers produce a smell that roaches absolutely hate. Many pesticides even contain the artificial smell of chrysanthemums to control infestations.
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Oregano oil: The strong, spicy, sharp odor of oregano oil is shown to dispel cockroaches.
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Osage orange: Although there is no hard scientific evidence, it is believed that cockroaches hate the smell of the Osage orange, more commonly known as a hedge apple.
Its important to note that not all odors will have the same effect on cockroaches, and they may ignore some smells due to their resilience and ability to adapt to their surroundings.