What is the plant called that repels bedbugs? - briefly
The plant most commonly cited for repelling bedbugs is lemon eucalyptus (Corymbia citriodora). Its oil, rich in citronellal, deters the insects.
What is the plant called that repels bedbugs? - in detail
The plant most commonly cited for deterring bed‑bug infestations is lemon eucalyptus (Corymbia citriodora). Its leaves contain p‑menthane‑3,8‑diol (PMD), a volatile compound that interferes with the insects’ sensory receptors, reducing their ability to locate hosts.
PMD is extracted as an essential oil and applied in several ways:
- Diluted spray on bedding, mattress seams, and surrounding furniture.
- Sachets containing dried leaves placed near sleeping areas.
- Integrated into mattress encasements treated with the oil.
Scientific trials report a 70‑90 % reduction in bed‑bug activity after repeated exposure to PMD‑based formulations. The effect persists for several weeks, after which reapplication is required to maintain protection.
Other botanicals with documented repellent properties include:
- Lavender (Lavandula angustifolia) – linalool and linalyl acetate act as irritants.
- Peppermint (Mentha piperita) – menthol disrupts feeding behavior.
- Catnip (Nepeta cataria) – nepetalactone repels insects in laboratory settings.
- Neem (Azadirachta indica) – azadirachtin interferes with development and feeding.
When using lemon eucalyptus, follow these safety guidelines:
- Keep concentrations below 5 % for direct skin contact to avoid irritation.
- Store oil in a cool, dark place to preserve potency.
- Test on a small fabric area before widespread application to detect discoloration.
In summary, lemon eucalyptus provides the most robust botanical defense against bed‑bugs, supported by active PMD, while complementary herbs can enhance a multi‑layered repellent strategy.