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Video ViewAttendees 8

Member Symposium

Physiology, Biochemistry, and Toxicology

Insect Chemosensory Systems and Semiochemicals: From Molecular Genetics to Neuroethology

Essential oils as tick and mosquito repellents: an alternative to synthetic repellents!?

Sunday, November 5, 2023
4:10 PM – 4:30 PM ET
Location: Gaylord National Resort & Convention Center, Potomac C
In-Person
ases of mosquito- and tick-borne diseases are rising worldwide. Repellent products can protect individual users from being infected by such diseases. In a previous study, we identified five essential oils that display long-distance mosquito repellency using a Y-tube olfactometer assay. In the current study, the contact repellent efficacy of 20 active ingredients from the Environmental Protection Agency’s (EPA) Minimum Risk Pesticides list were tested using Aedes aegypti and Ixodes scapularis. We utilized an arm-in-cage assay to measure complete protection time from mosquito bites for these active ingredients. To measure tick repellency, we used an EPA-recommended procedure to measure the complete protection time from tick crossings. We found that of the 20 ingredients tested, 10% v/v lotion emulsions with clove oil or cinnamon oil provided the longest protection from both mosquito bites and tick crossings …