Cannabis essential oils unlock how camphor repels mosquitoes
Phys.org
February 24, 2026
AI-Generated Deep Dive Summary
Scientists have made a significant breakthrough in understanding how mosquitoes detect and respond to repulsive odors like camphor, derived from cannabis essential oils. A new study identifies an odorant receptor that plays a crucial role in detecting such repellents, triggering a neural pathway that overrides the insects' attraction to human scents. This discovery provides fresh insights into mosquito behavior and could pave the way for more effective repellent strategies.
The research highlights how activating this specific receptor disrupts mosquitoes' ability to locate humans based on scent cues. By overriding their natural inclination to seek out prey, this mechanism creates a clear avoidance response. The findings underscore the complexity of mosquito olfactory systems and their ability to perceive environmental signals that influence behavior.
This breakthrough matters because mosquitoes are responsible for transmitting deadly diseases like malaria, dengue, and Zika virus. Understanding how they detect repellents could lead to more effective mosquito control methods, reducing disease transmission globally. This knowledge could also inspire the development of new repellent formulations that target this specific receptor, offering a safer and more sustainable alternative to traditional insecticides.
The study's implications extend beyond pest control, as it deepens our understanding of how insects process sensory information. By unraveling the mechanisms behind mosquito behavior, scientists can better protect public health and develop innovative solutions to combat mosquito-borne illnesses. This research not only advances science but also holds promise for improving global disease prevention efforts.
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Originally published on Phys.org on 2/24/2026