US Patent 10306894 Natural mosquito repellant

An essential oil blend diluted in soybean oil against the bites of Anopheles stephensi, An. gambiae (the main malaria vectors in Asia and Africa, respectively); Aedes aegypti and Ae. albopictus (the main vectors of arboviruses listed above). Repellency tests, appraising the protection time for each species, were performed under laboratory conditions using human volunteers and nulliparous female mosquitoes. The results show that the natural repellent was extraordinarily effective against both Anopheles and Aedes genera.