Octenol Mosquito Attractant (1-octen-3-ol) is a naturally occurring by-product derived from plants and animals like oxen and cows that ingest large amounts of vegetable matter. Studies show that Octenol Mosquito Attractant, when combined with carbon dioxide, is highly attractive to many species of mosquitoes, no-see-ums and biting midges. American Biophysics offers Octenol Mosquito Attractant, which when used in conjunction with carbon dioxide, enhances catch rates for the Mosquito Magnet, Lentek Mosquito Trap and other electronic bug catching devices. Research shows that Octenol Mosquito Attractant can increase catch rates of no-see-ums by 3 to 4 times. Please note: The cartridge containing the mosquito attractant will not dissolve. However, the Octenol Mosquito Attractant is effective for 21 days as it slowly evaporates. After 21 days, replace attractant according to instructions. A package of 2 octenol cartridges lasts up to 42 days. Octenol atractant consists of a wax blend (to hold consistency in the car