Mosi-guard Lemon Eucalyptus Insect Repellent Spray. Mosi-guard® Lemon Eucalyptus is a long lasting, plant-based mosquito, tick, midge and general insect repellent. Long lasting and effective Up to 10 hours protection in high and low risk areas. Lasts just as long and works just as well as synthetic repellents. DEET free and kind to skin. For those who care what goes on their skin. A DEET free alternative to synthetic insect repellents. Made from a renewable resource, Mosi-guard® Lemon Eucalyptus is a long lasting, plant-based mosquito, tick, midge and general insect repellent. Made with Oil of Lemon Eucalyptus sourced directly from the Eucalyptus Citriodora tree, its a DEET-free alternative to synthetic insect repellents and scientifically proven to be as effective. Fresh, zingy smell Recommended for adults and children from 6 months of age Trials have shown effective protection for up to 8 hours after a single application For use in high and low risk areas Repels mosquitoes, midges,