Use sparingly to cover exposed skin and clothing. Wash all treated skin and clothing after returning indoors. Store DEET out of reach of children. Note that Vitamin B, ultrasonic devices, incense and bug zappers have not been shown to be effective in preventing mosquito bites. Mosquitoes lay their eggs in standing water.
Mosquitoes can enter homes through through unscreened windows or doors, or broken screens.
Make sure that doors and windows have tight-fitting screens. Repair or replace all screens in your home that have tears or holes. Remove all discarded tires from your property. Dispose of tin cans, plastic containers, ceramic pots, or similar water-holding containers. Make sure roof gutters drain properly.