The answer to 'how to prevent mosquito' is to take a multi-pronged approach that includes eliminating breeding grounds, using repellents, and creating a less mosquito-friendly environment around your home. Start by draining any standing water where mosquitoes lay their eggs, such as gutters, birdbaths, pet bowls, and old tires. Use EPA-registered insect repellents containing DEET, picaridin, or oil of lemon eucalyptus when spending time outdoors. Plant mosquito-repelling herbs and flowers like citronella, lavender, and marigolds around your yard. Consider installing fans on patios or decks, as mosquitoes have a hard time flying in windy conditions.
If mosquitoes persist despite your efforts, you may need to call a professional pest control service to apply targeted treatments around your property. They can identify and address the root causes of your mosquito problem more effectively than DIY methods.