Through some recent gardening research, we have learned that herbs can be used to attract beneficial insects and repel pests. One of the more interesting facts we found is that Basil can be used to deter two of the most annoying pests to humans, flies and mosquitoes. The plant supposedly gives off a fragrance bugs and flying insects do not like. Try planting some of these plants around the patio area in your backyard during the summer. It can only help.