Mosquito Barrier Organic Liquid Spray Repellant is a very strong liquid garlic made from very potent garlic cloves. Spraying garlic to keep insects away is not something new, farmers and master gardeners have been doing it for many generations.
Homemade fly/wasp/yellow jacket traps Simply throw away when full. Avoid sweet bait if you don't want to accidentally trap honey bees. Meat will get more wasps and yellow jackets, rotten stuff will get hornets and flies.