this site has a few good ideas.
Best Natural Insect Repellents and Homemade Herbal Bug Sprays - The Daily Green
find a good garlic oil based mixture,spray around your area and the mesquitoes will leave and not return for about 30 days, probably many other bugs also. It works well and the scent is gone in a few hours. We use orange oil in a solution to repel fleas and some other annoying pest, works very well for us and after an explosion of fleas on our dogs and us, this has ridden us of the problem. Orange oil is a good item to have on hand around the house also as it is a very good cleaner sanitizing item. Google until you find the ingredients and go for it. "The Dirt Doctor", google this also, is a good source of info on this subjerct. Good growing and less itching