In 2008 I was bitten by a lyme tick in my back yard in Maryland and yes I developed lyme disease. From that point I began bringing in about 2-3 ticks a week into my house from my yard. After the second yard spraying with a garlic based spray, I only saw two ticks for the rest of the summer. I was much much less bothered by mosquitos too. Usually I use a whole bottle of benadryl and have scars all over from scratching, but not last summer (I also use Damminix tick tubes for the ticks and distribute corn laced with ivermectin to get rid of ticks on deer.) I have given bottles of garlic spray to all my family and friends with yards bordering on deer country.