I grew up in northern Canada "mosquito country." There were no bug sprays at all - except soap and water which we whisked on roses with a broom to kill aphids. Otherwise we spent the summers swatting mosquitos and putting baking soda on the itchy spots. SUGGESTION: Someone should check the insect control people who work in clouds of spray daily. In some southern states it is not unusual for households to be on contract with a pest control company for a monthly house, lawn, or tree spray to control insects. Do these bug control companies have a prevalence of Parkinson's Disease in their staff? Has anyone here ever worked for an insect control company or been a crop duster pilot? Barbara Yacos <[log in to unmask]>