Using pesticides

Given the link between pesticides and PD, I am loath to use them at all now.
I guess it is probably too late now, but what do others do when suffering from ant invasion, mosquitoes, or attacked by lice or fleas?
Am I being unneccessarily cautious, or does it make sense for PWP to avoid them at all costs?
In my past i used woodworm killer to fumigate an entire house foolishly without a mask. I often wonder if that had anyting to do with me getting parkinson's.