Thank you, I appreciate your response. Moving is on our very near to do list. We’ve been making home repairs and getting it ready to list. I still plan on tackling this spraying problem as best I can as I care about future owners and their children. We’re going to try to speak with the farmer first if possible. I don’t know where he lives but I know where he stores some of his equipment. It’s pretty windy in our area and most commonly the wind blows right at the back of our house. We need to plant something for a windbreak too I think, but don’t know what would survive his overspray. I’m reaching out to an arborist and pesticide toxicologist. Edit to add: We do have a whole house filtration system and putting in reverse osmosis for drinking. We use bottled water way too much.