I must confess to not washing all fruit before I eat it. Especially berries. I sometimes wonder if there's any home testing kit to figure out how much chemical

I must confess to not washing all fruit before I eat it. Especially berries. I sometimes wonder if there's any home testing kit to figure out how much chemical residue is on fruit and vege. Easy testing for pesticides/sprays could prompt changes in both consumer behaviour (e.g. preparation/washing), but also buying behaviour (if one farm's berries had less spray than another's, presumably the former's would be preferable to most people).