Ask yourself: whom would you trust more? A physical person in front of you, who's whole life depends on her business or a company which is legally set-up to maximize profit?
But the USDA organic accreditation doesn’t mean pesticide free unfortunately. They still use a tonne (actually more by quantity) of pesticides, and those pesticides aren’t proven to be safer. E.g. Rotenone is shown to damage mitochondria, but is fine to be dumped on “organic” crops. So sadly it’s still actually very debatable whether you’re better off going organic or not.
Edit: think of “USDA Organic” label as more of an industry marketing gimmick that allows them to triple prices, than any genuine intent to produce safer foods.