Unfortunately for us, vegetables and fruit show signes of pesticide residue. Some more and some less.
Fortunately for us, each year, the Environmental Working Group (EWG) lists the vegetable and fruit that show the highest amount of pesticide and the lowest amount of pesticides. This allows us to make best decisions on which fruit and veggies to buy as organic.
The list is called Dirty Dozen and Clean Fifteen.
See the list here.