Skinned fruits top the list:

Peaches - listed as the worst with the highest levels of pesticides of all conventional produce
Strawberries - one of the most pesticide laden food of all
Raspberries
Apples
Grapes &  Raisins and Juice! - many kinds of juices have Grape Juice in them
Nectarines
Apricots
Pears
Cherries
Lemons - especially if zesting, should definitely use organic
Limes
Bananas - heavy chemicals for the trip to America including Thiabendazole which Damages the Brain and Nervous System.
Kiwis
Pineapple
Cantaloupe from Mexico
Tomatoes