I am dividing my list into what I think is safe to eat non-organic and what should be bought organic. Vegetables in the organic list have been known to be covered in pesticides. I have alphabetized them to make the list a little easier to use. Vegetables especially high in pesticides have asterisks * next to them. I would avoid the non-organic/conventional types of these asterisked veggies at all costs. The more asterisks, the worse. I hope this list helps and remember to keep eating your veggies!
Vegetables to Buy Non-Organic/Conventional
Corn, sweet (buy local)
Tomatoes (buy local)
Winter Squash (if you don't eat the skin)
Vegetables to Buy Organic
Carrots*** (carrots are sometimes grown just to absorb heavy metals from soil)
Celery*** (generally most pesticides of any other conventional vegetable)
Mushrooms (not a veggie, but you will probably find these in the vegetable aisle)
Winter Squash (if you eat the skin)
* Vegetables high in pesticides, heavy metals, and other contaminants
** Vegetables very high in pesticides, heavy metals, and other contaminants
*** Vegetables extremely high in pesticides, heavy metals, and other contaminants
If I'm missing any veggies from the list, let us know!