I have a small patch of potatoes this year, and here we'll show you how I hilled them. Most of the new potatoes that grow from the seed potatoes will grow above the level of the planted seed, so you have to either plant the seed potatoes in a deep trench that you fill in, or hill up soil or mulch above the soil line.
In this episode we talk about Colorado Potatoe Beetles, and the spray mentioned is called Novodor and is available from Fedco. You can also get floating row fabric and seed potatoes from Fedco.
Additional information from the University of Georgia: Potato Production in the Home Garden or this site http://www.thegardenhelper.com/potato.html
How long did the potatoes grow before hilling?