I know I should know being from Maine but I don't. Been eating new potatoes for awhile but as they get larger they have a brown center all else looks great skins too. Any ideas?
Potatoes
http://nu-distance.unl.edu/homer/disease/agron/Potato/PoBlHrt.html
http://www.oznet.k-state.edu/path-ext/factSheets/Potato%20and%20Sweet%20Potato/Potato/Black%20Heart%20of%20Potato.asp
http://www.potatodiseases.org/tuberdiseases.html
Most likely black heart, or altho there are similar conditions which more or result in a hollow potato.
Isn't that actually called "brown center?" I think it happens most in cool wet weather and is the result of too-fast growth of the tuber. Not sure how it's prevented, as I don't think it's a disease or anything.
