Thanks Mark.

Well, Dalem is typically 85% Merlot, so under CA rules it could be
lableled Merlot. According to Neal Martin, these days Beau Sejour Becot
(they separate the name, unlike Duffau) is about 70% Merlot.
http://www.wine-journal.com/becot.html
So couldn't be called Merlot in CA.