Question
My holly is yellowing and the leaves have black spots.  The berries are red.  I know the leaves will have some black spots and will shed but this appears to be more than the usual leaf drop.  I plan to rake up disease leaves, thin, and fertilize with Hollytone if that is the best.  Please advise.  Thank you

Answer
Your plan is good--I would also spray the foliage with a fungicide.
This sanitary step should be followed by several applications of a broad spectrum fungicide such as maneb, ferbam or a copper fungicide, such as Bordeaux mixture. As an added plus, these fungicides are also effective for other leaf spots and die-back which occur on hollies.