Jon, before resorting to anti-fungal spray ,if you can pry some of the leaves apart with your fingers or pick of some sort, check to see if there's some cottony residue in between the leaves but further into the center of the semp head. If you do see something cottony, there may be a mealy bug wrapped up in there. You can verify by placing a dab (with q-tip or dental pick) of diluted alcohol and wipe the cottony residue out from the leaf and check to see if you see a bug that will be colored brown by the alcohol. Try that a few times in between different leaves new and old and on different heads to see if you "wet any bugs". If not, you may have something else.
Not had fungal problems so don't know what to recommend.
