Question
Hi David,

Can you please tell me safe and effective chemical for Camellia flower and petal blight?  (The book I have recommend Captan, but I heard it is no longer available on the market.) Thank you for your time.

Answer
Yeah---captan is no longer available.  I would recommend either Daconil (chlorothalonil) or Spectro 90 Fungicide (chlorothalonil + Thiophanate Methyl).  Either of these products should provide preventative control if sprayed about 2 weeks apart during flowering season.  I would spray at first flower break and then about two weeks later.  The products should not hurt bloom quality but could burn a little if applied too strong.  Pick up all fallen flower petals and dispose as these will serve as a source for the overwintering/oversummering of the fungus.  Good Luck.