A guru in New England recommends "Serenade", an organic insecticide. It
only needs to be used once a year.
Mel M Kelly wrote:
Use a all purpose fungicide and next year pick a variety tat is disease
resistant like First Lady II, Champion or Delicious. Buy your plants at
a local Greenhouse not at Wal-Mart and places like that.
From Mel & Donnie in Bluebird Valley
http://community.webtv.net/MelKelly/TheKids