On the general subject of PREVENTION.
I thinks that a good systematic spraying with fungicide can help prevent the spread and infestation.
I use 3 types alternatively.
DACONILE
COPPER
NEEM OIL.
I have found bleach spray effective on Grey Mold . That happend every late season up in PNW. It can happen down South too, as Bill has experienced. That is due to too much rain and/or high humidity. We know that mold thrives in moist and humid conditions, like in damp cellar. And of course bleach is to the rescue. I would use it according to Bill,s mix.
So far this season I have sprayed with copper twice already. The next time I wiil do with Neem and the following round with Daconile.
Inline with preventive measures , I believe in pruning, to lighten up the foliage, especially the lower leaf branches, to accommodate good air flow.
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Gardeneer
Happy Gardening !
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