The rain and fog we had over May 27th to 28th was NOT long enough for infection by the Botrytis fungus that causes blossom blight. The average temperatures were about 43 to 48F and the rain was only for about 24 hours. At 46F the fungus needs at least 36 hours of rain to cause moderate to high infection. There is a very low risk of less than 10% of the blossoms becoming infected with this last wet period, and this is NOT enough to cover the cost of fungicide applications.
Any dead blossoms you are currently seeing on your plants are caused by mummy berry disease, since this fungus can attack both leaf and flower buds.
For more information on Blossom blight caused by Botrytis please see Fact sheet # 212.
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