Powdery Mildew - UPDATE 1/12/2009
Above - Powdery Mildew has been seen on bunches for the first time this week. Defuse Powdery mildew is almost impossible to see it looks like a faint web pattern on berry skin. It is caused by an infection just before the berries become naturally immune approximately 4 weeks after the end of flowering.
We have also been finding leaf spots of fine white growth like the one shown below.