On 7/18/2016 8:56 AM, John McGaw wrote:
Is there anything practical that can be done? My couple of
container-grown 'Patio' tomato plants produce loads of tomatoes, more
than I can use actually, but they all invariably develop the typical
sunken then darkened spots of anthracnose at about the time they ripen
properly. Even those that look OK quickly turn when brought into the
kitchen. I use fresh commercial planting mix every year so the disease
should not be from that source. All I can figure is that it is 'in the
air' since we have had a large percentage of our native dogwoods
succumb to anthracnose in recent decades. Every year is seems that
some plague or another attacks my tomatoes -- I'm about ready to give
up on fresh tomatoes.

You can apply a preventative fungicide application at regular
intervals to prevent it from happening next year.

http://soilplantlab.missouri.edu/pla...fungicide.aspx