Time to destroy the plants in the garden that have succumb to fungal disease. You can see the difference between the tomato plants being grown in the raised bed vs the ones being grown directly in the ground. The later are on the side of the house, receive less lite and are getting to much water from a leaky hose. Do not put diseased plants in your compost pile. Throw them in the garbage (or, in our case, I throw them down by the creek for the deer to finish off). In order to "starve" the pathogens that are living in the soil, avoid growing any nightshade plants (tomato, eggplant, potato, and peppers) in this area for the next 3 years. (I think I will turn this space into a garlic bed).