Looking at those pictures, you may want to consider that straw mulch. It might be easier to walk in your gardent. It helps to retain water and reduces mud or dirt splashing up on the leaves in a rain storm, the source of some fungal diseases. When you mulch you may want to remove lowest leaves at the stem and the cups and start watering farther out from tomatoes. See if this helps the problem.
God Bless you and may it work!
Well, on one hand this garden is mainly for and sharing the produce, and actually doing something good with the land than growing weeds etc., but when the cost of it is too high then it is not worth it. On the other hand losing much of a crop due to soil contamination is not good either. It rained hard Friday night and the containers I have placed around most did protect them from splashed mud, expect in certain spots.