First year growing tomatoes in containers in the midlands area of SC, I am using MG potting Mix and roughly 5 weeks ago I added a center strip of Tomato Tone.
Not long after adding the tomato tone I noticed mold growing and then the tomato stems turned a brownish/copper color and leaves starting at the bottom started dying and it has now spread towards the tops of the plants,.
The copper color has stretched upwards of 6ft and only the new growth is a nice green color.
I will say the plants are still growing and producing flowers/tomatoes so I have no idea what the problem is.
I did buy some daconil last week and sprayed on the plants and also on a nearby container with 2 cherry varieties as a precaution as it does not appear to be affecting the cherry varieties.
The plants are a beefsteak and celebrity if it matters.