I grow 2 boxes of Better Boy tomatoes very year, 2 plants per box, and usually they do very well. The snack fixes BER. This year one of plants is growing poorly and the stems are turning brown. The other plant is the box is growing fine.
I do not see evidence of insects, altho I am not an experienced gardener and I could be missing subtle changes. I grow my plants in my pool cage, so insects are not usually a problem
Picture is attached
I appreciate any help
