

Is this normal for tomatoes?
I know that root bumps on tomatoes are normal, but this looks a little more severe than that and looks like it could have caused the stem to be eaten away in some places. Should I be concerned? I’m a newbie gardener so I could very well be doing something wrong with watering or soil, etc. I’m in Philly and it’s been hot and humid as hell so that might be playing a role as well.