What happened to the tomato?

Asked June 27, 2019, 1:52 PM EDT

Hello Cooperative Extension Expert, I have attached two photos: one of the first tomato from a bush I planted this spring, which was very healthy and flavorful, and one of the second tomato, which has a condition I can't identify. I planted the tomato in new organic soil in a clean pot and put in 12 crushed eggshell so it wouldn't develop blossom end rot. I hope that's not what this condition is, To me, it almost looks like sunburn. The tomato is on my neighbor's porch, which gets more shade than my front porch does. Could you please tell me what this condition is and what I can do about it? Many thanks,

Prince George's County Maryland vegetables abiotic issues tomatoes tomato with bloom end rot tomato with discoloration

2 Responses

This is blossom end rot, which is not always black in appearance. (You can see images online.) https://extension.umd.edu/hgic/topics/blossom-end-rot-vegetables

Although egg shells are a source of calcium, they break down very slowly and might not be supplying sufficient calcium for months. We'd recommend that you top dress with powdered lime and work it into the top 1-2" of soil as much as you can without disturbing the roots. There are also spray-on calcium products available that you can apply to leaves.
Uneven watering contributes to blossom end rot, too. https://extension.umd.edu/learn/tomato-and-blossom-end-rot

Ellen

This is blossom end rot, which is not always black in appearance. (You can see images online.) https://extension.umd.edu/hgic/topics/blossom-end-rot-vegetables

Although egg shells are a source of calcium, they break down very slowly and might not be supplying sufficient calcium for months. We'd recommend that you top dress with powdered lime and work it into the top 1-2" of soil as much as you can without disturbing the roots. There are also spray-on calcium products available that you can apply to leaves.
Uneven watering contributes to blossom end rot, too. https://extension.umd.edu/learn/tomato-and-blossom-end-rot

Ellen