Ask a Question
Notify Me On Question Update
Email this Question
Why are tomatoes turning black (dark) from the bottom up when they begin to ripen. They are also dark on the inside.
Rate This FAQ
The condition that you are seeing is called blossom end rot. Blossom-end rot is a physiological disorder caused by a calcium deficiency in the young fruit. Utah soils have plenty of calcium so even though technically it is the problem, the real issue is fluctuation in the amount of water available to the plant that makes the plant unable to transport the calcium as needed. Tomatoes, squash, peppers, eggplants and melons are all vulnerable to this problem. The good news is that normally only the first few fruits to ripen are damaged.
There are a couple of different things that you can do to help prevent this condition. Overwatering your plants can aggravate this condition, especially if your plants are in a heavier clay soil. Keep a close eye on how much water you apply and how much moisture is in the soil. Mulching around your plants can also help to reduce the amount of water lost to evaporation and can help keep soil moisture levels more consistent. In addition, over fertilizing your plants can also contribute to this condition. I have included a link below to our tomatoes fact sheet.
Submit Your Suggestion
Other Questions In This Topic
- I have two Espalier apple trees and I would like to know when is the best time to prune them and should they produce every year or do they only produce by cycle's (every so many years)?
- Where can I find a vegetable garden planting schedule guide for the Salt Lake Valley area?
- What is the secret to getting carrots to germinate?
- I recently moved here from western Oregon, where they grew wonderful blueberries. Is it possible to grow blueberries here in Utah, Salt Lake County specifically? I've noticed that blueberries are not sold at the farmers' markets, and so far I haven't seen any blueberry bushes being sold in nurseries.
- The last few years, I have had persistent grass growth in my vegetable garden. I till the area each fall and spring, and pull out and discard all the vegetable plants. For the first couple of months, its easy to control the weeds and grass, then about 2/3 of the way through the summer, the grass starts to take over. By the time I pull out the plants in the fall, I practically have a lawn underneath them. Now that everything is pulled up, should I spray Round-up or another grass killer on the entire garden area? Or is there a better way to control the grass?
- What causes plants to look dirty and lose their green color during the heat of the summer? One culprit is spider mites.
- I have a reliance peach tree, 3rd year in the ground, and this year I noticed almost all of the branch tips were black, down about 3 inches. Some of the leaves started to brown spot and turn yellow, eventually falling. Also some of the branched produce fruit, but no foliage, the fruit is very weak and just falls in a light breeze. What can I do to correct this ?
- When is the best time to plant annual flowers outside?