Ask a Question
Notify Me On Question Update
Email this Question
Why do my tomatoes have brown spots on the bottom?
Rate This FAQ
This brown/black spot is called BER (blossom end rot), caused by a calcium deficiency within the fruit of the plant. Utah soils have plenty of calcium, but for some reason calcium was not translocated during early fruit set. Failure to translocate calcium occurs during times of stress: transplanting, cool cloudy weather, root rot, or drought. Soil enriched with high quality organic matter reduces BER because it retains moisture while also providing aeration to roots. Mulch helps prevent BER by reducing swings in soil moisture, plus it sustains soil organic matter for good aeration.
Submit Your Suggestion
Other Questions In This Topic
- 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.
- Should I cut back my perennials for winter? High Country Gardens says to wait until early-mid spring, but that is contrary to what I have been doing. It is true that I suffer some loss each spring.
- Should I rotate my vegetable crops?
- I left my carrots in the ground over winter this year without mulching them. Now it is May and they have resumed growing. We pulled a few out and, other than a little bit of woodiness they seem to be okay. Is it safe to eat carrots that have been left so long in the ground with no mulch?
- I heard there is an organism in garden soil that can be harmful to pregnant women. Is this true?
- How do I protect my zukes and cukes from the annual onslaught of squash bugs?
- When should I spray my apple and apricat trees to prevent worms in the fruit? What product should I use? I planted a plum tree last fall, what should I do for it now?
- What herbicide/killer do we use to eradicate "salt cedar" & cheat grass??