They start of beautiful, then get this brownish specks, then this. I also saw a squash bug on one yesterday so dont know if this is causing the damage, or some of it. If a tomatoe has the brown spots, that part of the tomatoes will begin to shrivel up where the spots are, maybe a mold? IDK, but I have had a decent tomato the whole season. My tomatoes are enjoying the cooler weather and fruiting like crazy, but I'm not getting anything usable.
It appear to be blossom end rot, which would be likely at the beginning and end of the season when soils tend to be deficient in nutrients. It's primarily caused by a calcium deficiency. It can be rectified by using lime and blood & bone - better to use a little regularly than a lot infrequently throughout the growing season. (Avoid high nitrogen fertilisers otherwise you'll get a beautiful tomato bush with bugger all tomatoes!)
The cracks in the fruit are usually caused by inconsistent watering.
Also, using a few small pinches of sulphate of potash (potassium sulphate) throughout the season strengthens the cell walls of the plant and fruit making them less susceptible to these issues. Improves flavour and disease resistance.
I see some insect damage. But the black in those round spots isn't what I see on my tomatoes. The smaller tomato appears to have a physical damage.
From my experience blossom end rot appears on the bottom of the tomato and it's usually smoother in appearance. What you have looks like it's attacking even the round spots. Are your plants staked, are these tomatoes laying on the ground? I'd do some googling for an organic fungicide, I've used the copper stuff, but I never use it after tomatoes are developed. I'd want to find out now what you have. It's getting late for this year, but I'd want to find out now so I'd be prepared for next year. Wish we could view the pictures while writing.
Cori here is a good video on how to make an "emergency" liquid calcium mix out of egg shells and vinegar to give a fast calcium boost. Gary Pilarchik's channel is my favorite for fixing garden related issues.
Also I recently learned that people (like me) in areas with lots of insects often pick their tomatoes when they are just starting to ripen and then ripen them indoors to prevent all the fruit from being eaten by insects. I planted a bunch of San Marzano paste tomatoes thsi spring and didn't even get ONE usable tomato because they were all eaten before ripening, sure wish I knew they could be ripened in a box.
Lucrecia Anderson wrote:Cori here is a good video on how to make an "emergency" liquid calcium mix out of egg shells and vinegar to give a fast calcium boost. Gary Pilarchik's channel is my favorite for fixing garden related issues.
Also I recently learned that people (like me) in areas with lots of insects often pick their tomatoes when they are just starting to ripen and then ripen them indoors to prevent all the fruit from being eaten by insects. I planted a bunch of San Marzano paste tomatoes thsi spring and didn't even get ONE usable tomato because they were all eaten before ripening, sure wish I knew they could be ripened in a box.
I didn't have a bug problem this year I had a ghost, or something. lol I was going out daily to pick the red tomatoes and one morning I went out and every single tomato was GONE. Green, pink, tiny, huge, ALL. I am baffled.
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John Indaburgh
Posts: 523
Location: SW PA USA zone 6a altitude 1188ft Grafter, veggie gardener
This is not blossom end rot, or insect damage!
The cracks are caused by incorrect watering and are called Growth Cracks (drought followed by heavy rain or watering)
The other problem is Bacterial spot disease...
We can fix it! We just need some baling wire, some WD-40, a bit of duct tape and this tiny ad:
montana community seeking 20 people who are gardeners or want to be gardeners