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Old 07-18-2019, 05:47 PM   #1
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another tomato problem


I have a bunch of great looking tomatoes and harvested my first 2 ripe Romas today. They both were perfect, except for rot on the bottoms. I didn't see it until I pulled them off the plant. I was pissed so tossed those into the woods but found a little green one that had similar. I also see that a bunch of them have this little black tail, just a brittle piece of something that breaks off easily. See pics. Anyone know what this is?
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Old 07-18-2019, 05:56 PM   #2
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Re: another tomato problem


I worked on a tomato harvester for 2 seasons while in college. Mold was the enemy of the Tomato Ranchers. You did say it was raining a lot?


I believe that some of the flower can be left on the tomato, but wilted & black.


Maybe blossom end rot. https://vric.ucdavis.edu/veg_info/blossom_endrot.htm


Newer articles say possibly Blossom end rot from calcium-deficiency. Still reading. . .

Last edited by Nik333; 07-18-2019 at 06:14 PM.
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Old 07-18-2019, 06:15 PM   #3
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Re: another tomato problem


It rained a ton in June but not excessive lately, at least the last few weeks. It's been mostly dry, hot and humid. The cherry tomatoes are good, no issues. And the "Pineapple" tomatoes (a larger variety) still look perfect. The plants are all in a row on the deck and get the same sun and water. Maybe the Romas are more susceptible? The mold or whatever this is seems to be centered around the nubs of the flowers.

From the info in your link blossom end rot sounds right.
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Old 07-18-2019, 06:23 PM   #4
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Re: another tomato problem


My tomatoes suffered from blossom end rot about ten years ago when I
was watering fairly heavily then waiting a few days till the soil was very
dry to water again. Guess I thought that since that method is good for
grass that it'd be good tomatoes. Since then I water every day when it's
hot and dry. Zero blossom end rot ever since.
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Old 07-18-2019, 06:26 PM   #5
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Re: another tomato problem


I am watering every day now. Mine are in pots so they dry out quickly on these 90+ degree days. On some of the ridiculous 100 degree days coming starting tomorrow they may even need a refresh in the afternoon.
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Old 07-19-2019, 07:08 AM   #6
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Re: another tomato problem


I looked over the other tomatoes... the 2 roma plants have about 30 between them... and none of them seem to be affected with the rot... yet?

One other issue... my Pineapple tomato plant has 3 perfect large tomatoes... but only 3. There are other flowers that seem to just have died and dried up. More flowers growing so hopefully those will produce.

Meanwhile my ghost pepper plant is making far more of those than I can eat. They are so hot that a very little bit is all you need.
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Old 07-19-2019, 08:16 AM   #7
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Re: another tomato problem


"Some tomato varieties are much more susceptible to blossom-end rot than others (see Table 1). Generally, elongated pear and plum tomatoes used for processing and canning are prone to this disorder."


http://ipm.illinois.edu/diseases/ser...906/index.html


Now all you need to do is buy some land here & make a fortune growing tomatoes!


I want a small almond orchard, myself.
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Old 07-19-2019, 11:51 AM   #8
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Re: another tomato problem


@raylo32 , potted tomatoes really get the B-E rot badly if they're susceptible; varieties like that are best grown in the ground, or in pots using timed watering.

Romas are great in many ways; they're nearly foolproof out here. Yeah, tough skin, but good roughage . . . .

You might want to experiment with different varieties. Once upon a time, I thought that all tomatoes grew the same and time has shown they sure don't.

Keep us apprised of your situation. I've seen that you guys are girding for a heat wave. They're saying 110 FF in Ohio!

Hope that's a false alarm . . . .
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Old 07-19-2019, 11:58 AM   #9
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Re: another tomato problem


Yeah, Dave, I am in a townhouse so grow in pots on my second story deck. I have a water timer and Mister irrigation setup to water daily. As for the heat... well, as they say it isn't the heat, it's the humidity. The dew point here now is 75F, the temp is 93 and rising so the heat index is already over 100. Temp will rise at least several more degrees by this evening. 100 actual would not surprise me. Even now you go outside and it's like being wrapped in a thick wet horse blanket and sitting in a sauna.
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Old 07-19-2019, 12:07 PM   #10
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Re: another tomato problem


Quote:
Originally Posted by raylo32 View Post
Yeah, Dave, I am in a townhouse so grow in pots on my second story deck. I have a water timer and Mister irrigation setup to water daily. As for the heat... well, as they say it isn't the heat, it's the humidity. The dew point here now is 75F, the temp is 93 and rising so the heat index is already over 100. Temp will rise at least several more degrees by this evening. 100 actual would not surprise me. Even now you go outside and it's like being wrapped in a thick wet horse blanket and sitting in a sauna.
I've just seen the numbers forecast and at least it looks like Cleavagetown will only see 103 as opposed to 110.
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Old 07-19-2019, 02:37 PM   #11
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Re: another tomato problem


We use one teaspoon of Epsom salt per plant to avoid blossom end rot. Just put it about 2" from the plant.
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Old 07-19-2019, 03:04 PM   #12
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Re: another tomato problem


Blossom rot, lack of potassium in the soil. When I plant my tomato plants, I put a handful of bone meal with each one , and add some when they start getting big.
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Old 07-19-2019, 03:33 PM   #13
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Re: another tomato problem


This thread is becoming funny. Calcium or Potassium or Magnesium (Epsom Salts)?

"Blossom-end rot is a non-parasitic disorder that is related to a deficiency of calcium in the tomato fruit. The problem occurs when tomato plants have grown rapidly during the early part of the season and are then subjected to hot dry weather when the fruits are in an early stage of development. However, too much water such as with heavy irrigation may also bring on the problem. Tomato fruits may be affected by blossom-end rot at any stage of development but are most susceptible when 1/3 to 1/2 grown. Symptoms first appear as a water-soaked spot near the blossom end of the fruit. The spot becomes brown and enlarges until it may cover 1/3 to 1/2 of the surface; it later becomes dark, leathery, and sunken."

https://vric.ucdavis.edu/veg_info/blossom_endrot.htm

Bone broth would have Calcium.

"Naturally occurring calcium and potassium in soil often interfere with magnesium uptake through the tomato plant's roots; your balanced soil nutrients do not nourish the plants correctly and lead to yellowing leaves. Applying magnesium sulfate to the soil brings the elements directly to the root system. As the magnesium rapidly diffuses into the soil, the tomato plant roots eagerly absorb the nutrient. If you have known issues of magnesium deficiency in the garden, you can apply approximately 1 to 2 tablespoons of magnesium sulfate to each plant hole for the best tomato growth, as tomatoes need high magnesium concentrations for normal fruiting." SFGate


Variable watering as a reason, makes sense to me.

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Old 07-19-2019, 05:24 PM   #14
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Re: another tomato problem


Just a little farm in this dry air -



another tomato problem-2dbc2afe8be946489665f86adef77775.jpg


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Old 07-19-2019, 07:37 PM   #15
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Re: another tomato problem


We do it a bit different up here:
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