Yes I have had this.
Lack of Fert and Watering evenly.
That is my idea.
Cannot remember which of the NPK was low.

Blotchy Rpening is also called Gray Wall and yes, I've had fruit do that.

In my Seminis Tomato Pathology book it says that conditions for disease development can be:

"Environmental factors which appear to be associated with this disorder are high nitrogen, low potassium, high soil moisture, high humidity, temperature fluctuations, low light intensity and soil compaction. In addition, certain bacteria and/or TMV are thought to be involved in Gray Wall."

So take your pick or design your own combo of variables. LOL

What it says to me is that there's no one variable that can cause it so that something can be done about it b'c there are just too many variables that can't be controlled all at one time.

Carolyn

Thanks for the helpful information! I would never have guessed that was called "gray wall".

The plant otherwise looks healthy, so I'm pretty sure it doesn't have TMV or a serious deficiency. I don't think it could be temperature fluctuations (except if the crazy june weather counts) or low light intensity.

However, high nitrogen, low potassium, high humidity and soil compaction are all possibilities. This is a first year garden, raised bed in red clay I dug out this spring, amended with aged cow manure and some grass clippings (no compost yet :( ). So, pretty nitrogen-heavy. Also, that was the first bed I dug and probably went too deep - the soil has now gotten pretty hard again...

Nothing much I can do this season about the compacted soil, but I'll try adding some wood ashes to increase potassium.

Delph