Sorry for the sideways pictures. I'm on my phone and can't figure out how to fix it.

I don't know what happened in this case, but whenever I see leaves... wilting, I FREAK OUT !!!

I had a very bad experience in my first year of growing tomatoes, when ALL the plants wilted. I'm sure, the lack of mulching and spraying fungicide was the cause.

I know, sometimes wilting can be fixed, but many times it can NOT.

Last year I had a plant that started wilting every 3-4-5-6 days.

I watered and everything was fine.

Few days later... same thing. I watered again, and everything was fine.

[ I used drip irrigation. ]

During the summer I used that plant to tell me... when to water.

The plant produced very well, and all the other plants were happy with this unusual watering schedule.

If I check my notes, I might tell you the variety name.

The plant started wilting more often when temperatures were in the 90s.

I rotated the pictures.

Thanks for flipping the pictures! I tried a bunch of stuff on my phone, but it kept uploading them sideways so I gave up. Every single other leaf branch looks nice and healthy on this guy...and there is no spotting or anything....so at the moment I am chalking it up to the extreme heat yesterday. Gave it a good drink and hoping it has perked up. I didn't have time to check it before work this morning unfortunately...if it hasn't I think I will give it a foliar spray tonight of some diluted liquid kelp and organic milk.

<Temps have been in the upper 90's all week. As a result I have been watering every day,>

I assume you know that daily watering only leads to shallow rooted, water dependent plants that readily wilt?

90 degree temps may seem hot to us but they are normal for tomato plants and they tolerate such temps just fine as long as they have been encouraged to develop their normal deep roots.

Dave

I don't always water every day...just have been this week because it's so hot and the soil was dry at least an inch down. I usually judge by the soil. Before this week it was probably average 3 times a week. All my plants are in containers...can't plant in ground.

I deal with high heat and strong sun a lot (109 to 111 last week, killing temps all around) and find out for me it's more important to shield a container (even a big 'un) from the heat and the sun than to deal with just about any other stress.

Pots are VERY different than ground planting, and that pic of the tom next to the A/C looked like the plant was in the ground. If only one branch is bad, you have no problem. Toms can get a lot grodier than that and still be OK.