Vegetables and Fruit forum: Tomato checkup for new gardener

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Arkansas (Zone 7a)
MHurl
May 6, 2018 5:39 PM CST
Hello everyone,

I seem to be experiencing some problems with one of my tomato plants and can't figure out what is wrong, so I was hoping that some of the more experienced gardeners here could help!

Some background info:

- I bought two tomato plants of the Early Girl variety from Lowe's back at the end of February. They seem to have had some small leaf problems off and on since then, but nothing too major.

- I am in Zone 7a and started leaving the tomatoes out all day last week. They are currently checked at least twice a day and watered as needed.

- The soil I use is Sta-Green potting mix with fertilizer. I know that it is not necessarily the best, but my goal this year was to have a decent garden with minimal cost. The fertilizer breakdown is 0.1% Nitrogen, 0.08% Phosphate, and 0.06% Potash. The tomatoes were upgraded to the five gallon buckets a couple of weeks ago and had not been fertilized until today when I gave them some Miracle Grow tomato food (N 18%, P 18%, K 21%).

The problem plant is the tall one on the right. Last week parts of the stem began to turn an interesting gray/purple color and the joints around each branch turned a noticeable lighter green. A couple of days ago one of the smaller bottom branches shriveled up and wilted suddenly, and a few leaves on different parts of the plant seemed to be wilting/turning a dark shriveled green with occasional tan spots. A couple of weeks ago it had one flower bloom, and while the peduncle and sepal have stayed and a small fruit has begun forming, the sepals are now turning a grayish/light purple color.

The smaller plant has been much healthier overall and has two small tomatoes at the moment, but seems to have begun the same pattern of coloration on the stem. I mainly want to know so that if its something that cannot be treated, I can cut my losses and replace the plants before it gets too late.

Could this be some type of wilt or blight? Or could it just be simply an under fertilization problem that's easily solved? I've tried to do as much research as possible, but nothing beats actual experience. Smiling

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Name: Rita
North Shore, Long Island, NY
Zone 6B
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Newyorkrita
May 9, 2018 9:17 AM CST
Prune off the bottom branches with the affected leaves. Rather common for tomatoes to get some sort of fungal issues. They will simply keep growing.

I doubt that they need any more fertilizer right now. Too much and you will not get flowers and fruit set, merely lots of leaves. They plants actually look really good to me.

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