Tomato leafs turning yellow / Brown spots

RuberduckJune 1, 2012

Hey guys,

I'm having a bit of an issue with 1 of my 2 tomato plants. I'm somewhat new to this so I'm not sure what to do.

I have 2 tomato plants and one is showing some odd signs on the leaves. Off one branch all the leafs are turning yellow and showing this small brown spots. There is another branch doing the same thing. But all the other branches look fine.

The tomato plant right next to it is fine, no odd signs or anything. I've attached an image below.

I water them every morning and being in a dry climate, I considered watering in the evenings as well, but I've been holding off on that. The soil doesn't feel to dry by the end of the day.

Link to image:

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Looks like nutrient deficiency. Are you feeding them regularly?

    Bookmark   June 1, 2012 at 9:11PM
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Yeah I actually fed them this morning, although I did not do it in the past, so that might be contributing to it.

The stuff I got said feed once a month, so I'm going to try that.

    Bookmark   June 2, 2012 at 12:43PM
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Tomatoes are heavy feeders and need lots of nutrients. You should have started feeding long ago (based on the size of the fruit in the background).
You should use some water soluble fertilizer with higher amount of potash (go for 15-15-19 or 19-19-25 or some similar N-P-K ratio) and with micronutrients (Ca, Mg...). You are dealing with multiple nutrient deficiencies and your plant needs them fast (water soluble fert nutrients are readily available to plant, so i'd strongly advise you to use those). Always follow directions for use on the label, over-feeding can hurt them too.

Good Luck,

    Bookmark   June 2, 2012 at 1:06PM
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Could also be watering stress, have they dried out to the wilting point recently? Perhaps been too wet for a period?

    Bookmark   June 2, 2012 at 3:32PM
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