Bottom leaves yellowing and drying out on edges...Help!

Charlotte, NC

So this is mainly happening to my tomatoes, but it is also showing up on okra and squash, which leads me to believe it is a nutrient issue. It is only happening on some plants and it always the lower leaves. The edges will yellow, then brown, but mostly just the edge, some of then spread yellow to the rest of the leaf.

This is the first year in this spot, I haven't got my soil test results back yet. The lettuce, spinach, and potatoes in the same bed are doing really well. About 1 week ago I did apply a tomato plant feed of 18-18-21 I have also top dress it with 1 inch of compost before I planted (they have been in the ground for 3 weeks). I have been watering them pretty well, I don't think it is a water issue (over or under watering).

Any ideas?

Thumbnail by ryan112ryan
Grandview, TX(Zone 8a)

It looks to me(I'm no expert) that the bottom leaves are getting too wet when you water and that is causing the problem.

Charlotte, NC

here is a photo of the okra, this shows the yellowing a bit more:

http://img.photobucket.com/albums/v416/ryan112ryan/IMG00164-20110502-2001.jpg

Thumbnail by ryan112ryan
Victoria, TX(Zone 9a)

I'm no expert either, but I tend to agree with catzgalore. If you are watering during the day in peak heat this could pose a problem. I know it does down here in my zone. I only water in the evenings.

Memphis, TN(Zone 7b)

I've burned my tomato plants before when watering around noon. The water on and around the leaves intensify the heat to the sun. It was a sad day...

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