Followup - Leave Wilting Problem

by Mark
(Cincinnati)

Hi,

This is a followup to my earlier post about wilting leaves.
More of the leaves are not curling up along the length on
both tomato plants.

I went through the troubleshooting section and it looks like
my environment is within spec. But, when I wrote the
earlier post, I did not have two pieces of information.

1) My reservoir is at 60 degrees F.
2) The relative humidity in the grow chamber the last
24 hours was a low of 20% and a high of 50%.

Could low humidity cause the curling leaf problem? I think
I'm getting enough nutrient solution to the plant. Twice
per day for 15 minutes with drip rings. Within about two
minutes of the pump starting I hear nutrients returning
to the reservoir.
----------------------------------------------------------

Answer from Stella/Simon:
Hi Mark,
I'll be honest with you, under LED lights in the photos it is hard for me to see what might be going on. But three possibilities come to mind off the top of my head:

1.that humidity is awful dry, try misting the plant several times a day and see if that makes a difference. or one of those small humidifiers.

2. what brand and type, wattages are those LEDs? How far are they from the plants? Perhaps this is a lighting issue.

3.your description sounds suspiciously like some type of virus. By any chance, are you a smoker, or has a smoker handled these tomato plants? There is a virus called tobacco mosaic virus that can infect and devastate tomato plants. Easily spread on smokers hands. Not saying that's what this is, but the curled up leaves are suspicious for disease.

Hope this helps!

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