Brown spots on my young tomato plants #749860 - Ask Extension


Brown spots on my young tomato plants #749860

Asked May 14, 2021, 7:42 AM EDT

I have some potted tomato plants that I grew myself under lights. They have been transitioned to a makeshift greenhouse to harden off. There are brown shots evident on the leaves (please see attached image). What shall I do? Thank you! Jim

Clinton County Michigan

Expert Response

Jim, thanks for the question.  

If the spots showed up after the transition this could be sun scald. The hardening off process may have been a little too fast.  If before the transition it could could be a burn from being too close to your grow lights.  According to some sources, plants too close to the light (especially LEDs) can cause the problem. Check out the following links:

I hope this helps.

Barry Andersen Replied May 14, 2021, 7:52 PM EDT
Thank you foe the response and suggestions. I’ll see how things go from here. 

On Fri, May 14, 2021 at 19:52 Ask Extension <> wrote:
James Briganti Replied May 14, 2021, 10:22 PM EDT

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