Hello all,
I noticed this golden glow on several tomato seedling leaves. I am quite sure it is not a disease, but an example of light stress / light damage. The growth light is now at 30 cms distance, while it is a 200W LED light with the equivalent power of a 1200W HPS. It is supposed to cover 2 to 4 m2, but given that this is a new light for me I have been experimenting with the distance.
The light is 'full spectrum', but purple hues dominate for what it is worth. There is also some slight UV emitted downwards, but it isn't much. Still, I am mentioning that too.
Does r/indoorgarden indeed think that these golden spots are light damage, or do you consider it is something else? Note: from the bottom of the leaf it appears that the leaf got 'thin', as if the cells between veins were destroyed. Compare it with an old umbrella with some thin spots in it.
by Elucidator–
2 Comments
To add, for as far as the first picture is not enough: it looks [identical to this!](https://1.bp.blogspot.com/-7u7QJzXumGs/Xy6vKrg6QHI/AAAAAAAADoU/X9t1wXHPCeEb9IavuI-sxRIkYYlccPQwwCLcBGAsYHQ/s0/leaf%2Bburn%2Bscorch%2Btomato%2Bplants.JPG)
my led damage usually occurs on the edges first, but idk, maybe wrong? and usually it turns brown rather than white. not sure what you’ve got.
although, when it is too close to the led, they do get crispy, it seems like urs is crisping?
basically, put your hand where the leaf is, if your hand is uncomfortable to be there for 7 days a week, its too close to the light