I have been suspecting my LED's of causing deficiency-like symptoms due spectral diffraction, intensity, etc. Moving them to a greater distance has somewhat alleviated this, however the lower leaves, where there is much more diffraction from the upper canopy, are still hit pretty hard. There are a few marks on the upper leaves.
Here is a pic of a leaf with a magnified view. Superficially all you can see is a very faint white mottling. Under the microscope however you can see all kinds of tiny black nodules, like burns. When this gets out of hand, you can see this all with the naked eye.
Any ideas or suggestions?
Here is a pic of a leaf with a magnified view. Superficially all you can see is a very faint white mottling. Under the microscope however you can see all kinds of tiny black nodules, like burns. When this gets out of hand, you can see this all with the naked eye.
Any ideas or suggestions?