cephalopod
Well-Known Member
The tops views look like a P-. The back-sides kinda look like there are bugs/eggs along the veins, but what gets me is all the spots appear to be at the base of the cystolithic hairs. That's a good thread HGK, I've seen similar threads where deficiencies where the suppected cause of issues, when it turned out to be a vapor pressue deficit issue. Your rH doesn't seem to be drastically low for your temp though. Are the affected leaves localized or over the entire plants? PPS can be found at the depot FYI.