I can't figure this one out

[Edifice]

Stumbled upon this, given that it hasn't hit the fans it makes perfect sense that I would have this. I didn't list my bloombooster earlier (breme) which has sulfur. In the link below sulfur toxicity hits fully deloped young leaves first, e.g. my sugar leaves. Removing excessive fan leafs removed the plants ability to process the amount of sulfar in the soil.


Eitherway flushing down and feeding them the extra cal/mg seems to have stopped it.

http://www.missouribotanicalgarden....nd-problems/environmental/sulfur-dioxide.aspx

 

[Waira]

.good to hear,.. in any case, S tox' is beyond rare, and according to what I read, it has to be crazy high, so much so that the cations it's compounded with (usually the S in formulations is SO4 sulfate) would cause severe nute burn along with the blocking of other nute's uptake,...
.....this article deals with air pollution SO2, so in your case no way this is a source,...I hope?!