By all means necessary...be careful. Getting stuck out there with no help is not a good idea. Feeling any better today?

Bummer about the NL. Were the root tips a healthy white, or were they brown and kinda mushy? Was the ground hard, dry and compacted...or is it saturated and mucky?

Were you indoors, I'd have you check the ingoing and runoff ph, and ask about what you use to provide calcium, and how much you're using.

It doesn't look like the black spot fungus I get on my roses, but a dose of fungicide wouldn't hurt at this point, eh?

How do the other non-cannabis plants look around your grow? Are they having this problem too?