That was sort of what I was thinking but it is nice to have a second set of eyes. My first thought would have been to immobile nute but it is so localized that I think it is just smoking up the roaches and emptying the half drank beers rather than go down 40 inches and get it fresh. If that is the case I will never see recovery. I have fought like hell to get enough Phosphorus in them.Puddentane-- capitate trich' stalks can vary quite a bit among strains,... This localized yellowing at this stage seems pretty common too, and from what I can tell, it's usually P related, though early symptoms like this are not definitive enough to say for sure what's behind it,.. S defc. can also manifest as such, but it's very uncommon, so do a few micronutrient defc's (Zn and Fe mainly)... I believe at this stage, often the plant will pull mobile nutes from closer proximity fans, rather than expend the energy to translocate them from the far lowers,...
Thanks for taking the time. Appreciated.